Diaphragm Valves
Harrington offers name brand diaphragm valves, providing a broad selection of brands, styles, connection types, materials, and specifications. These valves are designed to control fluid flow by adjusting the entry and exit areas of the media. Available materials include polypropylene and PVDF. Choose your product to request a quote and get purchasing information.
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The Type-14 diaphragm valve features improved body to bonnet sealing performance, visual position indication, weir design for excellent throttling capabilities and built in travel stop to prevent over-tightening and eliminate compressive strain. Bubble tight sealing can be achieved even in tough applications containing suspended particles or slurrys. The Type-14 diaphragm valve features a layered EPDM/PTFE diaphragm which can accept the addition of a PVDF gas barrier for aggressive chemicals such as Sodium Hypochlorite which produces an off-gas that can permeate the PTFE layer, unlike laminated PTFE diaphragms which cannot accept a PVDF membrane and actually can become de-lamintated in this highly corrosive environment leading to a potentially hazardous situation.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-342 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-342 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Isolation and throttling valves
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The Type-14 diaphragm valve features improved body to bonnet sealing performance, visual position indication, weir design for excellent throttling capabilities and built in travel stop to prevent over-tightening and eliminate compressive strain. Bubble tight sealing can be achieved even in tough applications containing suspended particles or slurrys. The Type-14 diaphragm valve features a layered EPDM/PTFE diaphragm which can accept the addition of a PVDF gas barrier for aggressive chemicals such as Sodium Hypochlorite which produces an off-gas that can permeate the PTFE layer, unlike laminated PTFE diaphragms which cannot accept a PVDF membrane and actually can become de-lamintated in this highly corrosive environment leading to a potentially hazardous situation.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-342 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-342 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Isolation and throttling valves
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
Proven in the field for more than 20 years, Enpure high-purity polypropylene piping systems eliminate the potential for contamination during the conveyance of ultra-pure liquids in facilities such as industrial, hospital and university laboratories, as well as electronics, pharmaceutical and cosmetics manufacturing plants. Enpure high-purity pipe is manufactured from FDA-approved, natural, virgin polypropylene and copolymer that can handle corrosive liquids at temperatures from 0°-200°F. Because Enpure components are designed as an integrated socket fusion system, no contaminants are created in joining, and making connections as clean as any other part of the system. A comprehensive range of pipe, valves and fittings is available in Schedule 40 and Schedule 80 nominal bore sizes from ¼-4. On a pressurized application, threaded connections should not be used. Under no circumstances should Enpure be pressure tested with compressed air or other comprehensible gases.
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
The Type-14 diaphragm valve features improved body to bonnet sealing performance, visual position indication, weir design for excellent throttling capabilities and built in travel stop to prevent over-tightening and eliminate compressive strain. Bubble tight sealing can be achieved even in tough applications containing suspended particles or slurrys. The Type-14 diaphragm valve features a layered EPDM/PTFE diaphragm which can accept the addition of a PVDF gas barrier for aggressive chemicals such as Sodium Hypochlorite which produces an off-gas that can permeate the PTFE layer, unlike laminated PTFE diaphragms which cannot accept a PVDF membrane and actually can become de-lamintated in this highly corrosive environment leading to a potentially hazardous situation.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-342 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-342 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Isolation and throttling valves
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
Proven in the field for more than 20 years, Enpure high-purity polypropylene piping systems eliminate the potential for contamination during the conveyance of ultra-pure liquids in facilities such as industrial, hospital and university laboratories, as well as electronics, pharmaceutical and cosmetics manufacturing plants. Enpure high-purity pipe is manufactured from FDA-approved, natural, virgin polypropylene and copolymer that can handle corrosive liquids at temperatures from 0°-200°F. Because Enpure components are designed as an integrated socket fusion system, no contaminants are created in joining, and making connections as clean as any other part of the system. A comprehensive range of pipe, valves and fittings is available in Schedule 40 and Schedule 80 nominal bore sizes from ¼-4. On a pressurized application, threaded connections should not be used. Under no circumstances should Enpure be pressure tested with compressed air or other comprehensible gases.
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The Type-14 diaphragm valve features improved body to bonnet sealing performance, visual position indication, weir design for excellent throttling capabilities and built in travel stop to prevent over-tightening and eliminate compressive strain. Bubble tight sealing can be achieved even in tough applications containing suspended particles or slurrys. The Type-14 diaphragm valve features a layered EPDM/PTFE diaphragm which can accept the addition of a PVDF gas barrier for aggressive chemicals such as Sodium Hypochlorite which produces an off-gas that can permeate the PTFE layer, unlike laminated PTFE diaphragms which cannot accept a PVDF membrane and actually can become de-lamintated in this highly corrosive environment leading to a potentially hazardous situation.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-342 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-342 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Isolation and throttling valves
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The diaphragm valve offers many combinations of body materials and elastomeric diaphragm materials. The valve design is abrasion-resistant and non-clogging. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has a smooth, streamlined flow. Slurries at low pressure that would normally clog most other valve designs easily pass through a diaphragm valve. The bonnet and working parts are completely isolated from the line fluid and only the body and diaphragm materials must be considered for service compatibility. The valve is a top-entry design, allowing in-line maintenance. The valve is suitable for throttling and ON/OFF service in applications ranging from water treatment to chemical abrasion processes. Diaphragm valves are operated manually, electrically, or pneumatically.
Proven in the field for more than 20 years, Enpure high-purity polypropylene piping systems eliminate the potential for contamination during the conveyance of ultra-pure liquids in facilities such as industrial, hospital and university laboratories, as well as electronics, pharmaceutical and cosmetics manufacturing plants. Enpure high-purity pipe is manufactured from FDA-approved, natural, virgin polypropylene and copolymer that can handle corrosive liquids at temperatures from 0°-200°F. Because Enpure components are designed as an integrated socket fusion system, no contaminants are created in joining, and making connections as clean as any other part of the system. A comprehensive range of pipe, valves and fittings is available in Schedule 40 and Schedule 80 nominal bore sizes from ¼-4. On a pressurized application, threaded connections should not be used. Under no circumstances should Enpure be pressure tested with compressed air or other comprehensible gases.
PolyPure® natural polypropylene systems provide excellent high purity performance and cost effective installation. PolyPure® systems are specified and installed with confidence for a variety of high purity applications. For branches and laterals, the T-343 zero dead leg diaphragm valves (ZDL's) eliminate dead space where bacteria can grow. Valves are cleanroom produced, assembled and packaged. All valves come standard with integral lock out device to prevent unauthorized cycling. Integral locking handle can be locked in multiple positions to prevent unauthorized cycling. The locking handle is spring loaded for easy locking and unlocking. Position indication for 25%, 50% and 75% open positions. T-343 diaphragm valves can be supplied with a complete line of pneumatic actuation, electric controllers, manual overrides, mechanical limitors & position indicators. Valves are 150 psi rated at 68° F and designed for high temperature service. The T-343 diaphragm valve is fully serviceable and is ideal for use in the following applications:
- Lateral/branch isolation
- UPW, WFI and RO/DI systems
- Semiconductor
- Photovoltaic
- Pharmaceutical
- Biotech
- Institutional
- Laboratory research
- Nanotech
The Type-14 diaphragm valve features improved body to bonnet sealing performance, visual position indication, weir design for excellent throttling capabilities and built in travel stop to prevent over-tightening and eliminate compressive strain. Bubble tight sealing can be achieved even in tough applications containing suspended particles or slurrys. The Type-14 diaphragm valve features a layered EPDM/PTFE diaphragm which can accept the addition of a PVDF gas barrier for aggressive chemicals such as Sodium Hypochlorite which produces an off-gas that can permeate the PTFE layer, unlike laminated PTFE diaphragms which cannot accept a PVDF membrane and actually can become de-lamintated in this highly corrosive environment leading to a potentially hazardous situation.