DIAPHRAGM VALVES | TRUSTED WORLDWIDE

Available at Alpha Process Sales - Louisiana

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Tru-Tech Valve offers solutions for the critical containment of abrasive slurries and corrosive fluids for many industries. We are a premier supplier of valves and actuators that are internationally recognized for quality, durability, and performance.

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TRU-TECH VALVE FEATURED PRODUCT

RO DIAPHRAGM VALVE

Reverse osmosis (RO) is a water purification technology that uses a partially permeable membrane to remove ions, molecules and larger particles from drinking water. In reverse osmosis, an applied pressure is used to overcome osmotic pressure, a colligative property, that is driven by chemical potential differences of the solvent, a thermodynamic parameter. Reverse osmosis can remove many types of dissolved and suspended chemical species as well as biological ones (principally bacteria) from water, and is used in both industrial processes and the production of potable water. The result is that the solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side.

On the filtered water side, the valve application is a high-purity water application and on the effluent side, the application includes suspended solids. Both of these are ideal applications for Diaphragm valves.

Applications

  • High-purity water

  • Effluent Streams/control

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Pneumatic Acutators

Electric Actuators
Electric Actuators

Tru-Tech’s Diaphragm Valves are designed to work with all makes and models of electric actuators in the market. The valves can be factory installed with 3rd party electric actuators or can be provided with bare stem for OEM or field actuator installation.

Straight Through Diaphragm Valve (Tru-Fl
Straight Through Diaphragm Valve (Tru-Fl

The Tru-Flow Straight Thru Diaphragm Valve is designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps.

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pneumatic-actuator-features

Pneumatic Acutators

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STRAIGHT THROUGH DIAPHRAGM VALVES

This type of diaphragm valve is also often referred to as full bore diaphragm valve. In this design, the diaphragm seals over a seat. Due to their unique design, these valves provide full flow capability with minimum pressure drop. These valves are typically applied for on-off service. Tru-Tech’s straight-thru diaphragm valve is available in two configurations, namely Tru-Flow compatible with MSS-SP88 and Maxi-Flow compatible with ANSI B16.10.
Straight Through Diaphragm Valve (Tru-Flow)

​The Tru-Flow Straight Thru Diaphragm Valve is designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps.

  • Designed for higher operating pressures than the competition (125 to 200 PSIG)

  • Compact design conforming to conform to ASME/ANSI B16.10. interchangeable with most solid wedge, double disc, and resilient wedge gate valves as well as short pattern plug and ball valves.

  • Ductile Iron construction, as opposed to cast iron, reduces damage from wear and tear and improves long-term reliability.

  • Tru-Flow body and Duo-Flex diaphragm are designed to provide streamlined laminar flow profiles of a Venturi with minimal change in incremental cross sectional area, resulting in minimum pressure drop

  • Unique body design results in shorter stroke, reducing diaphragm stress and providing longer life

  • By design, Tru-Flow delivers zero fugitive emissions. Additionally, sealed bonnet is also available as an option

  • The Duo-Flex diaphragm can easily be replaced in line. The straight through design also facilitates the use of brushes or rods to clean the valve.

  • Double-studded diaphragm, v/s single-studded, deliver better seal and longer life

  • Standard TGIC Polyester powder coating

  • Standard Rising Stem, Travel Stop Nut, and Stem Cover for Manual Valves

  • Standard Adjustable Travel Stops on all Pneumatic Actuated Valves

  • Standard Adjustable Closing Stops on all Pneumatic Operated Valves

  • Wide range of valve body materials, coatings/linings and diaphragm material 

Straight Through Diaphragm Valve (Maxi-Flow)

The Maxi-Flow Straight Thru Diaphragm Valve is designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps.​

  • Designed for higher operating pressures than the competition (125 to 200 PSIG)

  • Compact design conforming to conform to MSS SP-88, fully interchangeable with most diaphragm valves in the market

  • Ductile Iron construction, as opposed to cast iron, reduces damage from wear and tear and improves long-term reliability.

  • Maxi-Flow body and Duo-Flex diaphragm are designed to provide streamlined laminar flow profiles of a Venturi with minimal change in incremental cross sectional area, resulting in minimum pressure drop

  • Unique body design results in shorter stroke, reducing diaphragm stress and providing longer life

  • By design, Maxi-Flow delivers zero fugitive emissions. Additionally, sealed bonnet is also available as an option

  • The Duo-Flex diaphragm can easily be replaced in line. The straight thru design also facilitates the use of brushes or rods to clean the valve.

  • Double-studded diaphragm, v/s single-studded, deliver better seal and longer life

  • Standard TGIC Polyester powder coating

  • Standard Rising Stem, Travel Stop Nut, and Stem Cover for Manual Valves

  • Standard Adjustable Travel Stops on all Pneumatic Actuated Valves

  • Standard Adjustable Closing Stops on all Pneumatic Operated Valves

  • Wide range of valve body materials, coatings/linings and diaphragm material ​

Straight Through Diaphragm Valve (Tru-Fl
Straight Through Diaphragm Valve (Maxi-F
 

WEIR DIAPHRAGM VALVES

In this type of diaphragm valve, the diaphragm seals against a Weir or Saddle. These valves are typically applied in throttling control applications. The TruTech enhanced weir valve is designed to minimize pressure drop and provide laminar flow characteristics of Straight Through valves.
Weir Diaphragm Valve (Tru-Trol)

​The Tru-Trol Enhanced Weir type Diaphragm Valve is designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps, while at the same time providing laminar flow characteristics of Straight Through diaphragm valves.

  • Designed for higher operating pressures than the competition (125 to 200 PSIG)

  • Compact design conforming to conform to ASME/ANSI B16.10. interchangeable with most solid wedge, double disc, and resilient wedge gate valves as well as short pattern plug and ball valves.

  • Ductile Iron construction, as opposed to cast iron, reduces damage from wear and tear and improves long-term reliability.

  • Tru-Trol body and Duo-Flex diaphragm are designed to provide streamlined laminar flow profiles of a Venturi with minimal change in incremental cross sectional area, resulting in minimum pressure drop

  • Unique body design results in shorter stroke, reducing diaphragm stress and providing longer life

  • By design, Tru-Trol delivers zero fugitive emissions. Additionally, sealed bonnet is also available as an option

  • The Duo-Flex diaphragm can easily be replaced in line. The straight through design also facilitates the use of brushes or rods to clean the valve.

  • Double-studded diaphragm, v/s single-studded, deliver better seal and longer life

  • Standard TGIC Polyester powder coating

  • Standard Rising Stem, Travel Stop Nut, and Stem Cover for Manual Valves

  • Standard Adjustable Travel Stops on all Pneumatic Actuated Valves

  • Standard Adjustable Closing Stops on all Pneumatic Operated Valves

  • Wide range of valve body materials, coatings/linings and diaphragm material

Weir Diaphragm Valve (Maxi-Trol)

The Maxi-Trol Enhanced Weir Diaphragm Valve is designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps, while at the same time providing laminar flow characteristics of Straight Through diaphragm valves.

  • Designed for higher operating pressures than the competition (125 to 200 PSIG)

  • Compact design conforming to conform to MSS SP-88, fully interchangeable with most diaphragm valves in the market

  • Ductile Iron construction, as opposed to cast iron, reduces damage from wear and tear and improves long-term reliability.

  • Maxi-Trol body and Duo-Flex diaphragm are designed to provide streamlined laminar flow profiles of a Venturi with minimal change in incremental cross sectional area, resulting in minimum pressure drop

  • Unique body design results in shorter stroke, reducing diaphragm stress and providing longer life

  • By design, Maxi-Trol delivers zero fugitive emissions. Additionally, sealed bonnet is also available as an option

  • The Duo-Flex diaphragm can easily be replaced in line. The straight through design also facilitates the use of brushes or rods to clean the valve.

  • Double-studded diaphragm, v/s single-studded, deliver better seal and longer life

  • Standard TGIC Polyester powder coating

  • Standard Rising Stem, Travel Stop Nut, and Stem Cover for Manual Valves

  • Standard Adjustable Travel Stops on all Pneumatic Actuated Valves

  • Standard Adjustable Closing Stops on all Pneumatic Operated Valves

  • Wide range of valve body materials, coatings/linings and diaphragm material

Weir Diaphragm Valve (Maxi-Trol).jpg
Weir Diaphragm Valve (Tru-Trol).jpg
 

LONG & SHORT BODY DIAPHRAGM VALVES

MSS SP-88 (Long Body) Diaphragm Valve

Tru-Tech Diaphragm Valves are designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps, while at the same time providing laminar flow characteristics. The MSS SP-88 line of valves include the Maxi-Flow, Straight-Through valve and the Maxi-Trol, Enhanced Weir Valve.

  • Designed for higher operating pressures than the competition (125 to 200 PSIG)

  • Compact design conforming to conform to MSS SP-88, fully interchangeable with most diaphragm valves in the market

  • Ductile Iron construction, as opposed to cast iron, reduces damage from wear and tear and improves long-term reliability.

  • Tru-Tech Valve body and Duo-Flex diaphragm are designed to provide streamlined laminar flow profiles of a Venturi with minimal change in incremental cross sectional area, resulting in minimum pressure drop

  • Unique body design results in shorter stroke, reducing diaphragm stress and providing longer life

  • By design, Tru-Tech Valves deliver zero fugitive emissions. Additionally, sealed bonnet is also available as an option

  • The Duo-Flex diaphragm can easily be replaced in line. The straight through design also facilitates the use of brushes or rods to clean the valve.

  • Double-studded diaphragm, v/s single-studded, deliver better seal and longer life

  • Standard TGIC Polyester powder coating

  • Standard Rising Stem, Travel Stop Nut, and Stem Cover for Manual Valves

  • Standard Adjustable Travel Stops on all Pneumatic Actuated Valves

  • Standard Adjustable Closing Stops on all Pneumatic Operated Valves

  • Wide range of valve body materials, coatings/linings and diaphragm material

ANSI B16.10 (Short Body) Diaphragm Valve

Tru-Tech Diaphragm Valves are designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps, while at the same time providing laminar flow characteristics. The ANSI B16.10 line of valves include the Tru-Flow, Straight-Through valve and the Tru-Trol, Enhanced Weir Valve.

  • Designed for higher operating pressures than the competition (125 to 200 PSIG)

  • Compact design conforming to conform to ASME/ANSI B16.10. interchangeable with most solid wedge, double disc, and resilient wedge gate valves as well as short pattern plug and ball valves.

  • Ductile Iron construction, as opposed to cast iron, reduces damage from wear and tear and improves long-term reliability.

  • Tru-Tech Valve body and Duo-Flex diaphragm are designed to provide streamlined laminar flow profiles of a Venturi with minimal change in incremental cross sectional area, resulting in minimum pressure drop

  • Unique body design results in shorter stroke, reducing diaphragm stress and providing longer life

  • By design, Tru-Tech Valves deliver zero fugitive emissions. Additionally, sealed bonnet is also available as an option

  • The Duo-Flex diaphragm can easily be replaced in line. The straight through design also facilitates the use of brushes or rods to clean the valve.

  • Double-studded diaphragm, v/s single-studded, deliver better seal and longer life

  • Standard TGIC Polyester powder coating

  • Standard Rising Stem, Travel Stop Nut, and Stem Cover for Manual Valves

  • Standard Adjustable Travel Stops on all Pneumatic Actuated Valves

  • Standard Adjustable Closing Stops on all Pneumatic Operated Valves

  • Wide range of valve body materials, coatings/linings and diaphragm material

ANSI B16.10 (Short Body) Diaphragm Valve
MSS SP-88 (Long Body) Diaphragm Valve.jp
 

DIAPHRAGM VALVES BODY OPTIONS

Diaphragm Valve Body Options

Diaphragm Valves are designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps. Tru-Tech’s diaphragm valves are specifically designed to handle higher pressure and impose the least amount of pressure drop with a more laminar flow pattern. Diaphragm Valves are ideally suited for chemical, acid and base applications with the appropriate selection of body materials, lining and diaphragm materials.

  • Cast Iron: A general‐purpose material suitable for water, air, petroleum products, most solvents, dry powders, and a wide variety of chemicals when used in the unlined state. This can also be lined with various rubbers and plastics to handle almost any process media.

  • Ductile Iron: A general‐purpose material with usage similar to cast iron. Ductile iron however is much stronger and more capable where there may be high pipeline stresses, danger from impact, or concern from leakage upon line or valve fracture. Normally, ductile iron can be used as a direct replacement for steel valves. Can be lined with a wide variety of rubbers and/or plastics to handle almost any process media.

  • Steel: Another general­‐purpose material that is somewhat resistant to corrosion then cast iron especially where water is the media. Steel is much stronger and like ductile iron much more capable where there may be high pipeline stress, danger from impact, or concern from leakage upon line or valve fracture. Can be lined with a wide variety of rubbers and/or plastics to handle almost any media.

  • Stainless Steel: An alloy of iron, carbon, nickel, and chromium. Suitable for most foods, beverages, pharmaceuticals, solvents, sea water, oils, and some acids and alkalis.

  • Alloy 20: Has higher amounts of nickel and chromium then 300 series stainless steels. It is mores resistant to sulfuric acid and is used widely in chemical processing and water treatment

  • Bronze: Has a higher strength than pure copper. It is generally accepted as an industry standard for pressure rated valves and fittings. It is very resistant to pitting corrosion, with general resistance to most chemicals.

Diaphragm Valve Lining Options

Diaphragm Valves are designed for leak-proof control of abrasive and corrosive liquids, suspensions, slurries, and pulps. Tru-Tech’s diaphragm valves are specifically designed to handle higher pressure and impose the least amount of pressure drop with a more laminar flow pattern. Diaphragm Valves are ideally suited for chemical, acid and base applications with the appropriate selection of body materials, lining and diaphragm materials.

  • SOFT NATURAL RUBBER: Good in either wet or dry abrasive services, water, and some acids and alkalis. Soft natural rubber has one of the best abrasion resistances when strong chemicals are not present. Temperature ‐30 to 180°F

  • GRAPHITE BASED HARD RUBBER: Graphite hard rubber has a good chemical resistance and at higher temperatures than the normal hard and soft natural rubbers. Max Temperature 250°F

  • EPDM: (Ethylene Propylene Diene Monomer) The most popular general­‐purpose material. Excellent chemical resistance to a wide variety of corrosive elements including acids, caustics and hot water. It is abrasion resistant and good for high temperature services. EPDM has poor oil resistance. It is also satisfactory for intermittent steam sterilization. Temp ‐30 to 300°F

  • NEOPRENE: Widely used in wastewater applications. A good choice for general-­‐purpose chemical resistance where the media contains entrained oils. It also resists aldehydes, certain alcohols, fertilizers, explosives, petroleum, air, acids alkalis, and is abrasive resistant. Finally, in most cases is interchangeable with Buna­‐N (Nitrile) Rubber. Temperature -‐30 to 200°F

  • BUNA-‐N: (Nitrile Butadiene Rubber) is a general‐purpose oil resistant polymer known as nitrile rubber. It is a copolymer of butadiene and acrylonitrile. Buna‐N has a good solvent, oil, water, and hydraulic fluid resistance. It displays good compression set, abrasion resistance, and tensile strength. Nitrile should not be used in highly polar solvents such as acetone and methyl ethyl ketone, nor should it be used in chlorinated hydrocarbons, ozone, or nitro hydrocarbons. In most cases it is interchangeable with Neoprene. Max Temperature 275°F

  • BUTYL: A good choice for gases because it has a very low vapor and gas permeability. Also good for many acids and alkalis. Good for applications involving steam sterilization. Temperature ­‐20 to +250°F

  • CHLOROBUTYL: Chlorobutyl has excellent abrasion and corrosion resistant properties. The maximum recommended temperature for Chlorobutyl is 180°F.

  • POLYPROPYLENE: A general purpose lining with good chemical and temperature resistance. Utilized for water treatment, chemical processing, most plating fluids, and steel mill pickling lines, foodstuff, and drinking water. Temp: ­‐10 to +200°F

  • ECTFE (HALAR): (Ethylene Chlorotrifluoroethylene) Excellent wear and abrasion qualities, excellent corrosion resistance, low coefficient of friction, and excellent electrical properties. Maximum use temperature 350°F

  • ETFE (TEFZEL): (Ethylene Tetrafluoroethylene) Outstanding resistance to chemicals and strong acids. Also has high abrasion resistance for tough services. Below 350°F has no known solvent.

  • PTFE (XYLAN): (Polytetrafluoroethylene) Good wear resistance, low coefficient of friction, and fair corrosion resistance. Use Temperature 450­‐500°F

  • PFA: (Perfluoroalkoxy) Good wear and abrasion qualities, excellent corrosion resistance, low coefficient of friction, and excellent release capabilities. Max use temperature 525°F

  • PVDF (KYNAR): (Polyvinylidene Fluoride) Offers very low permeability. A strong, tough abrasion resistant fluorocarbon material resistant to most acids, bases, and organic solvents. It is ideally suited to handling wet or dry chlorine, bromine, and other halogens. Temperature ‐10 to +275°F.

  • FEP: (Fluorinated Ethylene Propylene) Good wear and abrasion qualities, excellent corrosion resistance, low coefficient of friction, and excellent release characteristics. Max use temperature 400°F

  • VITON: Offers exceptional resistance to oils, most chemicals and many solvents at elevated temperatures. It can be used in most applications involving mineral acids, salt solutions and chlorinated hydrocarbons. Viton is not recommended for ammonia, its derivatives or polar solvents, e.g. Acetone. ­‐20 to 300°F

  • BLUE GLASS (CHEM): Intended for viscous chemical applications such as wastewaters where a smooth lining is necessary to prevent process media from sticking to the walls of the valve.

  • GREEN GLASS (NON‐CHEM): Intended for non-­‐chemical applications such as wastewaters where a smooth lining is necessary to prevent viscous fluids from sticking to the walls.

  • POLYURETHANE: Polyurethane has excellent abrasion resistance. Temperature ­‐30‐150°F

  • FDA EPOXY: Good wear and abrasion qualities, good corrosion resistance. Max use temperature 212°F.

  • PVC: PVC has resistance to a variety of chemicals including oxidizing acids and provides excellent abrasion resistance. Max use temperature 160°F.

  • HARD RUBBER: Hard rubber is a good general chemical resistant lining that can be used in higher temperatures than its soft counterpart. Temperature ­‐30 to 200°F

 

DIAPHRAGM VALVES OPTIONS

Ethylene Propylene (EPDM) Diaphragm Valve

Temperature Range: -30 to 300 Deg F

  • EPDM is the most popular general purpose material. It possesses excellent chemical resistance to a wide variety of corrosive elements including acids, caustics, and hot water. EPDM is abrasion resistant, good for high temperature service, and is satisfactory for intermittent steam sterilization, but has poor oil resistance.

Neoprene (CR) Diaphragm Valve

Temperature Range: -20 to 200 Deg F

  • Neoprene is widely used in wastewater applications. It is a good choice for general purpose chemical resistance where the media contains entrained oils. It is abrasion resistant, and also resists aldehydes, certain alcohols, fertilizers, explosives, petroleum, air, acids, and alkalis.

Soft Natural Rubber (NR) Diaphragm Valve

Temperature Range: -30 to 180 Deg F

  • Soft Natural Rubber is good in either wet or dry abrasive services, water, and some acids and alkalis. It has one of the best abrasion resistances when strong chemicals are not present.

Viton (FKM) Diaphragm Valve

Temperature Range: -20 to 300 Deg F

  • Viton offers exceptional resistance to oils, most chemicals, and many solvents at elevated temperatures. It can be used in most applications involving mineral acids, salt solutions, and chlorinated hydrocarbons. Viton is not recommended for ammonia, its derivatives, or polar solvents, e.g. acetone.

Teflon (TFE) Diaphragm Valve

Temperature Range: -30 to 300 Deg F

  • TFE is the most chemical resistant of all the diaphragm materials. It is good for handling strong acids, alkalis (caustics), and solvents. Because of its greater stiffness, it significantly increases required closing/sealing forces. TFE has a shorter working life than elastomer diaphragms and may require a larger actuator size on automatic valves.

Butyl Diaphragm Valve

Temperature Range: -20 to 250 Deg F

  • Butyl is a good choice for gases because it has very low vapor and gas permeability. It is also good for many acids, alkalis, and applications involving steam sterilization.

Buna-N Diaphragm Valve

Temperature Range: -30 to 275 Deg F

  • Buna-N is a general-purpose oil resistant polymer known as Nitrile Rubber. It is a copolymer of butadiene and acrylonitrile. Buna-N has good resistance to solvents, oil, water, and hydraulic fluid. It displays good compression set, abrasion resistance, and tensile strength. Buna-N should not be used in highly polar solvents such as acetone and methyl ethyl ketone, nor should it be used in chlorinated hydrocarbons, ozone, or nitro hydrocarbons. In most cases it is interchangeable with Neoprene.

Diaphragm valves are the ideal solution for applications in conveying corrosive, abrasive media, or media containing solids in suspension or in High-purity applications. Depending on the media, various body, body lining and diaphragm material options are available for chemical compatibility. The moving parts of a diaphragm valve are isolated from the media being conveyed resulting in durability and isolation. Further, diaphragm valves can be maintained in-line making them easy to maintain.
 

ACTUATORS

Electric Actuators

​Tru-Tech’s Diaphragm Valves are designed to work with all makes and models of electric actuators in the market. The valves can be factory installed with 3rd party electric actuators or can be provided with bare stem for OEM or field actuator installation. Some example of electric actuators that have been installed on Tru-Tech’s diaphragm valves are:

  • RCS

  • EIM

  • AUMA

  • ROTORK

 
 
 
 
 
 
 
Pneumatic Actuators
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