Valve Diaphragms

At Diatax we manufacture diaphragms suitable for more than 100 different types of valves including all major Valve brands in the world.

OEM & Custom Solutions

Custom Industrial Valve Diaphragms for Global OEMs

At Diatax we engineer and manufacture high-performance valve diaphragms for the world's most demanding industrial applications. From continuous-modulating diaphragms for control valves to high-cycle dust collectors, Pressure regulators and Releif Valves. our diaphragms are precision-molded to match original equipment manufacturer (OEM) specifications for flawless fit, extended flex life, and chemical resistance.

While we manufacture custom, long-lasting elastomeric solutions directly for OEM production lines, we also manufacture a comprehensive catalog of premium aftermarket replacements engineered to match the original factory dimensions of leading industrial valve brands.

Actuator & Control Diaphragms

Actuator Valve Diaphragms | Control Valve Diaphragms

Diatax manufactures precision fabric-reinforced actuator valve diaphragms for high-performance pneumatic control valves. Whether you require custom-engineered membranes for a new OEM valve design or precision drop-in aftermarket replacements for legacy systems, our compression and injection molding expertise ensures zero-leakage modulation, linear travel, and exceptional cycle life.

OEM Customise Actuator diaphragm
OEM Customise Actuator Diaphragm

OEM Customisation:

Custom Design and Tooling, Customised rubber and fabric materials as per requirement, OEM Markings and Branding on the diaphragms and mold engravings.

Key Features:

Fabric perfectly centred between 2 layers of rubber, Deep-convolution rolling designs without any fabric wrinkles, high-burst strength fabric reinforcement (Nylon/Kevlar/Polyester), and low-hysteresis rubber compounds.

Materials:

Nitrile (NBR), Fluorelastomer (FKM), Neoprene (CR), EPDM, and Silicone and Fluorosilicone for extreme temperatures.

100% Compatible Aftermarket Actuator Diaphragms -

Fisher, Masonelian, Samson, CCI, CV, ARI, KOSO.

Control Valve Diaphragms
Control Valve Diaphragms
Fisher 657 Actuator Diaphragm
Fisher 657 Actuator Diaphragm
Masoneilan type 87_88 Actuator Diaphragm
Masoneilan type 87_88 Actuator Diaphragm
Samson type 3271 Actuator Diaphragm
Samson type 3271 Actuator Diaphragm
EXPLORE ACTUATOR DIAPHRAGMS
Dust Collector & Pulse Jet

Dust Collector Valve Diaphragms | Pulse Jet Valve Diaphragms

Designed for the explosive, high-cycle demands of reverse pulse baghouse cleaning, our dust collector diaphragms deliver rapid response times and maximum peak pulse pressure.

Diatax is an engineering and manufacturing partner specializing in high-performance pulse jet valve diaphragms for baghouse dust collection systems. We support global Original Equipment Manufacturers (OEMs) with custom-molded elastomeric membranes, while also supplying complete, direct-fit replacement kits for leading aftermarket dust collector valve brands.

OEM Customisation:

In-House Quality Control & Testing, Custom Rubber Compounding & Fabric Reinforcement, Complete Integrated Diaphragm Assembly including Riveting and Diaphragm Fittings, Rapid Tooling & Prototype Mold Design.

Key Features:

Drop-in replacement kits (including springs and seats), engineered to prevent flex cracking and chemical degradation from flue gases.

Materials:

Standard Nitrile (NBR) for general dust, Viton® (FKM) for high-temperature/acidic environments, and Low-Temp Nitrile and PTFE diaphragms.

100% Compatible Aftermarket Diaphragm Repair Kits -

Asco, Goyen, Mecair, Turbo, Autel.

ASCO C113825 353 series pulse valve diaphragm repair kit SCG353A043 Replacement
ASCO C113825 353 Series Pulse Valve Diaphragm Repair Kit SCG353A043 Replacement
Asco C113827 Replacement Diaphragm Kit for ASCO SCG353A044 Dust Collector Valve
Asco C113827 Replacement Diaphragm Kit for ASCO SCG353A044 Dust Collector
Valve
Goyen K2500 K2501 K2503 Goyen K2500 K2501 K2503 Nitrile Diaphragm Repair Kit for 1-inch Pulse Jet Valve
Goyen K2500 K2501 K2503 Goyen K2500 K2501 K2503 Nitrile Diaphragm Repair Kit for 1-inch Pulse Jet Valve
Goyen K4502 K4503 Goyen Replacement Diaphragm Repair Kit for RCA45T Pulse Valve
Goyen K4502 K4503 Goyen Replacement Diaphragm Repair Kit for RCA45T Pulse Valve
Goyen K7600 K7601 3-inch Dust Collector Pulse Valve Diaphragm Kit
Goyen K7600 K7601 3-inch Dust Collector Pulse Valve Diaphragm Kit
Mecair DB114 Replacement Pulse Valve Diaphragm Kit for VEM214
Mecair DB114 Replacement Pulse Valve Diaphragm Kit for VEM214
Mecair DB116 2-inch Diaphragm Repair Kit for VNP216 Pulse Valve
Mecair DB116 2-inch Diaphragm Repair Kit for VNP216 Pulse Valve
EXPLORE DUST COLLECTOR DIAPHRAGMS
Process & Sanitary Diaphragm Valves

Process & Sanitary Diaphragm Valves

Manufactured for media isolation in chemical processing, pharmaceuticals, food/beverage, and water treatment. We provide solutions for both Weir-Type (Saddle) and Straight-Through (Full-Bore) valve bodies.

Our manufacturing facilities specialize in solving the most complex challenges in sanitary valve operation: preventing PTFE delamination, ensuring hygienic sealing during CIP/SIP (Clean-In-Place / Steam-In-Place) cycles, and securely anchoring valve stem inserts

OEM Customisation:

Custom Diaphragm Insert and Studs, Custom materials for critical media.

Key Features:

Unbreakable PTFE to Rubber Bonding , FDA-compliant materials, zero dead-leg designs, and heavy-duty threaded stud inserts for secure stem attachment.

Materials:

PTFE-faced (Teflon) with EPDM backing, pure EPDM, and Viton®.

100% Compatible Aftermarket Diaphragm Repair Kits -

Saunders, ITT Dia-Flo, Gemü, Bürkert, Swagelok.

Gemu Diaphragm DN15 Replacement EPDM Diaphragm Code 17 for Gemu 600 Series Sanitary Valves
Gemu Diaphragm DN15 Replacement EPDM Diaphragm Code 17 for Gemu 600 Series Sanitary Valves
Gemu Diaphragm DN50 Gemu Code 54 PTFE and EPDM Replacement Diaphragm with Threaded Insert
Gemu Diaphragm DN50 Gemu Code 54 PTFE and EPDM Replacement Diaphragm with Threaded Insert
PTFE Bonded Replacement Diaphragm for Saunders Type A Process Valve
PTFE Bonded Replacement Diaphragm for Saunders Type A Process Valve
Saunders Type A weir style Replacement Diaphragm in EPDM Rubber
Saunders Type A weir style Replacement Diaphragm in EPDM Rubber
PTFE EPDM Gemu Diaphragm DN8 Actual New
PTFE EPDM Gemu Diaphragm DN8 Actual New
EXPLORE PROCESS & SANITARY DIAPHRAGMS
Pressure Regulator & Relief Valve Diaphragms

Pressure Regulator Diaphragms & Relief Valve Diaphragms

Diatax manufactures ultra-sensitive, high-durability elastomeric diaphragms for pressure reducing valves (PRVs), gas regulators, and safety relief systems. Through advanced compression molding and custom rubber compounding, we engineer specialized diaphragms that deliver precise pressure modulation, zero gas permeability, and long-term stability for both OEM production lines and legacy aftermarket replacements.

OEM Customisation:

Customised EN549 Gas Compliance Materials, Specialised diaphragms for 2 Stage Gas Reducers, Centred Fabric Encapsulation

Key Features:

4 Fabric Insert for High Pressure Regulators ,Ultra-thin Diaphragms for Low pressure regulators, highly sensitive flat and convoluted designs for precise pressure regulation.

Materials:

Fabric-reinforced Nitrile, fluorosilicone for gas applications, and chloroprene. Silicone for Medical Applications.

100% Compatible Aftermarket Diaphragm -

Fisher, Mooney Baker Hughes, Cash Acme.

Gas Regulator Diaphragm
Gas Regulator Diaphragm
Relief Valve Diaphragm
Relief Valve Diaphragm
Explore Pressure Regulator & Relief Diaphragms
Manufacturing & Compounding Expertise

Our Manufacturing & Compounding Expertise

We don't just sell parts; we manufacture them. By controlling the entire production process, we guarantee the quality of every membrane that leaves our facility.

Capability What This Means for You
Custom Rubber Compounding We formulate specific elastomers (NBR, FKM, EPDM, Silicone) to resist your exact line media, whether it's abrasive cement dust, caustic chemicals, or high-pressure steam.
Precision Compression Molding Our state-of-the-art compression presses ensure uniform curing and precise dimensional tolerances, critical for seating and sealing.
Fabric Reinforcement We integrate high-tensile fabrics (Nylon, Nomex, Kevlar/Aramid) into the rubber matrix to prevent burst failures under high pressure.
Custom Tooling & Design Need a diaphragm for an obsolete or proprietary valve? We can reverse-engineer your sample or work from your CAD drawings to create custom molds.
Technical FAQ

Technical FAQ: Industrial Valve Diaphragms

The optimal elastomer depends entirely on your system's media, pressure, and temperature. For general fluid control and water applications, EPDM offers excellent weather and steam resistance. For oil, fuel, and petrochemical valves, we utilize Nitrile (NBR). When extreme chemical resistance is required, we manufacture PTFE-faced (Teflon) rubber diaphragms that combine the chemical inertness of PTFE with the flexibility of a rubber backing.

Yes, Diatax specializes in partnering with global OEMs to engineer custom sealing solutions. We can manufacture custom molded rubber diaphragms built exactly to your proprietary CAD drawings and dimensional tolerances. From prototyping to high-volume production, we support manufacturers across the USA and Europe.

For high-stress applications like dust collector valve diaphragms and heavy-duty actuator diaphragms, we utilize a fabric-reinforced manufacturing process. By vulcanizing a high-strength technical textile (such as nylon, polyester, or Nomex) within the elastomer, we drastically increase the burst strength and tear resistance of the diaphragm without sacrificing flexibility.

Absolutely. While we are a primary supplier for original equipment manufacturers, we also produce a comprehensive catalog of aftermarket replacement diaphragms. Whether you are servicing pneumatic control valves, fluid handling systems, or pressure regulator and relief valve diaphragms, our aftermarket parts meet or exceed original OEM specifications.

Yes. For complex valve assemblies, we engineer rubber-to-metal bonded diaphragms. Bonding the elastomer directly to a metal insert, stud, or piston during the molding process reduces assembly time for OEMs, eliminates leak paths, and creates a stronger, more reliable mechanical connection in high-pressure environments.

Process and sanitary valve diaphragms require strict adherence to hygiene standards to prevent contamination in food, beverage, and pharmaceutical manufacturing. We engineer these diaphragms using FDA-compliant elastomers (like food-grade Silicone or EPDM) and PTFE. They are designed with smooth, crevice-free surfaces to ensure clean-in-place (CIP) and sterilize-in-place (SIP) compatibility.
Inquiry