Diaphragm Valve Manufacturer & Exporter
MVS Valve is a leading manufacturer of Rubber Lined Diaphragm Valves, we are manufactured in accordance with best quality standards and are specifically designed to offer reliable and efficient fluid control in the most demanding industrial environments. These valves are suitable for handling corrosive, abrasive, and viscous fluids across various process industries.Weir Type Rubber Lined Diaphragm Valves, are engineered to deliver exceptional durability and performance under harsh conditions. These valves are designed in compliance with international quality standards, making them a preferred choice for flow control in chemical, mining, wastewater, and other corrosive fluid environments.Our valves are available with various lining and diaphragm combinations to make sure that compatibility with aggressive chemicals and process conditions. Whether you need Weir butyl rubber lined diaphragm valves for chemical resistance, or weir soft natural rubber lined diaphragm valves for gentle fluid handling, we have tailored solutions for every industry requirement.MVS also offers options such as weir hard ebonite rubber lined diaphragm valves, weir neoprene rubber lined diaphragm valves, and weir epdm rubber lined diaphragm valves, which cater to specific media handling and temperature needs. For industries that demand enhanced chemical resistance, our weir hypalon rubber lined diaphragm valves provide a reliable choice.A long side lined versions, we manufacture weir unlined diaphragm valves, including weir unlined stainless steel diaphragm valves, weir unlined carbon steel diaphragm valves, and weir unlined ductile iron diaphragm valves to serve general-purpose flow control requirements. We also offer configurations built to international specifications such as weir din standard unlined diaphragm valves and weir din standard rubber lined diaphragm valves. With the versatility of material choices, lining options, and compliance with DIN and ANSI standards, our WEIR-type diaphragm valves are the preferred solution for industries like chemical processing, mining, water treatment, and power generation. Their compact structure, robust sealing mechanism, and long service life ensure optimal performance with minimal maintenance.
MVS Straight Through Diaphragm Valves are engineered for highly demanding fluid control applications where maximum flow, reliability, and ease of maintenance are essential. Designed with a full bore opening, this diaphragm valve makes sure unrestricted flow, making it highly effective in handling viscous slurries, corrosive chemicals, and abrasive fluids. This valve design helps industries meet precise piping requirements while making sure long-term operational performance. The internal structure of the Straight Through Diaphragm Valve allows the flowing media to avoid contact with moving mechanical components, which dramatically increases the valve's lifespan and minimizes maintenance needs.To match varying process demands, MVS manufactures Straight Type Rubber Lined Diaphragm Valves using premium-quality materials and rubber linings. Depending on the application, we offer solutions such as Straight Type Butyl Rubber Lined Diaphragm Valves for strong chemical resistance, and Straight Type Soft Natural Rubber Lined Diaphragm Valves, ideal for applications requiring flexibility and smooth media passage. For highly abrasive conditions, Straight Type Ebonite Rubber Lined Diaphragm Valves deliver superior performance and extended durability. Where oil-resistance and moderate chemical compatibility are required, industries rely on Straight Type Neoprene Rubber Lined Diaphragm Valves. For high-temperature fluids and steam service, Straight Type EPDM Rubber Lined Diaphragm Valves are a proven choice.In industries requiring unlined options, Straight Through Unlined Diaphragm Valves are also widely used, especially in clean media systems. Straight Type Unlined Stainless Steel Diaphragm Valves are popular in food-grade and pharmaceutical settings, while Straight Type Unlined Carbon Steel Diaphragm Valves and Straight Type Unlined Ductile Iron Diaphragm Valves cater to general-purpose and water treatment sectors.MVS also provides diaphragm valves conforming to global dimensional standards, including Straight Type DIN Standard Unlined Diaphragm Valves and Straight Type DIN Standard Rubber Lined Diaphragm Valves, making sure compatibility and easy installation across international projects. Whether your requirement is for a Rubber Lined Diaphragm Valve for corrosive fluids or a durable Straight Through Diaphragm Valve suitable for continuous heavy-duty use, MVS delivers industry-trusted performance with every valve.
MVS Valve offers a high-performance Threaded Screwed End Diaphragm Valve designed for reliable operation in general-purpose industrial applications. Manufactured in a Weir Type design, this diaphragm valve is built with precision to ensure dependable flow control where threaded connections are required. It features BSPP threaded ends, making it ideal for compact pipelines and low-pressure systems where space and simplicity matter.This valve is constructed using Ductile Iron GGG40 coated with durable black epoxy, ensuring enhanced corrosion resistance and longer service life. The handwheel-operated mechanism allows for smooth manual operation, and the valve includes a visible yellow position indicator for better user control. The flow is regulated using a flexible EPDM or Neoprene rubber diaphragm, which provides a secure shutoff and reduces the risk of leakage even in extended usage conditions.The Threaded Screwed End Diaphragm Valve uses a seatless internal design with a bolted bonnet, ensuring ease of maintenance and minimizing replacement downtime. It’s simple linear motion and dependable performance make it a preferred choice in industries that handle non-aggressive fluids, including utilities, water distribution, process systems, and general fluid transfer setups.At MVS Valve, we supply Weir Screwed End Cast Ductile Iron Diaphragm Valves, Weir Screwed End Stainless Steel Diaphragm Valves, and Weir Unlined Threaded End Diaphragm Valves, offering versatile material options based on the chemical nature of the media. Whether you need a diaphragm valve for a new installation or a replacement in an existing system, our screwed-end solutions are built to deliver consistent results with minimal upkeep.
MVS Valve offers highly reliable Spare Weir Type Diaphragms designed for consistent performance and extended service life across a wide range of industrial diaphragm valves. Our diaphragms are engineered for maximum durability and compatibility, ensuring smooth operation even in the most demanding flow control environments. These replacement spare rubber diaphragms weir type components are tested to withstand harsh operating conditions with minimal maintenance.At MVS, we understand the importance of quality replacement components. That’s why industries trust us for their replacement spare EPDM rubber diaphragms weir type and replacement spare nitrile rubber diaphragms weir type, making sure long-lasting elasticity and resistance to chemicals and heat. For general-purpose sealing, our replacement spare neoprene rubber diaphragms weir type and replacement spare butyl rubber diaphragms weir type are manufactured to exact tolerances.Our replacement spare natural rubber diaphragms weir type are ideal for water and mild chemical applications, while for aggressive fluid environments, we offer replacement spare Hypalon rubber diaphragms weir type and replacement spare Viton rubber diaphragms weir type, known for their excellent resistance to acids and solvents.For more critical operations requiring superior protection, MVS also manufactures PTFE-backed rubber diaphragms. These options include replacement spare PTFE backed by EPDM diaphragms weir type, PTFE backed by neoprene, butyl, and Viton, combining the chemical inertness of PTFE with the flexibility of rubber. This layered design offers the advantage of long-term sealing performance without compromising diaphragm flexibility.
MVS Valve, we understand that industrial performance relies heavily on the durability and consistency of internal valve components. That’s why we manufacture and supply Spare Straight Through Diaphragms that are specifically engineered to match the demanding conditions of various industries. These diaphragms are essential components for maintaining peak valve performance in abrasive, corrosive, or high-pressure applications.Our Spare Straight Through Diaphragms are available in multiple premium-quality elastomer materials to cater to diverse operational needs. These include Replacement Spare Natural Rubber Diaphragms Straight Type, Replacement Spare EPDM Rubber Diaphragms Straight Type, and Replacement Spare Neoprene Rubber Diaphragms Straight Type, all offering excellent flexibility and sealing integrity. Designed for use in Straight Through Diaphragm Valves, these diaphragms ensure reliable service, reduced maintenance downtime, and longer operating life.We also offer high-performance options such as Replacement Spare Butyl Rubber Diaphragms Straight Type and Replacement Spare Nitrile Rubber Diaphragms Straight Type, which are ideal for chemical and oil-handling environments. For highly aggressive media, our Replacement Spare Hypalon Rubber Diaphragms Straight Type provide exceptional chemical and weather resistance, ensuring durability even in the harshest service conditions.Each diaphragm is crafted with precision to fit perfectly into straight-through valve assemblies, enabling consistent performance without leakage or failure. With a focus on compatibility, safety, and performance, MVS diaphragms are a preferred choice across industries such as water treatment, chemical processing, pharmaceuticals, mining, and more. MVS provides cost-effective, high-quality diaphragm replacements that match or exceed original equipment specifications.
Diaphragm Valve
Frequently Asked Questions
Can’t find your duty condition here? Send us the media, size, pressure and temperature and we will specify the valve. Contact us
What is a diaphragm valve?
A diaphragm valve closes by pressing a flexible diaphragm down onto a weir or onto the valve floor, sealing the line. The diaphragm separates the process fluid completely from the stem, bonnet and actuator, so there is no stem packing to leak and no cavity where media can collect. That makes it the standard choice for corrosive, abrasive, viscous and hygienic duty where a metal-seated valve would leak or clog.
Which diaphragm valves does MVS manufacture?
Three valves — Rubber Lined Diaphragm Valve (weir type), Straight Through Diaphragm Valve and Threaded / Screwed End Diaphragm Valve — plus replacement diaphragms as spares: Spare Weir Type Diaphragms and Spare Straight Through Diaphragms.
A fully lined version is available as the PTFE Lined Diaphragm Valve, and a thermoplastic one as the PVDF Diaphragm Valve.
Weir type or straight-through — which should I use?
A weir type has a raised sill in the body, so the diaphragm travels a short distance and flexes less. That gives longer diaphragm life, better throttling control and a tighter shut-off, and it is the right choice for most clean and moderately loaded duties. A straight-through body has a full unobstructed bore, so it drains completely and passes slurry, fibrous media and solids without a ledge for them to build on — at the cost of more diaphragm travel and shorter diaphragm life.
Which body lining and diaphragm materials are available?
Body linings: Ebonite, Natural rubber, Neoprene, Hypalon, Butyl and EPDM for general and abrasive service, or FEP, PFA and PVDF where chemical attack is severe. Bodies are Cast Iron (IS 210 Gr. FG 200/220/260), Cast Carbon Steel (ASTM A216 Gr. WCB) or Stainless Steel. Diaphragms are supplied in matching elastomers and in PTFE-faced construction. Send us the media, temperature and whether solids are present and we will specify the pairing.
What sizes and standards do your diaphragm valves follow?
Weir type valves are supplied 15 mm to 300 mm and straight-through 15 mm to 200 mm. Design is to BS EN 13397:2002 (formerly BS 5156) and testing to BS EN 12266-1 (BS 6755 Part 1). End connections are flanged to BS 10 Table D/E/F, DIN ND 10 and 16, or ANSI B16.5 Class 125 and 150, with butt weld and threaded ends available.
Why choose a diaphragm valve for slurry or corrosive service?
Because there is no seat cavity, no stem packing and no metal in contact with the fluid. Abrasive slurry that would score a ball or gate seat simply passes through a straight-through body; corrosive media that would attack a stem seal never reaches one. The valve also fails safe in an obvious way — a worn diaphragm shows as a leak to the bonnet vent rather than as an uncontrolled release.
Do you supply replacement diaphragms?
Yes — weir type and straight through diaphragms are stocked as spares in the same elastomer and PTFE-faced options as the valves. The diaphragm is the one wearing part, so keeping a set on the shelf turns a failure into a ten-minute change rather than a line shutdown. Quote the valve size, body type and media when ordering.
How often does the diaphragm need replacing?
It depends on cycles, temperature and media rather than on elapsed time — a valve cycled continuously at elevated temperature will need a diaphragm far sooner than one used for occasional isolation. Plan on inspecting at each scheduled shutdown, watch the bonnet vent for the first sign of weeping, and avoid over-tightening the compressor, which is the most common cause of early diaphragm failure.
Are pneumatic or electric actuated diaphragm valves available?
Yes. All three body styles can be supplied with pneumatic or electric actuators in place of the handwheel, built as a complete assembly with the mounting kit and accessories specified for your control system.
Are you a manufacturer, and what is your minimum order quantity?
MVS describes itself as the largest diaphragm and ball valve exporter from India and has manufactured at its own works since 1978, ISO 9001:2015 certified. The minimum order quantity is 20 pieces. Special linings, diaphragm materials and actuated assemblies are built to order.