Straight Through Diaphragm Valve
Straight Through Diaphragm Valve Manufacturer
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.
Specification
| Specification | Details |
|---|---|
| Size Range | 15 mm to 200 mm |
| Design Standard | BS EN 13397:2002 (BS 5156) |
| Testing Standard | BS EN 12266-1 (BS 6755 Part 1) |
| End Connections | BS-10 Table D/E/F, DIN ND 10 & 16, ANSI B16.5 Class 125 & 150 |
Material of Construction
| Component | Material |
|---|---|
| Body |
- Cast Iron (IS 210 Gr. FG 200/220/260) - Cast Carbon Steel (ASTM A 216 Gr. WCB) - Stainless Steel SS 304 / 304L / 316 / 316L - Duplex Stainless Steel Grade 2205 |
| Rubber Lining | Hard Rubber (Ebonite), Natural, Neoprene, Hypalon, Butyl, EPDM |
| Diaphragm | Natural, Neoprene, Hypalon, Butyl, EPDM, Silicone |
| Spindle / Stem | AISI 410 / 304 / 316 |
| Special Alloys (Optional) | Titanium, Zirconium, Nickel, Hastelloy, Inconel, Incoloy, Monel, Aluminium Bronze |
Application Industries
Crude Oil & Natural Gas Industry
Chemical & Petrochemical Industry
Water & Wastewater Treatment
Nuclear & Thermal Power Generation
Food & Beverage Industry
Pharmaceutical & Biotechnology
Pulp & Paper Industry
Mining & Mineral Processing
Marine & Shipbuilding
HVAC & Building Services
Automotive & Paint Chemical Manufacturing
Environmental & Bio Gas Renewable Energy
Steel & Metal Processing
Fertilizer Plants, Polymer Production
Cosmetics & Personal Care
Cement & Construction
Chlor-Alkali Industry
Mineral Acids Industry
Related Valves
Related products
Exporting Reliable Valve Solutions Across Continents
Australia | Argentina | Austria | Bahrain | Belgium | Bulgaria | Canada | Chile | China | Colombia | Czech Republic | Denmark | Egypt | Finland | France | Germany | Greece | Hong Kong | Hungary | Indonesia | Iran | Ireland | Israel | Italy | Japan | Jordan | Kuwait | Korea | Saudi Arabia (KSA) | Lebanon | Lithuania | Malaysia | Mexico | Netherlands | New Zealand | Nigeria | Norway | Oman | Peru | Philippines | Poland | Portugal | Puerto Rico | Qatar | Romania | Russia | Serbia | South Africa | South Korea | Spain | Sweden | Switzerland | Syria | Taiwan | Thailand | Turkey | Ukraine | United Arab Emirates (UAE) | United Kingdom (UK) | United States of America (USA) | Venezuela | Vietnam | Yemen | Zambia
Straight Through 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 straight through diaphragm valve and how does it work?
A diaphragm valve with a full, unobstructed bore and no weir in the body. The diaphragm is pushed all the way down to the valve floor to close. Because there is no sill for solids to collect against and the bore drains completely, it handles slurry, fibrous media, viscous fluids and anything that would settle out — the duties where a weir type valve would eventually block or foul.
Which body materials and diaphragms are available?
Bodies in Cast Iron, Cast Carbon Steel (ASTM A216 Gr. WCB) and Stainless Steel, with linings in Ebonite, Natural rubber, Neoprene, Hypalon, Butyl, EPDM, or FEP, PFA and PVDF for chemical service. Diaphragms in matching elastomers and PTFE-faced construction, nylon fabric reinforced. Because the diaphragm travels further in this design than in a weir type, diaphragm material choice matters more — tell us the cycle rate as well as the media.
What size, end connections and standards apply?
15 mm to 200 mm. Designed to BS EN 13397:2002 (BS 5156) and tested to BS EN 12266-1 (BS 6755 Part 1). End connections to BS 10 Table D/E/F, DIN ND 10 and 16, or ANSI B16.5 Class 125 and 150.
When should I choose straight through over a weir type?
Whenever the line carries solids, fibre or slurry, or must drain completely — pharmaceutical and food lines that have to be emptied and cleaned, mining and effluent slurries, and viscous process fluids. For everything else the weir type is the better valve: shorter diaphragm travel, longer diaphragm life and finer throttling control.
Are you a manufacturer, and what are your minimum order quantity and customization options?
MVS has manufactured diaphragm valves at its own works since 1978 and is ISO 9001:2015 certified, exporting across several continents. The minimum order quantity is 20 pieces. Special linings, diaphragm materials and actuated assemblies are built to order, and matching spare straight through diaphragms are stocked.