Home > Stainless Steel Diaphragm Valves
Nakamura Stainless is a reliable manufacturer and supplier based in Pulau Ujong, Singapore. They are known for providing high-quality stainless steel flow control solutions. One of their precision-engineered products is the Stainless Steel Diaphragm Valves, which are designed for dependable, hygienic, and leak-proof performance. These valves are perfect for managing the flow of clean or corrosive fluids in industries that require strict control over contamination. Nakamura Stainless builds each diaphragm valve to meet international quality and safety standards, offering reliable solutions for sectors like pharmaceuticals, food and beverage, biotechnology, and chemical processing, where cleanliness and precision matter.
Stainless Steel Diaphragm Valves are usually made from SS 316 or SS 316L. These materials contain 16–18% chromium, 10–14% nickel, and 2–3% molybdenum. This composition provides excellent corrosion resistance and durability. The valves offer a tensile strength of around 485–620 MPa and perform well in both high-temperature and chemically aggressive settings. The flexible diaphragm, made from elastomers or PTFE, serves as the sealing element and keeps the fluid separate from the valve body. This design reduces contamination and ensures smooth, reliable flow control. Their strong mechanical properties and sanitary design make them great for handling hygienic and corrosive media.
| Body Material | Stainless Steel |
| Connection | Clamp / Weld |
| Operated | Plastic Handwheel |
| Seal | PTFE + EPDM (Double Layer) |
| Standard | 3A / BPE / DIN |
| Available Size | DN25 ~ DN65 / 1″ ~ 2 1/2″ |
| Structure | T Type |
| Max.Working Pressure | 10 Bar |
| Max. Working Temp. | 120 ℃ |
| Material | C | Si | Mn | P | S | Cr | Ni | N |
|---|---|---|---|---|---|---|---|---|
| Stainless Steel | 0.080 max | 0.75 max | 2.00 max | 0.045 max | 0.030 max | 18.00-20.00 | 8.00-10.50 | 0.100 max |
| Material | Yield Strength | Tensile Strength | Elongation (%) | Reduction of Area (%) | Hardness Max | |
|---|---|---|---|---|---|---|
| Min (Mpa) | Min (Mpa) | Min | Min (50mm) | HB | HR B | |
| Stainless Steel | 170 | 458 | 30 | 50 | 201* | 92* |
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The stainless steel air to open actuated diaphragm valve, available in sizes from 1″ to 6″, features high corrosion resistance. Ideal for automated control, it ensures reliable flow regulation in various applications.
Stainless steel globe control valves, diaphragm operated, come in sizes from 1″ to 12″. These valves offer excellent corrosion resistance and precise flow control, suitable for high-pressure and temperature applications.
Wire diaphragm valves in stainless steel, available in sizes from 1″ to 6″, provide robust corrosion resistance and reliable sealing. They are ideal for handling slurries and aggressive fluids in industrial processes.
Stainless steel flow control valves, ranging from 1″ to 8″, offer excellent corrosion resistance and precision. Suitable for managing fluid flow in a variety of industrial and chemical applications.
Flanged diaphragm valves in stainless steel, available in sizes from 2″ to 12″, ensure high corrosion resistance and secure connections. They are ideal for precise flow control in demanding environments.
The stainless steel straightway diaphragm valve, sized from 1″ to 6″, features excellent corrosion resistance. Its straightway design facilitates efficient flow control and is suitable for various industrial applications.
We are dedicated to delivering the highest quality Stainless Steel Diaphragm Valves to our clients. To ensure their superior quality, these valves undergo a series of rigorous testing processes before being dispatched. The tests include hardness testing, chemical analysis using spectro analysis, positive material identification (PMI) testing, flattening testing, micro and macro tests, pitting resistance testing, flaring testing and intergranular corrosion (IGC) testing. In addition to these tests, we also offer third-party inspection certificates to further assure our clients of the excellence and suitability of our Stainless Steel Diaphragm Valves for diverse applications.
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