Stainless Steel 316 Check Valve

Manufacturer, Supplier & Exporter of Stainless Steel 316 Check Valve

Stainless Steel 316 Check Valve is a high-performance, corrosion-resistant valve designed for preventing backflow in piping systems. Made from grade 316 stainless steel, it offers superior resistance to chemical attack, pitting, and high-temperature service environments. These valves are ideal for both industrial and commercial applications where backflow prevention is critical, such as in oil and gas pipelines, chemical processing units, water treatment facilities, and marine environments.

Riddhi Siddhi Impex, a reputed manufacturer and Stainless Steel 316 Check Valve Domestic Supplier, delivers robust and precision-engineered check valves that conform to international quality standards. The valves are manufactured using top-grade SS 316 (ASTM A351 CF8M), ensuring excellent mechanical strength and durability, even under high-pressure conditions. Their manufacturing unit integrates modern machinery and quality checks that guarantee long service life and leak-proof operation.

The SS 316 check valve is commonly available in swing type, lift type, wafer type, and dual plate configurations, with threaded, socket weld, butt-weld, and flanged end connections. These valves are engineered to automatically close when fluid starts flowing in the reverse direction, thus protecting pumps, compressors, and equipment from potential damage. The inclusion of molybdenum in SS 316 makes it highly effective against chlorides and acidic environments..

These valves are suitable for vertical or horizontal installations and are available in a wide range of pressure classes such as 150#, 300#, and PN16, making them highly adaptable to various applications. The valve body and internals are precisely machined to reduce pressure drop and enhance sealing efficiency. Their maintenance-free design and anti-blowout stem ensure safety and long-term reliability..

As a trusted domestic supplier, Riddhi Siddhi Impex caters to clients in all major Indian cities such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, and Surat. Their reach extends to industrial belts and developing markets including Vadodara, Rajkot, Indore, Bhopal, Jaipur, Nagpur, Kanpur, Lucknow, Visakhapatnam, Coimbatore, and Udaipur, ensuring seamless product availability and service support.

Specifications of Stainless Steel 316 Check Valve

Property	Details
Product Name	Stainless Steel 316 Check Valve
Material Grade	SS 316 / ASTM A351 CF8M
Design Standard	ASME B16.34 / API 598
Size Range	½” to 12” (DN15 to DN300)
Pressure Rating	150#, 300#, PN16
End Connection	Flanged, Socket Weld, Threaded, Butt Weld
Type	Swing, Lift, Wafer, Dual Plate

Chemical Composition of Stainless Steel 316

Element	Content (%)
Carbon (C)	0.08 max
Manganese (Mn)	2.00 max
Silicon (Si)	1.00 max
Phosphorus (P)	0.045 max
Sulfur (S)	0.03 max
Chromium (Cr)	16.0 – 18.0
Nickel (Ni)	10.0 – 14.0
Molybdenum (Mo)	2.0 – 3.0

Mechanical Properties of SS 316

Property	Value
Tensile Strength	515 MPa min
Yield Strength (0.2% offset)	205 MPa min
Elongation	40% min
Hardness	95 HRB max

Dimension Chart for SS 316 Check Valve (Flanged End - Class 150)

Nominal Size (Inch)	Face to Face (mm)	Flange OD (mm)	Weight (kg)
1"	108	127	4
2"	127	165	7.5
4"	203	229	18
6"	267	279	28
8"	292	343	45

Equivalent Grades & Standards

Standard	Equivalent Grade
ASTM	A351 CF8M
UNS	S31600
EN	1.4408
DIN	X5CrNiMo17-12-2
JIS	SCS14

Other Valve Types Supplied by Riddhi Siddhi Impex

Valve Type	Material	Application
Gate Valve	SS 304 / SS 316	On/Off Flow Control
Globe Valve	SS 316	Throttling Flow
Ball Valve	SS 316	Quick Shutoff
Needle Valve	SS 316	Precise Flow Regulation
Butterfly Valve	SS 316	Large Bore Flow Control

Stainless Steel 316 Check Valves are widely used in sectors like pharmaceuticals, petrochemicals, food processing, HVAC systems, and desalination plants due to their non-reactive surface and hygiene compliance. Their compatibility with steam, gases, water, oil, and other aggressive fluids makes them versatile for diverse applications. The valves are tested for pressure, hydrostatic sealing, and endurance before dispatch.

Frequently Asked Questions (FAQs)

Q1: What is the maximum pressure rating of SS 316 Check Valve?

A1: Our SS 316 check valves are available in pressure ratings up to Class 300 (approximately 50 bar).

Q2: What types of check valves are available in SS 316?

A2: We offer swing type, lift type, wafer type, and dual plate check valves in SS 316.

Q3: Is SS 316 suitable for saltwater or marine applications?

A3: Yes, SS 316 has excellent corrosion resistance in chloride environments, making it ideal for marine use.

Q4: Do you offer delivery across India?

A4: Yes, Riddhi Siddhi Impex supplies valves to all major Indian cities including Mumbai, Delhi, Hyderabad, Bengaluru, Chennai, Pune, Surat, Vadodara, and more.