Manufacturer, Supplier & Exporter of Stainless Steel 304 Check Valve

Stainless Steel 304 Check Valve is a robust, corrosion-resistant valve used to control backflow in pipelines, ensuring fluid flows in only one direction. Crafted from premium-grade austenitic stainless steel, these valves offer excellent strength, wear resistance, and longevity in a wide range of industrial applications. Their simple yet effective design makes them suitable for water, gas, steam, and corrosive media systems..

Riddhi Siddhi Impex, a leading name in the industrial valve manufacturing sector, is a trusted domestic supplier of Stainless Steel 304 Check Valves. Known for quality engineering, the company produces check valves that conform to international standards such as ASTM A351 CF8 and ASME B16.34. These valves are available in swing type, lift type, wafer type, and piston type variants, catering to a broad spectrum of industrial needs.

Stainless Steel 304 Check Valves are widely used in the oil and gas industry, chemical plants, food and beverage production, pharmaceutical manufacturing, water treatment plants, and marine applications. The inherent corrosion resistance of SS 304 material ensures reliable performance even in moderately aggressive environments, making these valves a preferred choice for long-term installations.

Riddhi Siddhi Impex ensures the availability of Stainless Steel 304 Check Valves across India, supplying to domestic hubs such as Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Ankleshwar, Navsari, Valsad, Rajpipla, and more.

These valves are available in a range of sizes from ½” to 24”, with pressure ratings including Class 150, 300, and higher depending on the application. Their end connections include flanged, threaded, and socket weld types, ensuring compatibility with various piping systems. The valves are designed for low-pressure drop and minimal turbulence, enhancing system efficiency.

Stainless Steel 304 Check Valve

Specifications

Parameter	Details
Material	Stainless Steel 304 (ASTM A351 CF8)
Valve Type	Check Valve (Non-Return Valve)
Available Types	Swing, Lift, Wafer, Piston
Size Range	½” to 24”
Pressure Ratings	Class 150, 300, PN10, PN16
End Connection	Flanged, Threaded, Socket Weld
Operation	Automatic (Flow-Controlled)
Standards	API 6D, ASME B16.34, DIN, ISO

Chemical Composition (SS 304 / CF8)

Element	Percentage (%)
Carbon (C)	0.08 max
Manganese (Mn)	2.00 max
Silicon (Si)	1.00 max
Chromium (Cr)	18.0 - 20.0
Nickel (Ni)	8.0 - 11.0
Phosphorus (P)	0.045 max
Sulfur (S)	0.03 max

Mechanical Properties

Property	Value
Tensile Strength	≥485 MPa
Yield Strength	≥170 MPa
Elongation	≥30%
Hardness	≤201 HB

Dimension Chart (Class 150 - Flanged End)

Size (Inch)	Face to Face (mm)	Flange OD (mm)	Weight (Kg)
1”	108	150	3.2
2”	152	190	6.7
3”	178	210	9.5
4”	203	250	13.2
6”	267	310	21.8

Equivalent Grades

Standard	Equivalent Grade
ASTM	A351 CF8
EN	1.4301
JIS	SUS 304
IS	30400

Equivalent Standards

Standard	Description
API 6D	Pipeline Valves
ASME B16.34	Valves - Flanged, Threaded, Welding End
ISO 5208	Pressure Testing of Valves
DIN 3202	Face-to-Face Dimensions

Other Types of Check Valves

Type	Description
Swing Check Valve	Hinged disc swings open/closed with flow.
Lift Check Valve	Disc lifts off the seat under flow pressure.
Wafer Check Valve	Compact design, installed between flanges.
Dual Plate Check Valve	Two spring-loaded plates, lightweight design.
Piston Check Valve	Suitable for high-pressure and high-temp systems.

The check valve's non-return mechanism is crucial in preventing reverse flow that could damage pumps, compressors, or process equipment. The SS 304 construction provides excellent hygiene benefits, especially important in industries like food processing and pharmaceuticals where cleanliness and contamination prevention are paramount.

Frequently Asked Questions (FAQs)

Q1: What is the main function of a Stainless Steel 304 Check Valve?

A1: Its primary function is to prevent reverse flow in a pipeline, ensuring unidirectional fluid movement.

Q2: What industries typically use SS 304 Check Valves?

A2: They are widely used in chemical plants, pharmaceuticals, water treatment, food & beverage, and petrochemicals.

Q3: What size range is available from Riddhi Siddhi Impex?

A3: Sizes range from ½ inch to 24 inches with various end connections and pressure ratings.

Q4: Do you supply in all Indian domestic cities?

A4: Yes, Riddhi Siddhi Impex supplies across India including Mumbai, Delhi, Chennai, Hyderabad, Bengaluru, Pune, Surat, Ahmedabad, and many more.