Non Returneble Valve

We are a leading Manufacturer of ss non return valve, stainless steel 316 bar stock nrv valve and ss 316 nrv valves from Mumbai, India.

SS Non Return Valve

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Product Details:

Minimum Order Quantity	10 Piece
Size	1/4"
Valve Size	1/4"
Material Grade	SS 316
End Connection	Threaded
Media	Air
End Connection Type	Threaded
Valve Type	Swing Check
Working Pressure	PN 10
Application	Food Industry, Water, Steam, Oil, Chemicals, Gas
Standard	ASME B16.34
Seat Material	PTFE Seat
Temperature Rating	-20 to 180 C
Brand	Kalpataru pipe and fittings
Automation Grade	Semi Automatic
Operation	Automatic

Stainless Steel Non-Return Valve (Check Valve) – Overview

A Stainless Steel Non-Return Valve (NRV), also called a Check Valve, allows fluid or gas to flow in one direction only and prevents backflow, protecting pumps, compressors, and other equipment.

🧩 What is a Non-Return Valve?

Prevents reverse flow automatically
Opens when fluid flows forward (above cracking pressure)
Closes tightly to block backflow when flow stops or reverses
Commonly installed in pipelines, instrumentation, hydraulic, pneumatic, and process systems

📐 Types of Stainless Steel NRVs

Type	Description
Swing Check Valve	Disc swings open/close; used in low-velocity flow systems
Ball Check Valve	Ball seals against seat; compact, simple
Lift Check Valve	Disc lifts off seat vertically; used in high-pressure
Spring Check Valve	Spring holds disc/ball closed until forward flow

🔩 Key Specifications

Feature	Description
Material	Stainless Steel 304 / 316 / 316L
Connection Types	Threaded (NPT, BSP), Socket Weld, Butt Weld, Flanged, Compression (Tube)
Size Range	1/8" to 4" or larger (both inch & metric)
Pressure Rating	Up to 6000 psi (depends on design and size)
Temperature Range	-50°C to +400°C (depending on material & sealing)
Sealing Types	Metal-to-metal, PTFE, Viton, EPDM

🛠️ Common Applications

Chemical processing
Oil and gas pipelines
Hydraulic systems
Pneumatic controls
Water and steam lines
Food and pharma industries

🏷️ Example Part Number

Part Number	Description
NRV-SS316-1/2NPT	Stainless Steel 316, 1/2" NPT Threaded NRV
NRV-SS304-6MM-CW	Stainless Steel 304, 6 mm Tube, Compression NRV

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Brand	Series / Model
KALPATARU	NRV Series

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Stainless Steel 316 Bar Stock Nrv Valve

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Approx. Price: Rs 305 / PieceGet Latest Price

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Product Details:

Minimum Order Quantity	10 Piece
Size	15 mm
Size/Diameter	0.5 inch
Valve Size	1/2 Inch
Material Grade	SS 316
End Connection	Threaded
Media	Air
End Connection Type	Threaded
Valve Type	Swing Check
Automation Grade	Automatic
Working Pressure	PN 10
Application	Petrochemical
Maximum Pressure	3000 psi
Maximum Temperature	200 deg
Standard	ASME B16.34
Seat Material	PTFE Seat
Temperature Rating	-20 to 250 C
Operation	Automatic
Brand	KALPATARU

A Stainless Steel 316 Bar Stock NRV Valve is a type of non-return valve (check valve) machined from solid SS316 bar stock and designed to allow flow in one direction only, preventing backflow in process systems.

🔧 Key Features

Attribute	Details
Material	SS316 (AISI 316 stainless steel) — highly resistant to corrosion and suitable for harsh environments
Type	Bar stock machined check valve
Function	Allows flow in one direction; blocks reverse flow automatically
Design	Compact, high-strength body machined from solid stainless steel bar
End Connections	Typically compression (ferrule type), male/female NPT, BSP, or socket weld
Sizes Available	Commonly 1/8", 1/4", 3/8", 1/2", 3/4", 1"
Cracking Pressure	Can be fixed or spring-adjustable (typical: 1–5 psi)
Pressure Rating	Up to 6000 psi (depends on size and make)
Temperature Range	-20°C to 200°C or higher (depends on seal material)

🔍 Internal Components

Component	Material
Body	SS316 Bar Stock
Poppet/Disc	SS316 or reinforced plastic/metal
Spring	SS316 (in spring-loaded types)
Seals	PTFE, Viton, EPDM (based on chemical compatibility)

✅ Applications

Instrument air lines
Hydraulic and pneumatic systems
Chemical and process control lines
Fuel, gas, and water systems
Pharmaceutical and food industries
OEM skids and panels

📐 Typical Product Description Example

SS316 Bar Stock NRV Valve, 1/4” Female NPT x Female NPT, 6000 psi, Cracking Pressure 2 psi, PTFE Seat

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KALPATARU

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Packaging Details: HPDE BOX

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Ss 316 Nrv Valves

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Approx. Price: Rs 450 / PieceGet Latest Price

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Product Details:

Minimum Order Quantity	10 Piece
Size	1/2 inch (15 mm)
Valve Size	1/2 Inch
Body Material	Stainless Steel
Valve Type	Swing Check
Media	Air
End Connection	Screwed
Automation Grade	Automatic
Pressure Rating	PN 16
Material	Stainless Steel
Maximum Pressure	3000PSI
End Connection Type	Threaded
Maximum Temperature	100 DEG *C
BRAND	KALPATARU

Stainless Steel 316 NRV (Non-Return Valve)

A Non-Return Valve (NRV), also known as a check valve, allows fluid to flow in one direction only, preventing backflow in pipelines. Made from Stainless Steel 316, these valves provide excellent corrosion resistance and are ideal for use in aggressive or sanitary environments.

�� Key Features

Material: Stainless Steel 316 / 316L (high corrosion resistance, especially against chlorides and acidic media)
Type: Non-Return Valve (Check Valve)
Designs: Swing check, lift check, ball check, or wafer check depending on application
Connection Types: Threaded (NPT, BSP), Flanged, Butt Weld, Socket Weld
Pressure Rating: Typically up to 6000 PSI (varies by design and size)
Temperature Range: -196°C to 400°C (-320°F to 752°F), depending on valve type and seal materials
Seal Material: PTFE, Viton, EPDM, or Metal-to-Metal seals available

�� Typical Specifications

Parameter	Specification
Material	SS 316 / 316L
Valve Type	Swing, Lift, Ball, Wafer Check
Connection	Threaded, Flanged, Butt Weld, Socket Weld
Pressure Rating	Up to 6000 PSI
Temperature Range	-196°C to 400°C
Seal Material	PTFE, Viton, EPDM, Metal

✅ Advantages

Prevents reverse flow and protects pumps, compressors, and pipelines
High corrosion resistance suitable for harsh chemical environments
Durable and long-lasting stainless steel construction
Low maintenance and easy to install
Suitable for high pressure and temperature applications

�� Common Applications

Chemical and petrochemical industries
Oil and gas pipelines
Water treatment plants
Food and beverage processing
Pharmaceutical industries

�� Available From

Kalpataru Pipe & Fittings

*^Types*	^{FEMAL, MALE X FEMALE ,OD XOD}
*^{Equivalent To}*	^{SWAGELOK, PARKER, DK-LOK, HOKE}
*^Grade*	^{SS304 & SS316}
*^Sizes*	^{1/8’’ to1’’}
*^Ends*	^{Threaded, Welding, JIC}
*^{Pressure Rating}*	^{1000 Psi, 3000 Psi, 6000 Psi, and 10000 Psi}
*^Threads*	^{NPT, BSPT, and BSP}
*^{HS CODE}*	8481
*^BRAND*	KALPATARU

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Additional Information:

Item Code: 848100
Production Capacity: 1000 PIECES
Delivery Time: READY STOCK
Packaging Details: HPDE BOX

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