Check Valves

Process Systems has a large range of high quality check valves held in stock in Australia. These include piston check valves, swing check valves and duo check valves. We also do a large range of duck bill check valves which we make to order so please contact us for pricing and information on this.

21 Items Found

Stainless Steel Duo Check Valve

Stainless Steel Duo Check Valve

SKU: DCVS

Size 50mm to 300mm
Body 316 Stainless Steel
Seat FKM
Disc 316 Stainless Steel
Pressure Range 0 to 40 BAR
Temperature 0 to 180°C

From $110.00

In Stock

Brass Piston Check Valve

Brass Piston Check Valve

SKU: PCB

Size 1/2" to 2" BSP
Body Brass
Seat NBR
Pressure Range 0 to 16 BAR
Temperature 0 to 60°C

From $11.00

In Stock

Flanged Ball Check Valve

Flanged Ball Check Valve

SKU: BCV

Size 50mm to 300mm
Flange AS4087 PN16 / AS2129 Table E
Body FBE Coated Ductile Iron
Ball NBR Coated
Pressure Range 0 to 16 BAR
Temperature 0 to 80°C

From $143.00

In Stock

2 piece Stainless Steel Check Valve

2 piece Stainless Steel Check Valve

SKU: ICS

Size 1/2" to 2" BSP
Body 316 Stainless Steel
Seat Metal
Pressure Range 0 to 63 BAR
Temperature 0 to 180°C

From $22.00

In Stock

Cast Iron Duo Check Valve

Cast Iron Duo Check Valve

SKU: DCV

Size 50mm to 600mm
Body FBE coated Cast Iron
Seat EPDM
Disc 316 Stainless Steel
Pressure Range 0 to 16 BAR
Temperature 0 to 100°C

From $55.00

In Stock

Wafer Inline Single Disc Check Valve

Wafer Inline Single Disc Check Valve

SKU: SDC

Size 15mm to 200mm
Body 316 Stainless Steel
Seat Stainless Steel
Pressure Range 0 to 40 BAR
Temperature -20°Cto 220°C

From $22.00

In Stock

Cast Iron Flex Check Valve

Cast Iron Flex Check Valve

SKU: FCVC

Size 50mm to 300mm
Flange AS4087 PN16 / AS2129 Table E
Body FBE Coated Ductile Iron
Disc NBR Coated
Pressure Range 0 to 16 BAR
Temperature 0 to 80°C

From $187.00

In Stock

Brass Swing Check Valve

Brass Swing Check Valve

SKU: SCB

Size 1/2" to 2" BSP
Body Brass
Seat NBR
Pressure Range 0 to 16 BAR
Temperature 0 to 80°C

From $11.00

In Stock

Stainless Steel Swing Check Valve

Stainless Steel Swing Check Valve

SKU: SCS

Size 1/2" to 2" BSP
Body 316 Stainless Steel
Seat Metal
Pressure Range 0 to 13 BAR
Temperature 0 to 180°C

From $22.00

In Stock

UV Stabalised PVC Ball Check Valve

UV Stabalised PVC Ball Check Valve

SKU: BCP

Size 1/2" to 2" BSP & Solvent Weld
Body UV Stabalised PVC
Seat EPDM or FKM
Pressure Range 0 to 10 BAR
Temperature Ambient

From $16.50

In Stock

3 piece Stainless Steel Check Valve

3 piece Stainless Steel Check Valve

SKU: ICS3

Size 1/2" to 2" BSP
Body 3 piece 316 Stainless Steel
Seat Metal
Pressure Range 0 to 63 BAR
Temperature -20°C to 180°C

From $44.00

In Stock

ANSI 300 Flanged Cast Steel Swing Check Valve

ANSI 300 Flanged Cast Steel Swing Check Valve

SKU: SCFW3

Size 50mm to 300mm
Body Carbon Steel (WCB)
Seat Metal
Pressure 50 Bar @ ambient

From $374.00

In Stock

Class 800 Forged Steel Piston Check Valve

Class 800 Forged Steel Piston Check Valve

SKU: PCF8

Size 1/2" to 2" NPT
Body Forged Steel
Seat Deposited 13Cr
Pressure Range 0 to 150 BAR
Temperature 20°C to 180°C

From $60.50

In Stock

Flanged Duck Bill Check Valve

Flanged Duck Bill Check Valve

SKU: DBF

Size 100mm to 2400mm
Body Neoprene
Models Flanged Duck Bill Check
Flange 316 Stainless Steel
These are Price on Application

From $511.50

In Stock

Flanged Stainless Steel Swing Check Valve

Flanged Stainless Steel Swing Check Valve

SKU: SCFS

Size 50mm to 300mm
Flange ANSI 150
Body 316 Stainless Steel
Seat Metal
Pressure Range 0 to 20 BAR
Temperature 0 to 220°C

From $759.00

In Stock

Flanged WCB Swing Check Valve

Flanged WCB Swing Check Valve

SKU: SCFW

Size 50mm to 300mm
Flange ANSI 150
Body WCB with primer
Seat Metal
Pressure Range 0 to 20 BAR
Temperature 0 to 220°C

From $324.50

In Stock

Insertable Duck Bill Check Valve

Insertable Duck Bill Check Valve

SKU: DBI

Size 100mm to 2400mm
Body Neoprene
Models Insertable Duck Bill Check Valve
Expander Clamp 316 Stainless Steel
These are Price on Application

From $434.50

In Stock

Insertable Flanged Duck Bill Check Valve

Insertable Flanged Duck Bill Check Valve

SKU: DBIF

Size 100mm to 2400mm
Body Neoprene
Models Insertable Flanged Duck Bill Check Valve
These are Price on Application

From $434.50

In Stock

Slip On Duck Bill Check Valve

Slip On Duck Bill Check Valve

SKU: DBS

Size 100mm to 2400mm
Body Neoprene
Models Slip on Duck Bill Check
Clamp 316 Stainless Steel
These are Price on Application

From $253.00

In Stock

Stainless Steel Piston Check Valve

Stainless Steel Piston Check Valve

SKU: PCS

Size 1/2" to 2" BSP
Body 316 Stainless Steel
Seat PTFE
Pressure Range 0 to 40 BAR
Temperature 0 to 180°C

From $33.00

In Stock

Wafer Swing Check Valve

Wafer Swing Check Valve

SKU: SCVS

Size 50mm to 600mm
Body 316 Stainless Steel
Seat FKM
Pressure Range 0 to 16 BAR
Temperature -20°Cto 120°C

From $115.50

In Stock

What is a Check Valve?

A check valve is used to ensure the flow of media in one direction effectively blocking (or checking) the media if it attempts to flow in the other direction (back pressure).
How does a Check Valve work?

A check valve works in a number of different ways depending upon its design. All share one common trait and that is some sort of device (usually a disc coming down onto a seat) that will block the line if pressure occurs in the other direction.
How long will my Check Valve last?

This really depends upon the type of check valve selected and the media/environment it is in. A check valve that has a very high frequency will not have the same life span of one that is used sparingly. Also the media will have a big determination on the life span as well. For instance if it is corrosive then the seat/valve will be degrading even if it is not actually checking the media in use.
How do I install a Check Valve?

All check valves are unidirectional meaning that they will need to be installed correctly with the direction of flow. They will usually have an arrow cast onto the side of the check valve body indicating the direction of flow. They have many different connections, for instance threaded or flanged, so the installation will need to account for this.
What are typical uses of a Check Valve?

Check valves are widely used across all industries, basically anywhere back pressure may be present and not wanted a check valve will be installed. They are quite often used in conjunction with other valves as well.
How long will my product take to get to me?

This depends upon where you are based and the freight method chosen. If the express freight option is selected it is usually next day delivery to metropolitan areas in Australia for under 5kg. If free freight has been selected it will go by road freight which can be anywhere from 1 to 10 days depending upon your location. It usually averages 3 days.
What warranty do I get?

All of our products come standard with a 12 month warranty. The good news is we have very strict quality controls and all valves leave our warehouse tested (full material and testing certificates to API598 are available) and inspected so there are rarely any issues.

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