• Sturdy but simple design.
• 100% leak proof
• Short length - less space required.
• Light weight.
• Lower pressure drop across the valve.
• Low opening & closing pressures.
• Wide range of materials, temperature & pressure ratings
• Efficient flow characteristics.
• Can be mounted horizontally & vertically.
• Highly economical.
• Gas and liquids pipelines
• Field gathering systems
• Wellhead injection lines
• Gas export facilities
• Product tank farms
• Chemical processing
• Gas storage caverns
• Power generation
• Space-saving design
• Suitable for horizontal or vertical flow-up service
• Clapper opens in downstream piping
Specifications Sizes 1 1/2” – 24" Pressure Rating Class 150 to 2500 Materials Carbon steel Stainless steel
Our Wafer Pattern Dual Plate Check Valve provides great sealing capacities for high and low pressure; Usually this cast iron dual plate check valve is used in industrial and HVAC applications - everywhere water, heating, air conditioning and compressed air devices are included.
An economical, space-saving spring dual plate check valve with Cast Iron body and EPDM seal
Either vertically (only upwards) or horizontally installed.
|Body||ASTM A 216 Gr WCB | WC1 | WC6 | WC9 | LCB|
|CLOSURE PLATE (DISC)||SS 304 | SS 316|
|HING PIN||AISI 304 | AISI 316|
|STOP PIN||AISI 304 | AISI 316|
|MFG STD||GENERALLY CONFORMING TO API 6D | API 594|
|INSP & TEST STD||GENERALLY CONFORMING TO API 6D | API 598|
|ENDS||WAFER TYPE TO SUIT ANSIB 16.5 (150#)|
|HYD-TEST PRESSURE||BODY : 425 Psig (30 Kg/Cm²)
SEAT : 300 Psig (21 Kg/Cm²)
|SIZE RANGE||50 MM TO 600 MM|
Wafer Check Valve use a swinging disc to allow or block flow. Their design allows them to be fitted in extremely tight spaces – where the flanged check valve can not be used. The wafer check valves have molded bodies around the area where the disc opens up. This is the most important difference between the above two types of valve.
While at first glance this may just seem like a space issue, the presence of a valve body as opposed to the bare bones wafer check actually makes a big difference in the functionality of the valve. Because flanged check valves are flanged in place, there isn't much room for the disc to open in the pipe line. That means flow is often restricted within the check valve.
Wafer Check Valve on the contrary have a molded body that creates room for the disc to swing open fully, thus allowing full flow. As you can imagine, this is very important if your application requires full flow. For this reason, we usually offer wafer check valve for applications where flow is not an issue, and swing check valves when a full port valve is required.