MOQ: | 1 |
Price: | $26/pieces |
Standard Packaging: | Carton |
Delivery Period: | 15-20 work days |
Payment Method: | T/T |
Supply Capacity: | 100-1000 |
Quansi check valves are automatic one-way flow control devices designed to prevent backflow in piping systems. These valves operate without external power, using system pressure to open and gravity/spring force to close.
Feature | Benefit |
---|---|
Zero Leakage Design | Prevents backflow contamination |
Low Cracking Pressure | From 0.1 psi (0.007 bar) |
Fast Response | <0.5 second closing time |
Multi-Material Options | Corrosion resistant materials |
Compact Construction | Saves installation space |
Parameter | Specifications |
---|---|
Valve Types | Swing, Lift, Dual Plate, Ball, Wafer |
Size Range | ½" to 48" (DN15-DN1200) |
Pressure Rating | 150# to 2500# (PN10-PN420) |
Temperature Range | -196°C to +650°C (-320°F to +1200°F) |
Flow Coefficient (Cv) | 5 to 10,000+ |
End Connections | Flanged, Threaded, Wafer, Butt Weld |
Body Materials | Cast Iron, Carbon Steel, SS304/316, Alloy 20 |
Seat Materials | PTFE, Metal, Nylon, PEEK |
Characteristic | Value |
---|---|
Cracking Pressure | 0.1-5 psi (adjustable) |
Closing Time | 0.2-2 seconds |
Pressure Drop | <1 psi at rated flow |
Bubble-Tight Seal | ANSI Class VI (metal seats Class IV) |
Cycle Life | >1 million cycles |
Type | Swing | Lift | Dual Plate | Ball |
---|---|---|---|---|
Best For | Low Velocity | Vertical Flow | High Pressure | Viscous Media |
Size Range | 2"-48" | ½"-8" | 2"-48" | ¼"-4" |
Max Pressure | 300# | 2500# | 900# | 600# |
Advantage | Low Cost | Tight Seal | Compact | No Water Hammer |
Component | Standard | Optional |
---|---|---|
Body | CF8M (SS316) | Titanium, Hastelloy |
Disc | SS304 | Bronze, PPS |
Seat | PTFE | RPTFE, Metal |
Spring | SS302 | Inconel |
Hinge Pin | SS416 | Tungsten Carbide |
Need help selecting? Provide:
MOQ: | 1 |
Price: | $26/pieces |
Standard Packaging: | Carton |
Delivery Period: | 15-20 work days |
Payment Method: | T/T |
Supply Capacity: | 100-1000 |
Quansi check valves are automatic one-way flow control devices designed to prevent backflow in piping systems. These valves operate without external power, using system pressure to open and gravity/spring force to close.
Feature | Benefit |
---|---|
Zero Leakage Design | Prevents backflow contamination |
Low Cracking Pressure | From 0.1 psi (0.007 bar) |
Fast Response | <0.5 second closing time |
Multi-Material Options | Corrosion resistant materials |
Compact Construction | Saves installation space |
Parameter | Specifications |
---|---|
Valve Types | Swing, Lift, Dual Plate, Ball, Wafer |
Size Range | ½" to 48" (DN15-DN1200) |
Pressure Rating | 150# to 2500# (PN10-PN420) |
Temperature Range | -196°C to +650°C (-320°F to +1200°F) |
Flow Coefficient (Cv) | 5 to 10,000+ |
End Connections | Flanged, Threaded, Wafer, Butt Weld |
Body Materials | Cast Iron, Carbon Steel, SS304/316, Alloy 20 |
Seat Materials | PTFE, Metal, Nylon, PEEK |
Characteristic | Value |
---|---|
Cracking Pressure | 0.1-5 psi (adjustable) |
Closing Time | 0.2-2 seconds |
Pressure Drop | <1 psi at rated flow |
Bubble-Tight Seal | ANSI Class VI (metal seats Class IV) |
Cycle Life | >1 million cycles |
Type | Swing | Lift | Dual Plate | Ball |
---|---|---|---|---|
Best For | Low Velocity | Vertical Flow | High Pressure | Viscous Media |
Size Range | 2"-48" | ½"-8" | 2"-48" | ¼"-4" |
Max Pressure | 300# | 2500# | 900# | 600# |
Advantage | Low Cost | Tight Seal | Compact | No Water Hammer |
Component | Standard | Optional |
---|---|---|
Body | CF8M (SS316) | Titanium, Hastelloy |
Disc | SS304 | Bronze, PPS |
Seat | PTFE | RPTFE, Metal |
Spring | SS302 | Inconel |
Hinge Pin | SS416 | Tungsten Carbide |
Need help selecting? Provide: