Gardner Denver Check Valve 90AR923 High Quality Screw Air Compressor Parts Wholesale
Price:
$26/pieces
MOQ:
1
Delivery Time:
15-20 work days
Brand:
Gardner Denver
Product Description
Quansi Check Valve Product Overview
Product Description
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.
Key Features & Benefits
| 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 |
Technical Specifications
| 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 |
Performance Characteristics
| 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 Comparison
| 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 |
Material Selection Guide
| Component | Standard | Optional |
|---|---|---|
| Body | CF8M (SS316) | Titanium, Hastelloy |
| Disc | SS304 | Bronze, PPS |
| Seat | PTFE | RPTFE, Metal |
| Spring | SS302 | Inconel |
| Hinge Pin | SS416 | Tungsten Carbide |
Why Choose Our Check Valves?
- ASME B16.34 Certified
- API 6D & API 594 Compliant
- Fire-Safe Design Available
- 3-Year Warranty
- Global Stock Availability
Need help selecting? Provide:
- Fluid Type
- Temperature/Pressure
- Connection Size
- Flow Rate
- Special Requirements
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Quansi Industrial (Guanyun) Co., Ltd.
Location
1st-2nd floor, west side of Building 6, Chengbei Science and Technology Park, Guanyun County, Lianyungang City, Jiangsu Province China
Contact Person
Emily Tang