- Model No.: Check Valve
- Connection Form: Thread
- Pressure: Low Pressure
- Sealing Form: Bellows Globe Valve
- Standard: JIS
- Design Standard: GB/T 12235
- Structural Length: Factory Standard
- Origin: China
- Material: Brass
- Structure: Tubular
- Function: Sfcv Rubber Lobe
- Flow Direction: Reversing
- Application: Industrial Usage, Water Treatment
- Temperature Pressure Rating: GB/T 12224
- Trademark: TRUST
- HS Code: 8481804090
DN 40, 50, 65, 80, 100, 125, 150, 200, 250, 300
Please contact us for more details.
Petroleum, chemical industry, pharmaceuticals, fertilizers, power generation, and more.
**Advantages:**
1. The GB lift check valve is a self-sealing type. The disc is activated by the flow, preventing backflow of the media.
2. The spring-loaded disc allows the valve to operate in any direction.
3. With a reasonable structure, reliable sealing, excellent performance, and an attractive design, it ensures long-lasting and efficient operation.
**Material List (Based on Chinese Standards):**
| NO. |
Part Name |
Carbon Steel Series |
Stainless Steel Series |
Alloy Steel Series |
Low-temperature Steel Series |
| 1 |
Body |
WCB |
CF8 |
WC6 |
LCB |
| 2 |
Disc |
WCB |
CF8 |
WC6 |
LCB |
| 3 |
Washer |
Flexible Graphite + SS304 |
Flexible Graphite + SS304 |
Flexible Graphite + SS304 |
Flexible Graphite + SS304 |
| 4 |
Bonnet |
WCB |
CF8 |
WC6 |
LCB |
| 5 |
Studs |
35CrMoA |
0Cr18Ni9 (304) |
35CrMoA |
0Cr18Ni9 (304) |
| 6 |
Nut |
35# |
0Cr18Ni9 (304) |
35CrMoA |
0Cr18Ni9 (304) |
| 7 |
Spring |
60Si2Mn |
0Cr18Ni9 (304) |
0Cr18Ni9 (304) |
0Cr18Ni9 (304) |
**Technical Specifications:**
| Design Standard |
GB/T 12235 |
| Temperature Pressure Rating |
GB/T 12224 |
| Structural Length |
Factory Standard |
| Flange Dimensions |
GB/T 9113, GB/T 79 |
| Inspection and Test |
JB/T 9092, GB/T 13927 |
| Nominal Pressure |
PN1.6 |
PN2.5 |
PN4.0 |
PN6.4 |
PN10.0 |
PN16.0 |
| Test Pressure (MPa) |
Body Test |
2.4 |
3.75 |
6.0 |
9.6 |
15.0 |
24.0 |
| High Pressure Seal |
1.76 |
2.75 |
4.4 |
7.04 |
11.0 |
17.6 |
| Low Pressure Seal |
0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
| Applicable Temperature |
-196°C ~ 550°C (Different materials used based on temperature) |
| Applicable Medium |
Water, Gas, Oil, and Corrosive Media (Different materials used based on medium) |
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