Design standard: API 6D
Length of structure: API 6D/ASME B16.10
Flange connecting end: ASME B16.5/ASME B16.47
Butt welding connecting end: ASME B16.25 / ASME B31.8
Fireproof test: API 607/API 6FA
Inspection and test: API 6D
Pressure and temperature rating: ASME B16.34
Product scope: NPS 1-1/2" to NPS 60", CL150 to CL2500
Main body material: WCB, LCB, WCC, CF8, CF8M, etc.
Valve seat material: PTFE, RPTFE, NYLON, DEVLON, PEEK, etc.
Drive device: Handle, worm wheel, electric, pneumatic, etc.
**Main Features**
- **Urgent Grease Injection Device**: Our trunnion ball valves are equipped with grease injection devices for DN >150mm (NPS) on the stem and seat, and in the body cavity for DN <125mm. This helps prevent leakage between the body and stem in case of O-ring or seat ring damage.
- **Double-Block and Bleed Functions**: The front ball sealing design allows each seat to cut off the medium at both inlet and outlet, ensuring double-block functionality. Even when both ends are under pressure, the cavity can be bled through a relief valve.
- **Fire Safe Design**: Our valves are designed with metal-to-metal or graphite seals to prevent internal and external leakage in fire conditions. They meet API 607, API 6FA, BS 6755, and JB/T 6899 standards.
- **Self-Relief in Body Cavity**: When liquid media inside the cavity vaporizes due to high temperatures, the pressure increases, causing the seat to self-relieve, ensuring valve safety.
**Our Advantages**
1. **We Are Factory**: FYV has three production bases and one foundry located in Wenzhou, Shanghai, and Lishui, China. With a factory size of 110,000 square meters, over 600 employees, 60+ technical engineers, and more than 350 advanced machines, our annual revenue exceeds $80 million.
2. **Regional Sales**: We provide localized sales services across the globe. Our team is fluent in multiple languages such as Russian, German, Spanish, and Japanese.
3. **Low MOQ**: We offer samples and small orders due to our own casting capabilities.
4. **OEM Accepted**: Customization according to client specifications is available.
5. **Complete Service**: We respond quickly to inquiries and have a trade manager always online.
6. **Good Quality**: We maintain strict quality control and testing systems for all types of valves.
7. **Quick Delivery**: We keep stock for popular products.
8. **Competitive Prices**: As a manufacturer with its own foundry, we offer cost-effective solutions.
**Material Table**
| No. | Parts Name | Carbon Steel | Low Tem. Steel | Stainless Steel |
|-----|--------------------|--------------------|--------------------|--------------------|
| 1 | Body | ASTM A216-WCB | ASTM A352-LCB/LCC | ASTM A351-CF8/CF8M |
| 2 | Fire safe packing | Graphite | Graphite | Graphite |
| 3 | O-ring | NBR/Viton | Viton | Viton |
| 4 | Spring seat | ASTM A105+ENP | ASTM A350-LF2+ENP | ASTM A182-F304/F316|
| 5 | Spring | 17-7PH/Inconel | 17-7PH/Inconel | 17-7PH/Inconel |
| 6 | Gasket | ASTM A105+ENP | ASTM A350-LF2+ENP | ASTM A182-F304/F316|
| 7 | Adjusting ring | ASTM A105+ENP | ASTM A350-LF2+ENP | ASTM A182-F304/F316|
| 8 | Seat ring | ASTM A105+ENP | ASTM A350-LF2+ENP | ASTM A182-F304/F316|
| 9 | Seat | PTFE/RPTFE/NYLON | PTFE/RPTFE/NYLON | PTFE/RPTFE/NYLON |
| 10 | Trunnion | ASTM A105+ENP | ASTM A182-F304 | ASTM A182-F304/F316|
| 11 | Screw | ASTM A193-B7/B7M | ASTM A320 L7 | ASTM A193-B8/B8M |
| 12 | Drain plug | ANSI 1045 | ASTM A182-F304 | ASTM A182-F304/F316|
| 13 | Sliding bearing | 304+PTFE | 304+PTFE | 304+PTFE/316+PTFE |
| 14 | Ball | ASTM A105+ENP | ASTM A350-LF2+ENP | ASTM A182-F304/F316|
| 15 | Sealant injection | ANSI 1045 | ASTM A182-F304 | ASTM A182-F304/F316|
| 16 | Sliding bearing | 304+PTFE | 304+PTFE | 304+PTFE/316+PTFE |
| 17 | Stem | ASTM A182-F6a | ASTM A182-F304 | ASTM A182-F304/F316|
| 18 | Packing | Graphite | Graphite | Graphite |
| 19 | Gasket | 304+Graphite | 304+Graphite | 304+Graphite/316+Graphite |
| 20 | Gasket | 304+Graphite | 304+Graphite | 304+Graphite/316+Graphite |
| 21 | Bonnet | ASTM A216-WCB | ASTM A352-LCB/LCC | ASTM A351-CF8/CF8M |
| 22 | Bolt | ASTM A193-B7/B7M | ASTM A320 L7 | ASTM A193-B8/B8M |
| 23 | Nut | ASTM A194-2H/2HM | ASTM A194 4 | ASTM A194-8/8M |
| 24 | Packing case | ANSI 1025 | ASTM A182-F304 | ASTM A182-F304/F316|
| 25 | Screw | ASTM A193-B7/B7M | ASTM A320 L7 | ASTM A193-B8/B8M |
| 26 | Fire safe packing | Graphite | Graphite | Graphite |
| 27 | Pin | ANSI 1045 | ANSI 1045 | 304/316 |
| 28 | Gland | ASTM A105 | ASTM A350-LF2/LF3 | ASTM A182-F304/F316|
| 29 | Release valve | ANSI 1045 | ASTM A182-F304 | ASTM A182-F304/F316|
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