Steel Cord Butt Welding Machine Steel Cord Butt Welding Machine,Steel Wire Mesh Welding Machine,Teel Cord Welding Machine Production Line,Steel Wire Mesh Welding Equipment Jiangyin Keyu Electric Co., Ltd , https://www.wirebuttweldingmachines.com
High Pressure Power Station Check Valve
**Product Specifications:**
- **Model No.:** API 6D
- **Flow Direction:** Unidirectional
- **Standard:** ANSI
- **Application:** Industrial, Water Treatment, and Household Use
- **Size Range:** 2" to 64"
- **Pressure Class:** 150 lbs to 2500 lbs
- **Trademark:** FYV
- **Packaging:** Plastic + Plywood Case
- **Certification:** API / ISO / CE
- **Origin:** China
- **HS Code:** 8481804090
---
**Key Features:**
1. High-pressure check valve designed for demanding environments.
2. Compliant with API 600 and E101 design standards.
3. Pressure-seal structure ensures excellent sealing performance under high pressure.
**Standards Compliance:**
- **Design & Manufacturing:** API 600, ANSI B16.34, E101
- **Face-to-Face/End-to-End:** ANSI B16.10, E101
- **Butt-Welding Design:** ANSI B16.25
- **Pressure-Temperature Rating:** ASME B16.34, E101
- **Inspection & Testing:** API 598, E101
**Materials Used:**
- **Body:** WCB, WC1, WC6, WC9
- **Seat:** 15CrMoA, 12Cr1MoVA
- **Disc:** WCB, WCI, WC6, WC9
- **Stem:** WCB, WCI, WC6, WC9
- **Sealing Ring:** Soft steel or reinforced flexible graphite
**Description:**
- The valve features a pressure-seal structure in the middle cavity, ensuring strong sealing even under high pressure.
- Both ends of the branch pipe are welded, offering flexibility for various connection requirements.
- The valve’s pressure-resistant parts are made from high-quality alloy steel, providing good heat resistance, high load capacity, and reliable operation.
- The sealing face of the disc and valve seat is welded with STL cobalt-based hard alloy, offering high hardness and advantages such as wear resistance, high-temperature resistance, corrosion resistance, and long service life.
- The disc rotates around the pipe base, reducing impact during closing.
- A pin structure is installed internally to minimize leakage.
**Design Standards:**
- **Design Standard:** API 6D
- **Length:** API 6D / ASME B16.10
- **Flange Connection:** ASME B16.5 / ASME B16.47
- **Butt-Weld Connection:** ASME B16.25 / ASME B31.8
- **Fireproof Test:** API 607 / API 6FA
- **Inspection & Test:** API 6D
- **Pressure-Temperature Rating:** ASME B16.34
- **Product Scope:** NPS 1½†~ NPS 60â€, CL150 ~ 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:** Available on trunnion ball valves for DN >150mm (NPS) and in the body cavity for DN <125mm. Prevents leakage in case of O-ring damage.
- **Double-Block and Bleed Function:** Ensures safe operation by blocking both inlet and outlet and allowing pressure release through a relief valve.
- **Fire-Safe Design:** Includes metal-to-metal or graphite seals to prevent internal and external leaks in fire conditions. Complies with API 607, API 6FA, BS 6755, and JB/T 6899.
- **Self-Relief in Body Cavity:** Releases pressure caused by vaporization of liquid media, ensuring valve safety.
**Our Advantages:**
1. **Factory-Based Production:** FYV has three production bases and one foundry in Wenzhou, Shanghai, and Lishui, covering 110,000 sq.m. With over 600 staff and 60+ engineers, we produce over $80 million annually.
2. **Global Sales Team:** Experienced sales teams in Russian, German, Spanish, Japanese, etc., for localized support.
3. **Low MOQ:** Flexible for samples and small orders.
4. **OEM Accepted:** Custom designs based on client specifications.
5. **Comprehensive Service:** Responsive team available 24/7.
6. **Quality Assurance:** Strict QC system and advanced testing equipment.
7. **Quick Delivery:** Large stock for popular products.
8. **Competitive Pricing:** Direct manufacturing with casting capabilities.
**Material Table:**
| No. | Part Name | Carbon Steel | Low Temp. 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 |
**Accessories Table:**
| No. | Accessory Name | Material |
|-----|----------------|----------------------------------|
| 1 | Body | WCB/WC1/WC6/WC9 |
| 2 | Sealing Ring | Graphite |
| 3 | Bonnet | WCB/WC1/WC6/WC9 |
| 4 | Disc | A105/25/12CrMoVA |
| 5 | Nut | 35CrMoa/25Cr2MoV |
| 6 | Rocker | WCB/WC1/WC6/WC9 |
| 7 | Sell the Post | A105/25/15CrMoa/12CrMoVA |
| 8 | Stud | 35CrMoa/25Cr2MoV |
| 9 | Seat | A105/25/15CrMoa/12CrMoVA |
**High Pressure Power Station Check Valve Image:**
