Double Plate Check Valve - Wafer Type
This double plate check valve is designed for efficient flow control in various industrial and commercial applications. It features a split disc design with a bronze disc, cast iron body coated with epoxy, and a wafer connection that meets ANSI 125/150 standards. The valve is equipped with EPDM or Nitrile (Buna-N) seals and a stainless steel spring hinge pin for reliable performance. A lifting ring is standard on valves above 4 inches in size.
**Maximum Operating Temperature:** 180°F (80°C)
**Maximum Operating Pressure:** 200 PSI
**Operation:**
The valve consists of two independent discs hinged on a common shaft. These discs are held parallel against an elastomer seat by torsional spring force, ensuring smooth and leak-free operation.
**Installation:**
Designed for simple flange-supported installations between standard flanges, this check valve can be installed in horizontal or vertical flow-up positions. For horizontal flow, the disc hinge pin must be in the vertical position to ensure proper operation.
**Applications:**
- General utilities
- Chemical industry
- Power generation
- Oil fields
- HVAC systems
- Marine environments
- Petrochemical plants
- Steel industry
- Mechanical contractors
- Commercial construction
**Description:**
1. **Product Name:** Dual Plate Check Valve – Wafer Type
2. **Working Pressure:** PN10 / PN16 / PN25
3. **Testing Standards:** API 598, DIN 3230
4. **Flange Standards:** DIN 2501 PN10/PN16, BS 4504 PN10/PN16, BS 10 TABLE "D"/"E", JIS 2220 10K/16K, ANSI 125/150
5. **Face-to-Face Dimension:** ANSI 125/150, DIN 3203 K3-1999
6. **Applications:** Water systems, industrial pipelines
7. **Operating Temperature Range:**
- EPDM: -10°C to +120°C
- NBR: -10°C to +80°C
- VITON: -23°C to +150°C
8. **Mediums:** Fresh water, seawater, wastewater, food products, steam, various oils, acids, and alkalis
**Materials List:**
| Item | Description | Available Materials |
|------|-------------|---------------------|
| 1 | Body | Grey cast iron GG25; Ductile iron GGG40; CF8M |
| 2 | Spring | Stainless steel 316 |
| 3 | Disc | Stainless steel 316, 304; Aluminum Bronze; Carbon steel |
| 4 | Lifting Eye Bolt | Steel |
| 5 | Seat Gasket | BUNA-N, Resilient seat molded to body |
| 6 | Hinge Pin | Stainless steel 316 |
| 7 | Stop Pin | Stainless steel 316 |
| 8 | Gasket | Teflon |
| 9 | Stop Pin Retainer | Steel |
| 10 | Hinge Pin Retainer | Steel |
This check valve is ideal for applications where space is limited and reliable flow control is essential. Its durable construction ensures long service life without leakage. It is available in sizes ranging from 1.5 inches to 24 inches (DN40-DN600), and it complies with CE and ISO9001 quality standards.
**Origin:** Yantai, Shandong, China
**HS Code:** 84813000
**Trademark:** DS
**Packaging:** Wooden pallet, plywood case, etc.
**Brand:** As per customer request
This product is manufactured according to international standards and is suitable for a wide range of industries. Whether you need it for water treatment, chemical processing, or power generation, this double plate check valve offers a robust and cost-effective solution.
Valve
Valve,Compressor Screw Oil,Air Compressor For Bags,Screw Type Air Compressor
Permanent Machinery Co., Ltd. , https://www.jshjcompressor.com