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Pressure Sealed Check Valve (H44)
**Product Specifications for H44 Pressure Sealed Check Valve**
**Model No.:** H44
**Flow Direction:** Unidirectional
**Standard:** ANSI
**Application:** Industrial, Water Treatment, and Household Use
**Characteristic:** Pressure-Sealed Check Valve
**Design & Manufacture:** BS1868, API 6D, ASME B16.34
**Pre-Temperature Rating:** ASME B16.34
**Face to Face Dimension:** ASME B16.10
**End Connections:** ASME B16.25, ASME B16.5/16.47
**Inspection & Testing:** API 598
**Certificates:** DNV CE 0575, ISO 9001:2008, API 600, API 6D
**Trademark:** VATAC/VANGO or OEM
**Transport Packaging:** Sea-Worthy
**Specifications:** API, ANSI, ASME, DIN, JIS, GB, etc.
**Origin:** China
**HS Code:** 84818010
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### **Key Features & Technical Specifications**
- **Design & Manufacturing Standards:** ANSI B16.5, B16.34
- **Pressure-Sealed Design:** Ensures tight sealing under high-pressure conditions
- **Wedge Design Options:** Solid, Flexible, or Split Wedge for enhanced performance
- **Back-Seat & Renewable Seat Ring:** Allows for easy maintenance and long service life
- **Port Options:** Full Port or Reduced Bore to suit different flow requirements
- **Size Range:** 2" to 32" NPS (Nominal Pipe Size)
- **Pressure Ratings:** ANSI 900, 1500, and 2500
- **End Connections:** Flanged, Buttweld, Socket Weld, Hub Connectors, Compact Flange, or other proprietary connections
- **Material Options:** WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12, and equivalents. Also available in low temperature steels, low alloy steels, stainless steels, duplex stainless steels, and exotic materials
- **Trim Materials:** Available in various grades to match specific service conditions
- **Actuation Options:** Manual, Electric, Hydraulic-Pneumatic Actuators
- **Special Compliance:** MR 0175 and MR 103 upon request
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### **Main Parts and Materials**
| Part Name | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M | C83600/C95800 |
|-----------------|---------|---------|---------|---------|---------|---------|---------|----------------|
| Body | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M | C83600/C95800 |
| Bonnet | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M | C83600/C95800 |
| Disc/Ball/Wedge | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M | C83600/C95800 |
| Stem | F6a | F304 | F6a | F304 | F316 | F304L | F316L | C83600/C95800 |
| Seat/Seat Ring | 13% Cr | SS304 | 13% Cr | SS304 | SS316 | SS304L | SS316L | C83600/C95800 |
| Packing | Graphite/PTFE | - | - | - | - | - | - | - |
| Gasket | SS304 + Graphite | - | - | - | - | - | - | - |
| Bolts/Nuts | B7/2H | L7/4 | B16/4 | B8/8 | B8M/8M | B8/8 | B8M/8M | B8M/8M |
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### **Suitable Media & Temperature Range**
| Media | Temperature Range |
|------------------------------|-----------------------------|
| Water, Oil, Gas | -29°C to 425°C |
| Chemicals (e.g., HNO3, CH3COOH) | -196°C to 427°C |
| Sea Water | -29°C to 220°C |
This check valve is ideal for a wide range of industrial applications, including but not limited to chemical processing, oil and gas, water treatment, and power generation. It is designed for durability, reliability, and compliance with international standards, making it a versatile choice for global markets.