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Compact Steel Check Valve (GAH11H/GAH61H)
**Product Specifications:**
- **Model No.:** GAH11H / GAH61H
- **Flow Direction:** Unidirectional
- **Standard:** API 602
- **Application:** Industrial Use
- **Pressure Rating:** Class 150 – Class 1500
- **Size Range:** 3/8" – 2"
- **Trademark:** GOOLE, OEM
- **Packaging:** Wooden Crate
- **Certification:** ISO 9001
- **Origin:** Mainland China
- **HS Code:** 8481804090
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**Forged Steel Pressure Seal Swing Check Valve – Class 900–1500**
This forged steel swing check valve is designed for high-performance applications in industrial environments. It meets the highest standards of quality and reliability.
**Standard Specification:**
- **Design & Manufacturing:** API 602, BS 5352, ANSI B16.34
- **Connection Ends:**
- Socket Welded: ANSI B16.11
- Threaded (NPT/BSP): ANSI B1.20.1
- Butt-Welded: ANSI B16.25
- Flanged: ANSI B16.5
- **Inspection & Testing:** API 598
- **Optional Compliance:** NACE MR 0175
- **Tag:** MSS SP 25
**Construction Features:**
- Spring-loaded design ensures reliable sealing even at low pressure.
- Y-pattern flow path minimizes flow resistance for optimal performance.
**Product Range:**
- **Port Options:** Full Port (FP), Reduced Port (RP)
- **Structure Types:** BC (Bolted Cover), WC (Welded Cover), PSC (Pressure Self-Sealing Cover)
- **Disc Types:** Swing, Piston, Ball
- **Pressure Classes:** 150, 300, 600, 800, 900, 1500, 2500
- **Sizes:** 3/8" to 2"
- **End Types:** FLG, SW, Threaded, BW
- **Material Options:**
- Carbon Steel: A105, LF2
- Stainless Steel: F304, F304L, F316, F316L
- Duplex: F51, F55
- Alloy: F1, F5, F5A, F9, F11, F22
- **Special Design:** Y-pattern forged check valve available
**Application:**
Forged steel valves are ideal for small-sized pipelines (less than 2" or DN50). Compared to cast valves, they offer better structural uniformity, higher density, greater strength, and tighter dimensional tolerances. These advantages make them suitable for use in oil, gas, chemical, and power industries.
**Main Parts Material:**
| No | Part Name | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
|----|-----------|------|----------|--------------|--------------|
| 1 | Body | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | Disc | A276 420 | A276 304 | A276 304(L) | A276 316(L) |
| 3 | Gasket | 316 + Graphite | 316 + Graphite | 316 + PTFE | 316 + PTFE |
| 4 | Bonnet | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 5 | Nameplate | SS | SS | SS | SS |
| 6 | Bolt | A193 B7 | A193 B16 | A193 B8(M) | A193 B8(M) |
| 7 | Ball | A182 F304 | A182 F304 | A182 F304 | A182 F304 |
**Applicable Medium:** Water, Steam, Oil, etc. (Acidic media available on request)
**Operating Temperature:** -29°C to 550°C (depending on material)
**Dimensions (mm) and Weights (kg):**
| NPS | RB | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | / |
|-----|----|-----|-----|-----|---|--------|--------|---|---|
| SB | | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | |
| L | | 92 | 111 | 111 | 120 | 152 | 172 | 200 | 220 |
| W | | 65 | 79 | 79 | 97 | 104 | 120 | 139 | 215 |
| BB | | 1.6 | 3.4 | 3.3 | 5.5 | 6.0 | 9.2 | 12.9 | 16.2 |
| WB | | 1.3 | 3.2 | 3.1 | 4.8 | 5.4 | 8.5 | 11.2 | 14.3 |
*Note: Other materials are available upon request.*
This product is ideal for a wide range of industrial applications where reliability, durability, and precision are essential. Whether you're working with water, steam, oil, or other fluids, this check valve offers a robust and efficient solution.