Full Capacity Welded Safety Valve for High Pressure Steam Systems - 12.5 MPa, 540°C Temperature Rating
Price:
USD49.9/pc - USD99.9
MOQ:
1set
Delivery Time:
14 days
Brand:
JGPV
Product Description
Full Capacity Welded Safety Valve
Professional overpressure protection device designed for high-pressure and high-temperature steam applications in large thermal power plants. Features include high discharge coefficient, precise opening pressure, minimal pressure differential, and reliable sealing performance.
Technical Specifications
Performance Parameters
| Model | PN | Spring Setting Pressure | Working Temperature | Medium Application |
|---|---|---|---|---|
| A68Y-200 | 200 | ≤12.5 MPa | ≤425°C | Steam |
| A68Y-P54/100V | P54/100V | ≤11.8 MPa | ≤540°C | Steam |
Material Composition
| Model | Body & Bonnet | Seat & Disc | Stem & Guiding Sleeve | Sealing | Spring |
|---|---|---|---|---|---|
| A68Y-200 | WCB | Chromium Stainless Steel | Chromium Stainless Steel | Chromium Stainless Steel Overlay Welding of Hard Alloy | High Quality Chromium Vanadium Steel |
| A68Y-P54/100V | Chromium Molybdenum Vanadium Steel | Chromium Nickel Titanium Stainless Steel | Chromium Nickel Titanium Stainless Steel | Chromium Nickel Titanium Stainless Steel Overlay Welding of Hard Alloy | High Quality Chromium Vanadium Steel |
Key Features & Design Advantages
- Nozzle-Shaped Valve Seat: Utilizes Lafarre nozzle principle for supersonic steam flow and high emission coefficient. Plasma-sprayed cobalt-based hard alloy sealing surface provides exceptional wear and corrosion resistance.
- Thermal Stress Compensation: Innovative two-part valve disc design (valve disc and hot valve disc) utilizes thermal deformation for optimal sealing. Tongue-shaped hot valve disc structure prevents leakage through elastic effects.
- Precision Spring Design: Custom-engineered springs for specific set pressures and opening/closing pressure differentials, ensuring reliable performance.
- Enhanced Durability: Valve stem head and valve disc gasket feature cobalt-based hard alloy welding for superior hardness, wear resistance, and extended service life.
Application Scope
Specifically designed for 220t/h to 410t/h boilers matched with 50,000 KW to 100,000 KW power generation units. Suitable for installation on boiler drums, superheater headers, reheaters, and pressure vessels to prevent pressure exceeding allowable limits and ensure operational safety.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shanghai Jianggong Valve Manufacturing Co., Ltd.
Location
No. 5089, Nanzhu Road, Zhuqiao Town, Pudong New Area, 201324, P. R. China
Contact Person
David Chen