Outside Screw and Yoke Gate Valve DN150
- Body: Ductile Iron (EN GJS500-7) — provides high strength and excellent corrosion resistance for long service life.
- Bonnet: Ductile Iron (EN GJS500-7) — durable structure ensuring pressure stability and leak-tight performance.
- Wedge: Ductile Iron with EPDM coating — resilient rubber sealing guarantees tight shut-off and extended sealing life.
- Stem: Stainless Steel (AISI 420) — corrosion-resistant rising stem for smooth operation and precise control.
- Bonnet Gasket: EPDM Rubber — ensures reliable sealing between body and bonnet, resistant to heat and water.
- Yoke: Ductile Iron (EN GJS500-7) — supports the rising stem and transmits handwheel torque effectively.
- Thrust Washer: Brass/Bronze (CZ122 / CA103) — reduces friction between moving parts for easier operation.
- Handwheel: Carbon Steel — robust design for manual operation, coated for corrosion protection.
- Outside Screw and Yoke Design – The OS&Y structure allows easy visual confirmation of valve position, ensuring reliable open/close indication and smooth stem movement.
- Rising Stem Operation – The stainless-steel rising stem provides smooth, low-torque operation and prevents thread corrosion caused by contact with the fluid.
- Resilient Wedge Sealing – The ductile iron wedge fully encapsulated with EPDM rubber guarantees bubble-tight sealing and long service life.
- High-Strength Ductile Iron Body – Manufactured from EN GJS500-7 ductile iron for excellent tensile strength, shock resistance, and dimensional stability under pressure.
- Durable Bonnet and Yoke Construction – Rigid structure provides superior alignment between stem and wedge, reducing wear and improving reliability.
- Excellent Corrosion Resistance – All internal and external surfaces are epoxy-coated, protecting the valve from rust and environmental damage.
| Specification | Description |
|---|---|
| Valve Design | Complies with BS EN 1171 and EN 1074-2 standards |
| Face-to-Face Length | Meets EN 558-1 Basic Series 14 (F4) standard |
| Flange Connection | Designed per EN 1092-2 standard |
| Valve Testing | Tested according to EN 12266-1 standard |
| Stem Type | Outside screw and yoke (OS&Y) |
| Seat Type | Soft seated, suitable for sewage and water applications |
| Isolation Valve | Can be used for isolation duty |
| NBR Coated Gate | Optional for nonflammable oil applications |
| Actuator Connection | Top flange allows electric actuator mounting |
| Certification | WRAS approved for drinking water |
| Application | Temperature rating varies based on seat material selection |
Outside Screw and Yoke Gate Valve
The outside screw and yoke gate valve is a reliable isolation valve widely used in water supply, oil, gas, and industrial pipeline systems. Designed with a rising stem structure, it provides a clear visual indication of valve status — open or closed. The threaded stem remains outside the fluid, ensuring smooth operation and easy maintenance, which makes it a preferred rising stem gate valve solution for demanding environments.
Made from ductile iron EN GJS500-7, this wedge gate valve offers excellent mechanical strength and corrosion resistance. The EPDM rubber-seated resilient wedge gate valve ensures tight sealing performance and long service life, even under high pressure. With a stainless-steel stem and brass thrust components, it delivers reliable performance across various media types.
Reliable Structure and Smooth Operation
The outside screw and yoke gate valve features a robust bonnet and yoke assembly that maintains precise stem alignment. Its rising stem gate valve design reduces wear and prevents internal thread corrosion, enhancing the valve’s durability. The non-rising wedge provides low torque operation, making it efficient for manual or actuator-driven control.
High Performance and Easy Maintenance
Each resilient wedge gate valve is engineered for easy disassembly and repair without removing the valve from the pipeline. The EN GJS500-7 body and EPDM seat guarantee long-term performance with minimal leakage. In water and fire protection systems, the DN150 outside screw and yoke gate valve demonstrates stable performance and consistent sealing ability under fluctuating pressures.
Trusted OS&Y Gate Valve Supplier
As a professional outside screw and yoke gate valve manufacturer, JHY Group provides reliable and durable wedge gate valves for global markets. Each valve undergoes strict quality inspection to meet international standards. Whether you need a rising stem resilient wedge gate valve or a customized specification, JHY Group delivers solutions that combine strength, precision, and value.
Explore more high-performance valves from XHY Group, your trusted OS&Y gate valve supplier, and browse the complete product line here.
