Rising Stem Gate Valve

• Valve Body: Ductile Iron (QT450)
• Bonnet: Ductile Iron
• Gate: Ductile Iron with EPDM rubber sealing
• Bolts: Carbon Steel Grade 8.8 with wax/tin coating
• Stem Nuts: Ductile Iron or Brass
• Stem: Stainless Steel 316/316L
• Gasket: EPDM rubber
• O-ring Seal: EPDM rubber
• Stem Bearing: Carbon Steel
• Support Column: Ductile Iron

• Visual Position Indication: The rising stem provides a clear visual indication of valve position and whether the valve is open or closed.
• Outside Screw and Yoke: The OS&Y stem design allows easy access for maintenance.
• Non-Rising Handwheel: Handwheel remains stationary during valve operation for safer operation.
• Metal Seated: Ductile iron gate with stainless steel seating provides durable shutoff and extended service life.
• Resilient Seated: EPDM rubber seated valves provide drip-tight bi-directional shutoff.
• End Connections: Flanged ends per EN 1092-2 standard allow easy installation.
• Compliant Design: Manufactured according to BS EN 1171 and EN 1074-2 standards.
• Testing: Factory tested per EN 12266-1 to ensure quality and performance.

What Makes Rising Stem Gate Valves Unique

The Quality Promise of JHY Valve Group’s Rising Stem Gate Valves

1. Body Material: The valves are made of GGG40/50 ductile iron, cast in JHY’s own foundry. The material is qualified under EN-GJS-400-15 or EN-GJS-500-7, guaranteeing a spheroidization rate of over 96%!
2. Spindle quality: The duplex stainless steel spindle ensures smooth operation. Its one-piece design offers better resistance to axial load and can withstand high operation torques.
3. Sealing capabilities: Thanks to O-rings in the cap, the seal functions flawlessly over a long usage life.
4. Superior Anti-Corrosion: The valve’s bolts and nuts carry DACROMET® or GEOMET® approval, a testimony to their excellent anti-corrosion properties that ensure stability.
5. Newly Designed Rubber Disc: encapsulated by JHY, the design guarantees a low operating torque even under high pressure, preventing damage or corrosion generated by friction.
6. Free Wedge Nut Design: This design reduces stem bending forces and makes it easily replaceable.
7. Superior Coating: With a shot-blasted casting treated with a WRAS-approved epoxy powder coating, the valve comes with a thick, smooth, and adhesive coating that won’t crack – all done using eco-friendly technology.