Standard Gate Valve Design Standards

Type of wedge Flexible, solid, parallel slide, expanding wedge
Construction Bolted, welded, extended
End connections Flanged, BW, SW, THR, HUB, PE
Operated Handwheel, gear, bare stem, actuator
Options Extended bonnet, bellow sealed, Heating Jacket, DBB configuration
Bellow seal materials 304 - 321 - 316Ti - Alloy 625 - C276
Design & testing All available international standards according to API - EN - ISO

Size and pressure ranges

  • Size and bore:
    - ANSI 1/2” - 12”
    - DN 10 - DN 300
  • Pressure range:
    - ANSI 125 lbs - 4500 lbs
    - DIN PN 10 - PN 400
  • Temperature range:
    - minus 196 ºC up to 816 ºC
    - minus 320 °F up to 1,500 °F

Hard Facing

Gate Valves

Gate valves are ideally used to stop, allow, or throttle the flow of a process fluid and ideally suited for on-off, primarily liquid, service. The Red Point gate valves can be designed with a rising or nonrising stem design. Gate valves are designed with a Low emmision sealing unit to provide a tight seal around the stem.

The gate valve is an outside-screw-and-yoke, full bore with flexible wedge and rising or non-rising stem. Gate valves are used to shut off the flow of fluid by inserting a rectangular gate or wedge into the path of a flowing fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened enabling gate valves to offer straightway flow with very little pressure drop. Gate valves are bi-directional valves and can provide shut-off in either flow direction.

Hard Facing

Wedge and seats are ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage.
Body and bonnet joint accurately machined with high surface finish stem and packing chamber.
Low emission valve technology with a design optimized for extended service life.
Low compression packing reduces friction and allows more room to re-torque in the field.
Packing ring construction for excellent sealing and a corrosion inhibitor.
Option: live loaded gland bolting
Lantern ring with double packing (upper & lower) for critical services

Applications for Standard Gate Valves

Red Point’s standard gate valves can be deployed for a wide variety of applications in the oil & gas and (petro)chemical industries when high quality and highly reliable valves are required. A few example applications include:

• High-temperature services
• High-cycle and switching services
• Emergency shutdown valves (ESDV)
• High-integrity pressure protection system (HIPPS)
• High-pressure oxygen, nitrogen or hydrogen
• Solids handling (powders, fines, dust and catalysts)
• Polyethylene or polypropylene
• Coal conversion and gasification
• Thermal fluids
• Separator, filter and drying systems
• Compressor stations
• On/off isolation service
• Oil and gas manifolds

Body Material

Commonly used body materials

 

 

 

– Nickel Alloys (Monel®, Inconel®, Hastelloy®, Incoloy®)
– Duplex and Super Duplex
– Carbon steel and low temp carbon steel
– Low alloy steel
– Stainles steel
– Titanium
– Zirconium

View all materials

Get a quote today

To receive a production quote, please submit your RFQ and we will reply within 24 hours to you. Alternatively, send us your request by email: sales @ redpoint.nl

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