8 inch Gate Valve


8″ Gate Valves are linear motion valves that perform and are designed to minimize the pressure drop in applications that involve viscous liquids.

Through Conduit Gate Valve

Description of 8 Inch Gate Valve:

The internal parts of the ZECO 8 inch gate valve are made by the technology department to choose the most corrosion resistance and wear resistance of the material for production, to ensure that all kinds of corrosive mediums in various pressure various temperature environments pipeline safety operation for a long time, of course, can also according to the actual needs of users and requirements for production, internal parts material ZECO can provide stainless steel internal parts, duplex stainless steel internal parts, and low-temperature steel internal parts to meet the needs of different working conditions. For some special working conditions, ZECO can provide users with a complete set of pipeline valve solutions, so that users can leave the design of the valve system to ZECO and deal with other pipeline problems by themselves.

Specifications of 8″ Gate Valve

  • Body Material: Cast Steel
  • End Style: Flanged
  • Nominal Size: 8 in
  • Actuator Type: Handwheel
  • Softgoods Material: Graphite Packing
  • Standard: API 600 Compliant
  • Standard: NACE MR0175

Features of 8 Inch Gate Valves

  • The handwheel of the ZECO 8 inch gate valve is exposed for a long time, which may cause rust damage and need to be replaced. Considering this problem, ZECO designed the handwheel to be removable when the valve is fully open and ensured that the gate is in the open position. In addition, ZECO can also adopt a painted handwheel to ensure anti-corrosion of the handwheel;
  • ASTM A194 2H and ASTM A193B7 nuts and stud bolts for normal service conditions.ZECO provides ASTM A194 4 and ASTM A193B16 nuts and stud bolts or higher configurations if specified for use at high temperatures. ZECO stainless steel valves are furnished with standard bolts from ASTM A194 8 and ASTM A193 B8 nuts and studs;
  • The valve stem of ZECO 8 inch gate valve is designed to prevent blowout of the valve stem, which is designed to prevent people from injury caused by flying out of the valve stem due to internal pressure problems when people need to replace packing or other parts with pressure in an emergency;
  • ZECO 8 inch gate valve can be produced to 150LB ~2500LB, safe and reliable.
  • Outside screw and yoke
  • Flexible wedge disc
  • All seat rings are seal welded as standard
  • Quality process fully documented, material fully traceable
  • Full range of special trims and options available
  • Standard construction: wcb-trim 8, other options are available

Applications of 8″ Gate Valves

Gate valves satisfy a wide range of applications in the Oil & Gas, Pharmaceuticals, and Manufacturing industries.

Material of 8 Inch Gate Valves

No Part Material
1 Body ASTM A351 CF3M
2 Seat Ring ASTM A182 F316L + STL
3 Wedge ASTM A351 CF3M + STL
4 Stem ASTM A276 316L
5 Bonnet Gasket Graphite + SS316L
6 Bonnet Bolt ASTM A193 B8M
7 Bonnet Nut ASTM A194 8M
8 Bonnet ASTM A351 CF3M
9 Backseat ASTM A182 F316L
10 Stem Packing Reinforced Graphite
11 Handwheel KTH330-08

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