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Gate Valves

Manual ASME Gate Valve

  • Compact Structure: Reasonable design, good valve rigidity, smooth channel, and small flow resistance coefficient
  • Good Sealing Performance: Closing element (gate) uses elastic structure that can automatically compensate during operation
  • Low Fluid Resistance: Smooth channel design, small flow resistance coefficient, and minimal pressure drop loss
  • Wide Application Range: Complies with American standard design and manufacturing standards, suitable for multiple operating conditions
  • Reliable Operation: Manual operation method with simple structure and stable, reliable operation
  • High Strength: High valve body strength, good pressure resistance, and long service life
Download Spec

The closing element of the Manual ASME Gate Valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened or fully closed, and cannot be used for regulation and throttling. The product design and manufacturing comply with American National Standards ANSI B16.34, American Petroleum Institute standards API 6D and API 600. The manual ASME gate valve is suitable for ANSI Class150~2500 pressure ratings and is widely used in pipeline systems in industries such as petrochemical, water treatment, metallurgy and mining. It controls the flow of fluid through the up and down movement of the gate, featuring low fluid resistance, good sealing performance, and small opening height.

Technical Standards

Item Technical Standard
Design and Manufacturing API Spec.6D and API 600
Inspection and Testing API Spec.6D and API 598
Flange Dimensions ASME B16.5
Welding Connection Dimensions ASME B16.25
Pressure Rating ANSI Class150~2500
Operating Temperature -29℃ to +121℃ (Carbon Steel)
Test Standard API 598
Connection Type Flanged Connection, Butt-weld Connection

Basic Models

Model Type Features
Z45W Inside Screw Non-rising Stem Wedge Gate Valve Compact structure with small installation space
Z41H Outside Screw Rising Stem Wedge Gate Valve Observable opening state, convenient maintenance
Z641H Socket Welding Gate Valve Welded connection with reliable sealing
Z540H Bevel Gear Operated Gate Valve Large diameter valve, labor-saving operation

Main Components Material Table

No. Part Name Material
1 Valve Body WCB, LCB, WCC, LCC
2 Valve Cover WCB, LCB, WCC, LCC
3 Gate AISI410, AISI304, AISI316
4 Valve Stem AISI410, AISI304, AISI316
5 Sealing Surface Stellite, WC6, WC9
6 Packing Flexible Graphite, PTFE
7 Bolts 35CrMoA, 25Cr2MoVA
8 Nuts 30CrMoA, ZCuAl10Fe3

No drawing available.