Manual Gate Valve

Description

ZECO Valve is a leading manufacturer, supplier and exporter of manual operated gate valve. We offer manual gate valve with different sizes and dimensions for industrial or commercial purposes.

Manual Gate Valve

What is a Manual Gate Valve?

ZECO manual gate valve is named according to the driving mode. The gate valve operated manually is usually a small-diameter gate valve. Because the small-diameter torque is low, it can be opened easily by manpower, so there is no need to waste the user cost plus the turbine head or bevel gear device. As a famous brand product of Shanghai China and Jiangsu China, ZECO is dedicated to promoting the ZECO brand to the world, making the quality and service of ZECO brand become the world famous products, and making the users of oil companies, engineering companies and design companies recognize ZECO more step by step. This is a sense of mission and responsibility of ZECO as a national brand, which makes ZECO valve appear in every corner of the world and protects every pipeline in the world.

Features of Manual Gate Valve

  • The wedge of ZECO manual gate valve is of the single wedge flexible type providing greater sealing capability and lower torque requirements. This also makes the ZECO manual gate valve easier to open and more convenient for manual operation;
  • The wedge of ZECO manual gate valve has accurate guide slots, assuring true alignment and providing full guidance during operation;
  • The seat rings of ZECO manual gate valve are seal welded in the body and are made of carbon steel with hard faced seat surfaces. The seat faces on the wedges are made by welding on 13 CR Stainless Steel or Stellite. In addition, the excellent skills of ZECO welding engineers and the precision debugging of welding robot ensure the perfect welding end;
  • ZECO manual gate valve is provided with a backseat bushing in the bonnet, enabling the replacement of the stem packing when the valve is in the wide open position.
  • Low Emission: < 100 ppm
  • Stem straightness and roundness
  • Stem surface finish to max. 32 Ra
  • Stuffing box surface finish to max. 125 Ra
  • Stuffing box and gland cylindricity
  • Self centering gland design
  • Gland packing: Die-formed graphite rings with braided graphite top and bottom rings
  • Corrugated SS and graphite bonnet gaskets

Product Overview of Manual Gate Valve

Design & Manufacture ASME B16.34, API600, API 6D
Face to Face ASME B16.10
Connection Dimension ASME B16.5, ASME B16.25
Inspection and Test ISO5208, API598
Size Range 1/2in to 48in
Pressure Class 150/Class 300/Class 600/Class 900/Class 1500
Medium Temperature -30°C to 450°C
Material Options Stainless steel 304/316/316L or WCB

Material of Manual Gate Valve

No Part Material
1 Body ASTM A216 WCB
2 Seat Ring ASTM A105 + STL
3 Wedge ASTM A216 WCB + 13Cr
4 Stem ASTM A276 410
5 Bonnet Gasket Graphite + SS304
6 Bonnet Bolt ASTM A193 B7
7 Bonnet Nut ASTM A194 2H
8 Bonnet ASTM A216 WCB
9 Backseat ASTM A182 F6a
10 Stem Packing Rainforced Graphite
11 Handwheel KTH330-08

Applications of Manual Gate Valve

  • Petroleum refining
  • Chemical processing
  • Power generation
  • Applications that require manufacturers to be on an approved manufacturer list (AML)

Manual Operate Gate Valve Manufacturer & Factory

If you are looking for gate valve manufacturers, you are in the right place here. ZECO Valve is an industrial gate valve manufacturer in China. Our main product is ANSI API 600 Gate valve. Other standards also could be customized. We offer all kinds of gate valves in all materials like WCB and stainless steel, design and pressure ranges for your choice. We also offer customized valve service for you to meet your requirements help your project runs well. Welcome to consult us to select the right gate valve basic on your project requirements.