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Van cửa thép rèn hiệu Zeco (Forged Gate Valve)

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Van cửa thép rèn hiệu Zeco (Forged Gate Valve)


ZECO Valve manufactures a versatile range of Small Bore Forged Steel Gate, Globe, and Check Valves. The portfolio comprises valves in T-pattern and Y-pattern, as well as Cryogenic and Bellows-sealed valves. Forged Steel Gate, Globe, and Check Valves are available in a variety of materials and end connections to meet customer requirements.

What is a Forged Gate Valve?

Forged steel gate valve is a kind of gate valve whose parts are made of forging material. The gate of the forged steel gate valve moves along the vertical direction of the center line of the passage. It is mainly used for shut-off functions in the pipeline. The forged steel gate valve is a widely used valve. It is generally used for the shut-off device with a size≤2”.

ZECO is a forging gate valve manufacturer. Forged gate valves are suitable for various industrial conditions, and can be used for the installation of ground pipelines and underground pipelines. Because forged valves have better corrosion resistance than cast ones, they can avoid the high cost of frequent replacement caused by corrosion. According to the connection mode, forged gate valve can be divided into four types: threaded connection, socket welding connection, butt welding connection, and flange connection. The threaded connection is one of them, which can be mainly used for internal thread connections or external thread connections, and pipeline thread connections. The threaded connection is usually used for the middle and low-pressure pipelines; Socket welded connections are suitable for high-pressure pipelines, usually found in small diameter forged gate valves less than 2 inch; Butt welding is also suitable for high-pressure pipelines, but it usually occurs in large diameter forged gate valves of more than 2 inch; Flange connection can be divided into integral flange and welding flange two kinds, according to the specific working conditions of users to choose; Forging gate valve is mainly used for cutting off, so it can be applied to the pipeline with bidirectional flow of the medium.

Specifications of Forged Gate Valve

  • Basic Design: API 602, ANSI B16.34
  • End to End: DHV Standard
  • Test & Inspection: API-598
  • Screwed Ends (NPT) to ANSI/ASME B1.20.1
  • Socket weld Ends to ASME B16.11
  • Butt weld Ends to ASME B16.25
  • End Flange: ANSI B16.5

Features of Forged Steel Gate Valve

  • ZECO forged gate valve adopts the reverse sealing design. In the long-term use, if the packing needs to be replaced, as long as the valve is fully open, the packing can be replaced online without leakage of the valve;
  • The T-head stem design of ZECO forged gate valve provides a positive disc to stem connection and ensures effective seating operation;
  • The fully guided solid wedge of ZECO forged gate valve reduces wear on seating surfaces;
  • The stud and bolt arrangement of ZECO forged gate valve facilitates packing maintenance.
  • Outside Screw and Yoke(OS&Y)
  • Two Piece self-aligning packing gland
  • Bolted bonnet with spiral-wound gasket
  • Integral backseat

Material of Forged Gate Valve

No Part Material
1 Body ASTM A105
2 Seat Ring ASTM A276 410
3 Wedge ASTM A276 420
4 Gasket Graphite + SS304
5 Stem ASTM A276 420
6 Bonnet ASTM A105
7 Bonnet Bolt ASTM A193 B7
8 Stem Packing Reinforced Graphite
9 Gland ASTM A276 410
10 Gland Flange ASTM A105
11 Handwheel ASTM A197



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