Jianqiao Valve Industry Group Co., Ltd. Jianqiao Valve Industry Group Co., Ltd.
Z43WFlat gate valve

Z43WFlat gate valve

Z43WFlat gate valve
Z43WFlat gate valve

Z43WFlat gate valve
Z43WFlat gate valve

Flat gate valve

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The Flat Gate Valve is engineered with a flat gate and robust body, providing smooth, low-resistance flow and secure shut-off. Suitable for water, oil, gas, and steam pipelines, it delivers reliable operation, easy maintenance, and extended service life, making it ideal for power plants, petrochemical, water treatment, and industrial processing

 

Flat gate valve

Flat Gate Valves are designed for straight-through, low-resistance flow in pipelines, utilizing a flat gate to provide tight sealing and smooth operation. The valve body and gate are made of carbon steel, stainless steel, or alloy steel, ensuring durability under high pressure and temperature conditions.

Key Advantages:

  • Full-port design for minimal pressure drop
  • Flat gate ensures reliable shut-off
  • High-strength body materials
  • Corrosion and wear-resistant
  • Low maintenance and long service life
  • Suitable for water, steam, oil, and gas
  • Bi-directional sealing
  • Easy installation and operation

OEM & Customization Capabilities

OEM Service Scope

  • Custom valve sizes (DN50–DN1200)
  • Custom pressure ratings (PN10–PN420 / Class 150–2500)
  • Special face-to-face dimensions
  • Custom flange standards (ANSI, API, DIN, JIS, BS)
  • Private labeling and logo engraving
  • Special coatings and surface treatments
  • Project-specific testing and inspection
  • Customized actuator integration (manual, electric, pneumatic, hydraulic)

Customizable Options

  • Body material: Carbon Steel, Stainless Steel, Alloy Steel
  • Gate material: Stainless Steel, Duplex Steel, Coated Steel
  • Operation: Manual, Electric, Pneumatic, Hydraulic
  • High-temperature design up to 550°C
  • Corrosion-resistant coatings
  • Special end connections: Flanged, Butt Weld, Socket Weld
  • Locking mechanism for safety

Certifications

  • ISO 9001 Quality Management System
  • API 600
  • API 6D
  • API 598
  • CE Certification
  • PED 2014/68/EU
  • ISO 15848 Fugitive Emission Standard
  • SIL Certification (Optional)
  • ATEX Certification (Optional)
  • EAC Certification
  • SGS Third-Party Inspection

Flat gate valve

 

Parameter Specification
Product Name Flat Gate Valve
Nominal Size DN50 – DN1200 (2" – 48")
Pressure Rating PN10 – PN420 / Class 150–2500
Body Material Carbon Steel, Stainless Steel, Alloy Steel
Gate Material Stainless Steel, Duplex Steel, Coated Steel
Connection Type Flanged, Butt Weld, Socket Weld
Operation Manual, Electric, Pneumatic, Hydraulic
Temperature Range -29°C to +550°C
Sealing Type Metal-to-Metal / Soft Seal
Leakage Class ISO 5208 Class A
Design Standard API 600, API 6D, ASME B16.34
Testing Standard API 598
Applicable Media Water, Steam, Oil, Gas, Chemicals

Flat gate valve

Power Generation

Steam and water pipelines, cooling systems, feedwater systems, turbine isolation.

Oil & Gas

Crude oil, refined products, natural gas pipelines, refinery systems.

Petrochemical & Chemical Industry

Corrosive and non-corrosive chemical pipelines, process lines, storage systems.

Water Treatment & Supply

Drinking water pipelines, wastewater treatment, desalination plants, irrigation systems.

Industrial Processing

Food & beverage, pulp & paper, textile, and manufacturing process pipelines requiring tight shut-off and minimal flow resistance.

HVAC Systems

Hot and cold water distribution, district heating pipelines, and industrial cooling systems.

Material customization plan

Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.

Structural optimization design

For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.

Interface standard adaptation

Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.

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