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Z41W stainless steel flange gate valve-CE ISO ANSI high temperature steam resistant acid base marine

Flanged gate valve adopts flange bolt connection for easy disassembly and reliable sealing under high pressure & temperature. It opens/closes fluid by lifting the gate vertically perpendicular to medium flow; fully open with unobstructed channel for low flow resistance. Classified into outside screw & inside screw, wedge/parallel gate types. Made of cast iron, carbon steel or stainless steel, suitable for complete isolation of liquid & gas in petrochemical, water supply, fire protection and thermal power industries.

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Z41W stainless steel flange gate valve-CE ISO ANSI high temperature steam resistant acid base marine - Image 2
Z41W stainless steel flange gate valve-CE ISO ANSI high temperature steam resistant acid base marine - Image 3
Z41W stainless steel flange gate valve-CE ISO ANSI high temperature steam resistant acid base marine - Image 4
Z41W stainless steel flange gate valve-CE ISO ANSI high temperature steam resistant acid base marine - Image 5

  • This flange gate valve is a common type of shut-off valve.

  • Connection method:

  • This flange gate valve adopts flange connection, featuring strong connection and good sealing performance. The nominal diameter range is generally from DN15 to DN1000.

  • Nominal Pressure:

  • The pressure range is typically between 1.6 MPa and 16.0 MPa, which can meet the requirements of various different pressure conditions. • Applicable temperature range: The working temperature range is generally -29℃ to 550℃, depending on the material of the valve body and the sealing surface material.

  • Valve body material:

  • Commonly available materials include WCB, cast steel, carbon steel, stainless steel, chromium-molybdenum steel, etc. The choice of material can be made based on different media and usage conditions.

  • Applicable media:

  • Suitable for water, oil products, steam, as well as acids, alkalis, ammonia, urea, sulfur-containing natural gas, and other various media. It is widely used in industries such as petroleum, chemical engineering, hydropower, and thermal power generation.

  • Driving method:

  • The flange gate valve driving methods are diverse, including manual, gear transmission, electric, pneumatic, hydraulic, etc., which can meet various operational requirements.

  • Structural features:

  • The flange gate valve sealing pair is well-matched and highly efficient. The sealing surfaces of the gate and the valve seat are made by stacking different hardness types of Samte Coated Cobalt-based hard alloys. The sealing is reliable, with high hardness, wear resistance, high temperature resistance, and corrosion resistance. The valve stem undergoes quenching and surface nitriding treatment, resulting in excellent corrosion resistance, anti-abrasion performance, and wear resistance.

  • Stainless Steel Flange Gate Valve Purchasing Guide

    This OS&Y stainless steel flange gate valve serves as a pipeline shut-off component for water, chemical, food and steam systems. Here are key buying tips for global buyers:
    First, confirm working parameters: PN16 pressure, custom DN sizes and flange standards (GB/ANSI/JIS). Choose 304 for neutral media and 316L for corrosive seawater/acid liquid. It only works for full open/closed cut-off, not flow throttling.
    Verify materials strictly to avoid inferior 201 steel. All body, stem and fasteners adopt stainless steel; we supply SGS material reports and heat-number matching certificates. Our factory holds TS, ISO9001 and optional CE/API6D certifications. Every valve passes 100% hydrostatic sealing testing before delivery.
    Upon receipt, check casting marks, flange dimensions and smooth switch performance. We offer a 12-month warranty, full protective packaging and after-sales support for any manufacturing leakage defects.