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  • 产品名称：4000系列Y型升降式止回阀

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简单介绍：
4000系列Y型升降式止回阀 汉考克4000系列Y型升降式止回阀的设计为ASME锅炉及压力容器规范第I位置，而且对于那些无泄漏流动逆转预防是很有必要的应用程序推荐。4080类型尤其在高压，高温蒸气，水及化学应用效率。
详情介绍：
4000系列Y型升降式止回阀
汉考克4000系列Y型升降式止回阀的设计为ASME锅炉及压力容器规范第I位置，而且对于那些无泄漏流动逆转预防是很有必要的应用程序推荐。4080类型尤其在高压，高温蒸气，水及化学应用效率。

Series 4000 Y-Pattern Lift Check Valves

  • Description
  • Specifications
  • Documentation
Hancock Gate, Globe, Check Valves, Check Valves, Y-Pattern, Hancock Series 4000 Y-Pattern Globe Lift Check Valves 

Hancock 4000 Series Y-Pattern Lift Check valves are designed for ASME Boiler and Pressure Vessel Code, Section I locations and are recommended for applications where leak-tight prevention of flow reversal is required. The type 4080 is especially efficient in high pressure, high temperature steam, water and chemical applications.

Features & Benefits:

  • All valves are equipped with high temperature Inconel® springs as standard equipment.
  • Disc is fully guided and vented for accurate seat contact, smooth operation and maximum lift.
  • Spring-loaded disc ensures positive closure, regardless of mounting position.
  • The stainless steel disc is hardened, ground and lapped to ensure leak-free sealing over the valve’s full pressure/temperature range.
  • All internal surfaces are accurately machined to provide maximum performance.
  • Seat is overlaid with Stellite or equal hardfacing.
  • The integral seat hardfacing is overlaid directly on to the base material, eliminating any possibility of leakage behind the seat.
  • Flat, precision machined and lapped seating surfaces eliminate damage from high impact seating.
  • Socket weld and butt weld ends are available as standard.
  • Standard body materials are carbon steel (ASME SA105), alloy steel (ASME SA 182 Gr. F22) and stainless steel (ASME SA 182 Gr. F316).
  • All standard valves are made from one-piece die forged bodies.
  • Bonnets and discs are machined from barstock.
  • Full compliance with Section 1 of the ASME Boiler and Pressure Vessel Code and ASME/ANSI B16.34.
     
Specifications
Sizes: 1/2" to 4"; Class 1690, Class 2680, Class 4500
 
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