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产品简介

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。

详细介绍

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 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

4000系列Y型升降式止回阀

产品简介

详细介绍

Series 4000 Y-Pattern Lift Check Valves

Features & Benefits:

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