低温闸阀

A cryogenic gate valve is made to specifically withstand temperatures below freezing point in industrial applications. 它通常由不锈钢和青铜制成. 它还带有延长的阀盖，可防止极端温度.

产品介绍

在-40℃以下工作的阀门通常称为低温阀门. 主要用于乙烯, 液化天然气厂,天然气液化石油气, 液化天然气储罐, 接收基地和卫星站,空子设备, 石化尾气分离设备, 液氧, 液态氢, 液氮, 液态氩, 二氧化碳低温储罐及罐车, 变压吸附制氧系统.

设计规范

设计& 生产： API 600；API 602; 学士学位 6364；ASME B16.34；ESC SPE 77/200；MSS SP-134； JB / T 12626

端到端： ASMEB16.10；吨/吨 12221

联系： ASME B16.5；ASME B16.25；HG；国标；JB；JIS；在；从

检查 & 测试 ： API 598 / BS 6364；ESC SPE 77/200；MSS SP-134；JB / T 12622

产品特点

Valve components parts that contacted with the media before deep process must be strict cryogenic treatment according to the requirements of the specifications, 确保阀门部件能充分承受温度变化并引起充气, 收缩 ,座部结构不会因温度变化而产生永久变形

Using long neck bonnet structure that can protect the stuffing box

无论温度如何变化都能保持阀瓣可靠密封, expanding and flexible wedge available

背封座钴铬碳化钨堆焊结构, to avoid the stainless steel material scuffing each other

Cobalt chromium tungsten carbide over laying welding structure of the seat and gate sealing surfaces

Pressure relief hole structure design to prevent valve cavity abnormal pressure change, pressure relief hole can be positioned to seat or gate considering of valve structure , and connected with valve inlet end

阀杆表面 nit 骑乘硬化工艺, top revent valve in the process of opening and closing surface scratches affect the sealing performance

包装根据要求选择无组织排放包装, 确保阀门填料处泄漏，满足环境要求

可根据要求提供焊接接头

绝缘板 (滴水板)可应要求提供

Main components parts combination

注意: Material isavailable upon request

产品范围

公称通径：1/2″ ~48″(DN15~1200)

压力范围：ANSI / ASME150Lb〜1500Lb(PN16〜250Mpa)

适用温度：-196〜150℃

运作方式 ：手册, Gear Box, 电动, 气动