用途

Purpose

本产品广泛应用于自来水、污水、建筑、化工等行业的给排水系统中。一般作为启闭设备使用。

This product is used for the water supply and drain-out system in tap water, sewage, chemical etc.trades and usully as an open-closedevice.

特点

Characteristics

单/双偏心结构，密封严密，使用寿命长。

Single/double eccentric structure,strictly sealed, long durable.

执行标准

Execution standard

设计制造标准 Design and manufacturing standards:GB12238-2008

法兰连接尺寸Flange connection size : GB/T 9113.1、GB/T 17241.6

结构长度Structure length:GB/T 12221

压力试验Pressure test : GB/T13927

性能规范

Performance specification

公称压力Nominal pressure: PN10、PN16

公称通径Nominal diameter:DN5O-2000mm

强度试验 Strength test:1.5MPa、2.4MPa

密封试验Seal test:1.1MPa、1.76MPa

适用温度Applicable temperature:≤120c

适用介质Applicable medium:水、低温蒸汽、油品、煤气、海水、污水等Water, low temperature steam, oi, gas, water, sewage, etc

主要零件材料

Main parts materials

阀体—灰铸铁/球墨铸铁/铸钢

Body-gray cast iron/ductile iron/cast steel

阀板—灰铸铁/球墨铸铁/铸钢

Disc—gray cast iron/ductile iron/cast steel

阀杆—不锈钢

Stem-Stainless steel

密封圈一丁腈橡胶/三元乙丙/氟橡胶

Seal ring ——NBR/EPDMfluorine rubber

填料─柔性石墨型橡胶垫

Packing-Flexible graphite/v type rubber mat