Emergency vent Manhole Cover is a kind of rapid relief-pressure device.Its technical performance, main material and main parts’materialare the same as HXF-HR type breather manholes.
緊急放空人孔“設(shè)備材質(zhì)" Materials of construction:
NO
1
2
3
4
5
構(gòu)件
Component
殼體
Body
閥桿
Stem Guide
閥盤
Pressure Disk
閥座
Pressure Seat
閥套
Coating
材質(zhì)
Material
不銹鋼 Steel
鋁合金 Aluminums
碳鋼 Casting
304
316
316L
PTFE
304
316
316L
PTFE
304
316
316L
PTFE
304
316
316L
PTFE
備注:連接標(biāo)準:HG 、GB、 ANSI、 JIS、 DIN等等.
Standard Connection:HG、GB、ANSI、JIS、DIN、ect.
操作壓力:+1961pa (+200mmH2O)
Operating Pressure:+1961pa (+200mmH2O)
緊急放空人孔“尺寸表" Dimension table:
DN
450
500
600
700
750
L
370
380
480
540
600
H
658
708
808
908
955
緊急放空人孔“訂貨須知" Order Construction:
1、訂貨時請注明產(chǎn)品尺寸、操作壓力及材質(zhì)。
Please give clear indication of Dimension,operating pressure and material.
2、當(dāng)需要其他標(biāo)準法蘭、材質(zhì)或操作壓力時請在訂貨時注明。
Please give clear indication of flange,material and operating pressure if you need other standard.