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Pneumatic Gate Valve with Manual
Model: Z641H
Nominal diameter: DN50 ~ 800mm
Nominal pressure: PN1.6 ~ 4.0MPa
Ambient temperature: Standard: -20 ~ 80 ¡æ
Body material: Carbon steel, stainless steel P4, P6
Design basis: GB standard, ANSI standard
Design standard: GB / 12237, ANSI B16.34
length of the structure: GB / 12221, ANSI B16.10
SIZES: GB / 9113, JB / T79 , ANSI B16.5
Experiments and testing: JB / T9092, API 598
Product details
echnical Parameters
Nominal diameter DN50 ~ 800mm
Connection method Flange
Cylinder form Double role
control method Switch type, adjustable type
Nominal pressure 16,25,40bar (Please specify when ordering for higher pressure)
Air pressure Single role: 5 ~ 8bar
Medium temperature W3: -30 to 425 ¡ã C W4: -40 to 425 ¡ã C
Ambient temperature Standard type: -20 ~ 80 ¡æ
Body material Carbon steel (C), stainless steel (P4, P6)
Sealing material Metal Hard Seal (H), Carbide (Y)
Note: Other special sealing materials or special temperature can also be designed according to customer requirements


Main parts material table
Serial number Part Name Material
C P4 P6
1 Body WCB ZG1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
2 Nuts 35 1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
3 bolt 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
4 gate WCB ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
5 Valve stem 1Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
6 Gasket Stainless steel + flexible graphite Stainless steel + flexible graphite Stainless steel + flexible graphite
7 cap WCB ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
8 Nuts 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
9 Rings bolts 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
10 Nuts 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
11 bolt 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
12 filler Flexible graphite Flexible graphite Flexible graphite
13 Packing pressure sleeve WCB 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
14 Packing platen WCB 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
15 Nuts 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
Note: The main components and seals of the material can also be based on the actual conditions or customer requirements design selection



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