ZJHF (H) pneumatic three way valve has two kinds of structural forms of confluence and diversion. Thin walled cylinder valve structure using the window, and the spool side oriented, three-way valve can replace the two two valve and a three pass over and wait until the widely used in some occasions, two commonly used in heat exchangers of the regulation, can also be used for simple ratio adjustment. Nominal diameter and pressure is small, the mixing valve can be used for streaming applications, can be used interchangeably, but the nominal diameter greater than 80mm and larger shunt pressure situations, can not be used interchangeably.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.
valve body：
Body form: three way casting ball valve Nominal diameter：25—300mm Nominal pressure：PN1.6 4.0 6.4MPa Connection type: flange typeJB78-59 JB79-59 Material Science：HT200 ZG230—450 ZG1Cr18Ni9Ti ZG0Cr18Ni12Mo2Ti
Upper valve cover：
Normal temperature type：-20~+200℃ Heat dissipation type：-40~+450℃ Gland form: bolt clamp Packing: V PTFE packing, flexible graphite.
Valve assembly：
Valve core type: V type notch core Flow characteristic: linear or equal percentage Material Science：1Cr18Ni9Ti 0Cr18Ni12Mo2Ti
Enforcement agencies：
Type: multi spring diaphragm actuator Diaphragm material: butyl rubber clip reinforced polyester fabric Spring range：0.02~0. 1、0.04~0.20MPa Gas supply pressure：0.14 0.16 0.28MPa Air source connector：M10×1 ambient temperature：-30~+70℃
Leakage: meet the standard ANSIB 16.104IVlevel，Less than ratedKvvalue的0.01% Basic error：±1% Return difference：1%（Belt positioner） 3%(Without positioner) Linear：±1% (Belt positioner) ±5%(Without positioner)Remark: using V type PTFE packing Adjustable range：30:1
Flow coefficient Kv and stroke：
Nominal diameter（mm）
25
32
40
50
65
80
100
125
150
200
250
300
Valve seat diameter(mm)
20
25
32
40
50
65
80
100
125
150
200
250
300
Rated Kv value
Combined valve
6.3
8.5
13
21
34
52
85
135
210
340
535
800
1280
Shunt valve
135
210
340
535
800
1280
Rated travel(mm)
16
25
40
60
100
1、Pneumatic three way film combined valve：
Enforcement agencies
Gas supply pressureMPa
Spring rangeMP
Positioner
Allowable differential pressure（MPa）
Valve seat diameter（mm）
20
25
40
50
65
80
100
125
150
HA2
0.14
0.02~0.10
有
0.79
0.49
0.33
0.20
0.12
0.09
0.05
－
－
0.35
0.08~0.24
0.041.6
3.50.99
2.3（0.67）
1.40.39
0.86(0.24)
0.62(0.18)
0.34(0.10)
－
－
HA3
0.14
0.02~0.10
－
－
0.59
0.35
0.22
0.16
0.09
0.05
0.04
0.35
0.08~0.24
－
－
4.0（1.2）
2.50.71
1.53(0.43)
1.1(0.31)
0.02(0.18)
0.30(0.10)
0.27(0.08)
HA4
0.14
0.02~0.10
－
－
－
－
0.37
0.26
0.15
0.10
0.06
0.35
0.08~0.24
－
－
－
－
2.7（0.76）
1.9(0.54)
1.07(0.30)
0.69(0.20)
0.47(0.13)
Note: the number of the following figures for the triage situation, the other is the same, and the other is the same
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