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Location：PRODUCTS >> Control valve >> Pneumatic piston cut-off valve
Pneumatic piston cut-off valve
Model: ZSPC
Nominal diameter: DN20-200mm
Nominal pressure: PN1.6 ~ 6.4MPa
Medium temperature: Soft seal: -40 ~ 150 ℃ (normal temperature type); Hard Seal: -40 ~ 200 ℃ 40 ~ 450 ℃ (medium temperature)
Main material: ZG230-450; ZG1Cr18NI9 Ti; ZG0Gr18N12Mo2Ti
Drive mode: pneumatic
Design criteria: GB / T17213
Flange standard: GB / T9113, JB / T79 , HG20594 and other standard
Inspection standards: GB / T4213
Connection Type: FF RF RTJ, Weld (SW BW), Thread (For 1 "or less)

ZSPC pneumatic piston cut-off valve Overview:

ZSPC-type pneumatic piston room temperature, temperature cut-off valve, pneumatic piston actuator and cut off the composition of the machinery. According to the valve sealing surface material can be divided into hard seal and soft seal: According to the structure of the spool can be divided into single-oriented flat and single-guided balance. Has the characteristics of simple structure, reliable action, close, close fast. For non-particulate material, no impurities in the gas, liquid medium, requiring close close fast, quick emptying of the automatic control system.


 First, the model, specifications

model
 Normal temperature
type hard seal
 Normal temperature type of soft seal
 Medium temperature type of hard seal
 Std hard-tight 
seal with handwheel
 Normal temperature type soft seal with hand wheel
 Medium temperature type hard seal with hand wheel
model
 ZSP NC1- 
( 16/64 ) BK
 ZSP NC2- 
( 16/64 ) BK
 ZSP NC1- 
(40/64) B KG
 ZSPC1- 
( 16/64 ) BK
 ZSPC2- 
( 16/64 ) BK
 ZSPC1- 
(40/64) BK
specification
 DN20-200


 Second, the main technical parameters and performance indicators 
  1, cut off the main technical parameters

Nominal pressure mm
 20
 25
 40
 50
 65
 80
 100
 150
 200
Seat diameter mm
 20
 25
 32
 40
 50
 65
 80
 100
 125
 150
 200
Rated flow coefficient Kv
 6.5
 10
 15
 25
 40
 65
 100
 125
 260
 350
 540
Nominal pressure MPa
 1.6; 4.0; 6.4
Travel mm
 10
 16
 25
 30
 40
 60
Flow characteristics
 Go ahead
Medium temperature ℃
 Soft seal: -40 ~ 150 (normal temperature type); Hard seal: -40 ~ 200 (normal temperature type), - 40 ~ 450 (medium temperature type)
Flange size, type
 PN16 by JB78-59 smooth; PN40, 64 by JB / T79.2-94 concave
Body material
 ZG230-450; ZG1Cr18NI9 Ti; ZG0Gr18N12Mo2Ti
Seat, spool material
 1Cr18NI9; 0Cr18Ni12Mo2Ti
On the bonnet type
 Ordinary (room temperature type); heat-chip (temperature type)

Note: Can provide GB, ANSI, JP, JIS, DIN and other flange structure type, flange distance can be determined according to user needs. 
 
 2, the implementation of the main technical parameters and agencies to cut off the relationship between

Nominal diameter mm
 Actuator model
 Cylinder diameter mm
 Travel mm
 Air intake thread
 Remarks
Normal temperature type
 Medium temperature type
 Normal temperature type
 Medium temperature type
 Normal temperature type
 Medium temperature type
 ZSP: Single acting 
ZSP: Double acting
20
 ZSPA B-1
 ZSPA B-1 
ZSN-1
 150
 150
 10
 M16 × 1.5
 M16 × 1.5
25
40
 ZSPA B-2 
ZSN-1
 200
 16
50
65
 ZSPA B-2
 ZSPA B-3 
ZSN-2
 200
 300
 25
 M20 × 1.5
80
100
 30
150
 ZSPA B-3
 ZSPA B-4 
ZSN-3
 300
 400
 40
 M20 × 1.5
 M24 × 2
200
 60


 3, performance indicators

Nominal pressure mm
 20
 25
 40
 50
 65
 80
 100
 150
 200
Seat diameter mm
 20
 25
 32
 40
 50
 65
 80
 100
 125
 150
 200
Soft seal leakage
 Water test 
△ P = △ Pmax mlmin
 0
Pneumatic test 
△ P = 0.35MPa bubble number / min
 1
 1
 2
 3
 4
 6
 11
 18
 27
 45
Hard seal leakage
 Water test MPa
 4.0
 3.0
ml / min
 0.24
 0.30
 0.38
 0.48
 0.60
 0.78
 0.96
 1.2
 1.125
 1.35
 1.8
Gas test 
△ P = 0.35MPa ml / min
 23.3
 29.2
 37.3
 46.7
 58
 75.8
 93.3
 116.7
 145.8
 175
 233.3
Cut off the time S
 0.5
 1
 1.5
 2
 3
 4
Rated travel deviation%
 ± 6


4, to allow the pressure difference:

Nominal diameter mm
 20
 25
 40
 50
 65
 80
 100
 150
 200
Cylinder diameter mm
 150
 200
 300
 400
Air pressure KPa
 500
 Allow pressure drop
 Machine off the air
 Flow away
 4.0
 4.0
 2.6
 2.2
 3.8
 2.6
 2.0
 1.95
 1.59
Flow off
 4.0
 4.0
 4.0
 3.1
 3.1
 3.2
 1.6
 2.0
 1.63
The whole machine open
 Flow away
 4.0
 3.0
 2.1
 1.7
 1.7
 1.1
 0.9
 0.52
 0.43
Flow off
 4.0
 4.0
 4.0
 4.0
 4.0
 3.6
 2.7
 3.4
 2.2


 Third, dimensions:

Nominal diameter DN
 20
 25
 40
 50
 65
 80
 100
 150
 200
L
 PN 
MPa
 1.6
 194
 197
 235
 267
 292
 317
 368
 500
 635
4.0
 650
6.4
 206
 210
 251
 286
 311
 337
 394
 520
 650
H
 65
 70
 85
 90
 100
 105
 125
 170
 205
Without handwheel
 H1
 Normal temperature type
 445
 455
 485
 485
 605
 605
 620
 962
 988
Medium temperature type
 596
 606
 636
 636
 770
 770
 785
 1178
 1226
With hand wheel
 H1
 Normal temperature type
 630
 640
 670
 670
 790
 790
 805
 1087
 1113
Medium temperature type
 781
 791
 821
 821
 955
 955
 970
 1303
 1351
H2
 160
 160
 160
 160
 160
 160
 270
 270
 270
H3
 220
 220
 220
 220
 220
 220
 390
 390
 390


The next：Pneumatic diaphragm with hand wheel through the single-seat control valve
The previous：Pneumatic three-way piston valve
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