ZSPC Pneumatic Piston Cut-off Valve

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ZSPC Pneumatic Piston Cut-off Valve

Product Model: ZSPC
Nominal Diameter: DN20-200mm
Nominal Pressure: PN1.6 ~ 6.4MPa
Medium Temperature: Soft seal: -40 ~ 150 ℃ (room temperature type); Hard seal: -40 ~ 200 ℃ (room temperature type), - 40 ~ 450 ℃ (medium temperature type)
Main Material: ZG230-450; ZG1Cr18NI9 Ti; ZG0Gr18N12Mo2Ti
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ZSPC Pneumatic Piston Shutdown Valve Overview:

ZSPC type pneumatic piston at room temperature, the temperature cut off the valve, by the pneumatic piston actuator and cutting machine components. According to the valve core sealing material can be divided into hard seal and soft seal: According to the valve core structure can be divided into single-oriented flat and single-oriented balance. With a simple structure, reliable action, tightly cut off, off the fast and so on. Applicable to non-granular, no impurities in the gas, liquid medium, requiring fast tight close, fast venting in the automatic control system.


 First, The Model, Specifications

Model
Room Temperature 
       Hard Seal
Room temperature 
       Soft Seal
Medium Temperature 
       Hard Seal
Std Hard-tight 
       Seal with Handwheel
Room Temperature Soft Seal with Hand wheel
Medium Temperature 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;
Travel mm
10
16
25
30
40
60
Flow Characteristics
Quick open
Medium Temperature ℃
Soft seal: -40 ~ 150 (room temperature type); hard seal: -40 ~ 200 (room temperature type), - 40 ~ 450 (medium temperature type)
Flange Size, Type
PN16 according to JB78-59 smooth; PN40, 64 according to JB / T79.2-94 concave
Body Material
ZG230-450; ZG1Cr18NI9 Ti; ZG0Gr18N12Mo2Ti
Seat, Spool Material
1Cr18NI9; 0Cr18Ni12Mo2Ti
Upper Valve Cover Type
Ordinary type (room temperature type); hot film type (medium 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 Main Technical Parameters Of The Implementing Agencies And Cut Off The Relationship Between Institutions

Nominal Diameter mm
Actuator Type
Cylinder Diameter mm
Travel mm
Inlet Thread
Remarks
Room Temperature Type
Medium Temperature type
Room Temperature Type
Medium Temperature type
Room 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 Leaks
Water test 
       △ P = △ Pmax mlmin
0
Air test 
       △ P = 0.35MPa Bubble / min
1
1
2
3
4
6
11
18
27
45
Hard Seal Leak
Water test
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
Air 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 Time S
0.5
1
1.5
2
3
4
Rated Stroke Deviation%
± 6

4, To Allow Pressure:

Nominal Diameter mm
20
25
40
50
65
80
100
150
200
Cylinder Diameter mm
150
200
300
400
Air Supply Pressure KPa
500
Allow the pressure difference
Machine gas off type
Flow open
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 is open
Flow open
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, The External 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 Hand wheel
H1
Room 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
Room 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
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