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ZZYP type self operated pressure control (simulated on-site)
Product model: ZZYP type Product features: ZZYP type self operated pressure regulating valve is a type of pressure regulating valve that does not requ
Product details
ZZYP type self operated pressure control (simulated on-site)
ZZYP type self operated pressure regulating valve is a type of valve that does not require an external energy source. It uses the energy of the controlled medium itself as a power source, introduces it into the actuator chamber to generate thrust, and controls the movement of the throttling element to achieve automatic regulation. It has comprehensive functions of measurement, execution, and control. Can be used in places without gas or electricity. Widely used in the automatic control systems of various equipment gas, liquid, and steam media in the petroleum, chemical, power station, light industry, and printing and dyeing industries for deceleration pressure, stabilization (used for post valve pressure regulation), and automatic control of pressure relief and stabilization (used for pre valve pressure regulation). According to different working conditions of users, different valve core structures and actuators can be selected to achieve the best control effect.
2、 ZZYP Self operated Pressure Regulating Valve Product Model:
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category
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model
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category
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model
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Single seat pressure closed type
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ZZYP-16～64B
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Single seat pressure closed type
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ZZYP-16～64K
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Double seat pressure closed type
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ZZYN-16～64B
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Double seat pressure closed type
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ZZYN-16～64K
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Sleeve compression closed type
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ZZYM-16～64B
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Sleeve compression closed type
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ZZYM-16～64K
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Note: 1. The pressure closed type is used for regulating the pressure behind the valve. When the pressure behind the valve increases, the valve closes to achieve the purpose of pressure reduction and stabilization.
2. The pressure open type is used for regulating the pressure behind the valve. When the pressure behind the valve increases, the valve opens to achieve the purpose of pressure relief and stabilization.
3、 Main technical parameters of ZZYP self operated pressure regulating valve:
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Nominal diameter DN (mm)
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20
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25
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32
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40
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50
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65
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80
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100
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125
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150
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200
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Valve seat diameter DN (mm)
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10
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12
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15
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20
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Rated flow coefficient Kv
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1.8
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2.4
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4.4
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4
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11
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20
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30
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48
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75
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120
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190
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300
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480
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760
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Allowable pressure difference (Mpa)
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2.5
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2.0
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1.6
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1.0
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Nominal pressure (Mpa)
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1.6 4.0 6.4
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Inherent flow characteristics
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Quick open
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Ensure the normal operation of the pressure regulating valve
Minimum pressure difference P (Mpa) |
0.05
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Pressure segmentation range
（Kpa） |
15-50 40-80 60-100 80-140 120-80
160~220 200~260 240~300 280~350 330~400 380-450 430-500 480-560 540-620 600-700 680~800 780~900 800~1000 900~2000 |
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Working temperature ℃
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Liquid ≤ 140; Gas ≤ 80; Equipped with condenser and heat sink ≤ 350
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Suitable for media
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Gas, steam, low viscosity liquid
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Flange size and type
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PN10、16、40GB9113-88、PN64JB/T7-94； PN10， 16 convex, PN40， 64 concave
Alternatively, other standard types of flanges (such as ANSI, JIS, DIN, etc.) can be selected according to user requirements |
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Structure length
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According to GB12221-89 standard
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Can be equipped with accessories
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Condenser (used in situations where the medium is steam), heat sink, etc.
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Execution mechanism signal interface
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Internal thread M16 × 1.5
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Note: The range of pressure segmentation can be designed according to user requirements
4、 The main performance indicators of ZZYP self operated pressure regulating valve are as follows:
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Control accuracy%
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±8
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Allow leakage
Leakage |
Hard seal (L/H)
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Single seat (Class IV): ≤ 10-4 Valve rated capacity: Double seat, socket (Class II), ≤ 5 × 10-3 × Valve rated capacity
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Soft seal (ml/min)
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DN(mm)
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20
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25
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32
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40
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50
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65
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80
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100
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125
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150
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200
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0.15
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0.3
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0.45
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0.6
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0.9
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1.7
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4.0
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6.75
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5、 ZZYP self operated pressure regulating valve external dimensions and weight:
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Nominal diameter (DN)
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20
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25
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32
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40
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50
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65
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80
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100
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125
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150
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200
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L
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PN16、40
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150
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160
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180
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200
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230
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290
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310
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350
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400
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480
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600
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PN64
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230
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230
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260
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260
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300
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340
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380
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430
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500
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550
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650
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B
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233
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332
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373
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522
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673
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980
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1200
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H
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press
power transfer joint Fan enclose Mpa |
15~140
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475
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520
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540
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710
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780
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840
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880
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915
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120~300
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455
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500
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520
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690
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760
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800
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870
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880
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280~500
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450
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490
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510
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680
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750
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790
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860
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870
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480~1000
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445
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480
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670
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740
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780
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850
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860
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600~1500
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445
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570
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600
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820
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890
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950
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950
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1000
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1000~2500
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445
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570
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600
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820
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890
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950
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950
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1000
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A
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press
power transfer joint Fan enclose Mpa |
15~140
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φ282
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φ308
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120~300
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φ232
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280~1000
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φ196
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φ196
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φ282
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600~2500
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φ85
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φ96
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Approximately weight (Kg)
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26
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37
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42
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72
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90
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114
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130
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144
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180
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Pressure pipe interface thread
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M16×15
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ZZYP Self operated Pressure Regulating Valve - Working Principle
The function of the pressure regulating valve used for controlling the pressure behind the valve is a pressure closed type. The principle is as follows: the medium flows into the valve body in the direction of the arrow, passes through the valve core and valve seat, and is then output after throttling. After being cooled by a condenser (used when the medium is steam), the other route is introduced into the actuator to act on the diaphragm, causing the valve core to undergo corresponding displacement, achieving the purpose of pressure reduction and stabilization. If the pressure behind the valve increases, the force acting on the diaphragm increases, compressing the spring and driving the valve core, reducing the valve opening until the pressure behind the valve drops to the set value. Similarly, if the pressure behind the valve decreases, the force acting on the diaphragm decreases. The spring's reaction force drives the valve core, increasing the valve opening until the pressure behind the valve rises to the set value.
A pressure regulating valve used to control the pressure in front of the valve, which operates in a pressure open type. The principle is as follows: the mass flows into the valve body in the direction of the arrow, and after being cooled by the condenser (used when the medium is steam), it is introduced into the actuator to act on the diaphragm, causing the valve core to undergo corresponding displacement, achieving the purpose of pressure relief and stabilization. If the pressure in front of the valve increases, the force acting on the diaphragm increases, compressing the spring and driving the valve core, increasing the valve opening until the pressure in front of the valve drops to the set value. Similarly, if the force in front of the valve decreases, the force acting on the diaphragm decreases. The spring's reaction force drives the valve core, reducing the valve opening until the pressure behind the valve rises to the set value.
Ordering Notice: Please fill in the "Specification Sheet" or indicate the following content when placing an order:
1. Product model
2. Nominal pressure
3. Nominal diameter and rated flow coefficient Kv
4. Signal pressure and spring range
5. Traffic characteristics
6. Valve switching method
7. Working temperature range of the medium
8. Valve body and valve core materials
9. Is there an attachment? Please specify the attachment model
10. Are there any other special requirements
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