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SJD1F06 nitrogen supply device (nitrogen sealing valve)
Caliber range: DN20-150mm Pressure range: PN1.0-1.6MPa Applicable temperature: -20~90 ℃ Product application: Nitrogen supply device (nitrogen sealing
Product details
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1、 Product Features
The pressure regulating valve of the Sanjiu nitrogen supply device (nitrogen sealing valve) does not require external energy and uses the energy of the regulated medium itself as the power source. A pressure stabilizing device that automatically controls the flow rate of the valve medium to maintain a constant pressure behind the valve. It has been widely used in natural gas extraction and transportation with continuous gas delivery, urban gas, and industrial production sectors such as metallurgy, petroleum, and chemical industry.
Valve features: High control accuracy, which can be about twice as high as the general ZZY type direct operated pressure regulating valve. Adjusting the pressure difference ratio (such as 0.8MPa in front of the valve and 0.001MPa behind the valve) is particularly suitable for micro pressure gas control.
The pressure setting is implemented on the commander, making it convenient, fast, labor-saving, and time-saving to continuously set during operation.
2、 Valve body materialValve body and cover: HT200, ZG230~450 ZG1Cr18Ni9Ti
Valve core and seat: 1Cr18Ni9Ti Stellite alloy overlay welding
Packing: Polytetrafluoroethylene
Push rod and liner: 2Cr133、 Technical parameters
Nominal diameter DN (mm)
20
25
40
50
80
100
150
Valve seat diameter (mm)
6
15
20
25
32
40
50
65
80
100
125
150
Rated flow coefficient KV
3.2
5
8
10
20
32
50
80
100
160
250
400
Pressure regulation range Kpa
0.5~7 5~20 15~50 30~150
Nominal pressure PN (MPa)
1.0 1.6
Temperature of the regulated medium (℃)
-20~90
flow characteristics
Hurry up
Adjustment accuracy (%)
≤ 3
Execution mechanism film
Effective area (cm2)
200
280
400
Allowable leakage amount
Compliant with ANSI B16.104-1976 Class IV
4、 Main external connection dimensions
Nominal diameter (DN)
20
25
32
40
50
65
80
100
125
150
Distance between flange end faces (L)
150
160
180
200
230
290
310
350
400
480
H
610
610
630
630
640
710
720
730
800
930
H1
330
330
350
350
360
430
440
450
520
650
φ
310
400
D
105
115
140
150
165
185
200
220
250
285
D 1
75
85
100
110
125
145
160
180
210
240
D 2
56
65
76
84
99
118
132
156
184
211
n-d
4-14
4-18
8-18
8-22
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