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Product description: NBZZY type self-operated pressure regulating valve (steam pressure reducing valve) does not require external energy, and uses the energy of the adjusted medium as the power source to introduce the actuator to control the position of the spool, and change the pressure difference and flow rate at both ends to make the valve front (or after the valve) The pressure is stable. It has the advantages of sensitive action, good sealing, low pressure set point wave power, etc. It is widely used in the automatic control of gas, liquid and steam medium pressure reduction and pressure stabilization or pressure relief and pressure stabilization.
Item NO.:
XUVAL77-102Lead Time:
45DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
SilveryMOQ:
10NBZZY high pressure self-operated pressure regulating valve
This series of products have three structures: single seat (NBZZYP), sleeve (NBZZYM), double (NBZZYN); the actuator has two types, diaphragm type and piston type; the function type has pressure regulator after pressure reducing valve (type B) And pressure relief valve front pressure adjustment (K type). The nominal pressure grade of the product is PN16, 40, 64; the valve body diameter range is DN20～300; the leakage level has three gears of II, IV and VI; the flow characteristic is quick opening; the pressure section adjustment is from 15 to 2500Kpa.
Features:
1. The self-operated pressure regulating valve (steam pressure reducing valve) does not require additional energy, and can work in places without electricity and gas, which is convenient and saves energy.
2. The pressure range is narrow and cross each other, and the adjustment accuracy is high.
3. The pressure setting value can be set continuously during operation.
4. Regulating the pressure behind the valve, the ratio of the pressure before the valve to the pressure after the valve can be 10:1～10:8.
5. Rubber diaphragm detection, the actuator has high measuring accuracy and sensitive action.
6. The pressure balance mechanism is adopted to make the regulating valve react sensitively and control accurately.
Material of main parts:
Body: ZG230-450, ZG1Cr18Ni9Ti, ZGCr18Ni12Mo2Ti
Spool: 1Cr18Ni9Ti, Cr18Ni12Mo2Ti
Valve seat: 1Cr18Ni9Ti, Cr18Ni12Mo2Ti
Stem: 1Cr18Ni9Ti, Cr18Ni12Mo2Ti
Membrane cover: A3, A3 steel coated with tetrafluoroethylene, stainless steel
Packing: nitrile, ethylene propylene, fluorine, oil-resistant rubber
Connection standard:
Flange standard: according to BG9113-88, JB/79-94
Flange sealing surface type: PN16 convex surface
PN40 and 64 are concave and convex, and the valve body is concave
Structure length according to BG12221-98
Actuator signal interface: internal thread M16×1.5
※ The distance between the valve body flange and the flange end face can be manufactured according to the standard specified by the user. Such as: ANSI, JIS, DIN, etc.
Technical parameter:
Nominal diameter DN(mm)
20
25
32
40
50
65
80
100
125
150
200
250
300
Weight
26
26
37
37
42
72
90
114
130
144
180
200
250
Limited Data
Coefficient (KV)
7
11
20
30
48
75
120
190
300
480
760
1100
1750
Rated stroke (mm)
8
10
14
20
25
40
50
60
70
Nominal pressure PN (MPa)
1.6、4.0、6.4
Pressure regulation
Range (Kpa)
15～50、40～80、60～100、80～140、120～180、160～220、200～260、240～300、280～350、330～400、380～450、430～500、480～560、540～620、600～700、680～800、780～900、880～1000、600～1500、1000～2500、2000~2800
Flow characteristics
Open fast
Adjustment accuracy (%)
±5
Use medium
Hot water, steam, various gases and low-viscosity media
Operating temperature (℃)
≤80, ≤350 (with condenser)
Allowable leakage
Hard seal (l/h)
Single seat: ≤10-4 rated capacity of valve (grade Ⅳ); double seat, sleeve ≤5×10-3 rated capacity of valve (grade Ⅱ)
Soft seal (ml/h)
0.15
0.30
0.45
0.60
0.90
1.7
4.0
6.75
11.10
11.60
Decompression ratio
Maximum 10:1
The smallest 1.25:1
Product Structure:
Packing & Delivery :
Packing Details:all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details:Generally it is 5-10 days if the goods are in stock. or15-30 days if the goods are OEM or not
enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45days.
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NO.139,Xianghe Road,Fangbu Industrial Zone,Tonglu,Hangzhou,China
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