Self-operated Pressure Regulating Valve,flange Connecting, for Water,nitrogen,air Etc. From China Supplier
Self-operated pressure regulating valve introduction
ZZY type self-operated pressure regulator does not need auxiliary external supply source,using energy from media to control trim position,pressure differential and flow.With quick action,good sealing,high precision,and reasonable price advantages,widely used to regulate gas,fluid and steam.
Structure types:
Single-seat type,sleeve type,double-seat type
Actuator types:
Diaphragm type,piston type
Acting mode:
Input pressure regulating;output pressure regulating
Materials
Body:ZG230-450,ZG1Cr18Ni9Ti,ZGCr18Ni12Mo2Ti
Trim:1Cr18Ni9Ti,Cr18Ni12Mo2Ti
Seat:1Cr18Ni9Ti,Cr18Ni12Mo2Ti
Stem:1Cr18Ni9Ti,Cr18Ni12Mo2Ti
Cap:A3,A3 steel coated tetrafluoroethylene stainless steel
Packing:NBR,EPR,CR,oil-resistant rubber
Media:water,steam,oil,nitrogen,air,ammonia gas,corrosion media
Working temp:normal temperature
Connection:flange
Drive mode:servo
Self-operated pressure regulator parameters
DN(mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
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KV |
7 |
11 |
20 |
30 |
48 |
75 |
120 |
190 |
300 |
480 |
760 |
1100 |
1750 |
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Rated travel(mm) |
8 |
10 |
14 |
20 |
25 |
40 |
50 |
60 |
70 |
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PN(Mpa) |
1.6,4.0,6.4 |
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KPA(MP a) |
15~2500Kpa(according to working condition) |
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flow characteristic |
quick-open |
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regulation precision(%) |
±5 |
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operating temp(℃) |
≤350 |
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allowable leakage |
hard sealing(1/h) |
Single-seat:≤10-4rated capacity(IV);double-seat,sleeve type:≤5×10-3rated capacity(II) |
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soft sealing(m1/h) |
0.15 |
0.30 |
0.45 |
0.60 |
0.90 |
1.7 |
4.0 |
6.75 |
11.10 |
16.0 |
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pressure reducing ratio |
Max |
10 |
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Min |
1.25 |
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Structures
Established in 2012,Hangzhou Niuzhuo Valves Industrial Co., LTD. is a manufacturer and exporter that is concerned with the design, development and production of valves.
HZNZ is located in Hangzhou, with convenient transportation axxess.Covering an area of 13000 square meters, HZNZ now have about 100 employees, an annual sales figure that exceeds USD 7.7 million and are currently exporting 22% of our production worldwide.
All of our products comply with international quality standards and are greatly appreciated in a variety of diffrent markets throughout the world.
As a result of our high quality products and outstanding customer service, we have gained a global sales network reaching Korea , Thailand, Malaysia,Mid East and more.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
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