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Y43h/Y Pilot Piston Type Steam Pressure Reducing Valve
Basic Info

Model No.:  Y43H/Y

Product Description Model NO.: Y43H/Y Connection: Flange Structure: Diaphragm Valve: Pressure Reducing Valve Pressure: 150lb- Trademark: YI CHEN Specification: CE API ISO HS Code: 8481804090 Temperature: Low Temperature Valve Seat: Single-Seat Material: Wcb Size: 1"-24" Suitable Medium: Steam Transport Package: Plywood Case Origin: China YI CHEN Y43H steam Pressure reducing valve
 Structural characteristic and purpose
This series reducing valve is pilot piston type reducing valve, mainly composed of main valve and pilot valve. The main valve consists
of valve seat, main valve disc, piston, cylinder sleeve, and spring. The piston valve consists of valve seat, valve flap, membrane, spring and adjusting spring. Set the outlet pressure through adjusting spring, sense the change of pressure of outlet with membrane, adjust the flow area of throttling part of main valve through open and close of pilot valve and drive the piston, to realize the function of reducing and regulating valve.
The product is mainly applied on steam piping, to reduce and regulate the pressure.
Name of component Material of component
Valve body, valve cover, seat cover  
WCB
Valve seat, valve disc  
2Cr13
Cylinder sleeve  
2Cr13 /25 (hard chrome plating)
Piston  
2Cr13 /copper alloy
Piston ring  
Alloy cast iron
Pilot valve seat, pilot valve rod  
2Cr13
Membrane  
1Cr19Ni9Ti
Spring of main valve  
50CrVA
Main spring of pilot valve  
50CrVA
Adjusting valve  
60Si2Mn
main technical parameters and indexes of performance           material of main component
Nominal pressure (Mpa)  
1.6
 
2.5
 
4.0
 
6.4
 
10.0
 
16.0
Tested pressure of shell(Mpa)  
2.4
 
3.75
 
6.0
 
9.6
 
15.0
 
24
Sealing test pressure (Mpa)  
1.6
 
2.5
 
4.0
 
6.4
 
10.0
 
16.0
Max. inlet pressure (Mpa)  
1.6
 
2.5
 
4.0
 
6.4
 
10.0
 
16.0
Pressure range of outlet(Mpa)  
0.1-1.0
 
0.1-1.6
 
0.1-2.5
 
0.5-3.5
 
0.5-3.5
 
0.5-4.5
 
Difference of pressure characteristic (Mpa)P2P
 
GB12246-1989
 
Difference of flow characteristic (Mpa)  P2G
 
GB12246-1989
Min. differential pressure(Mpa)  
0.15
 
0.15
 
0.2
 
0.4
 
0.8
 
1.0
Leakage quantity  
GB12245-1989
the shell test does not include membrane and top cover
 flow coefficient (Cv)
DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 500
CV 1 2.5 4 6.5 9 16 25 36 64 100 140 250 400 570 780 1020 1500
external dimension                    unit:mm            Ÿ      External dimension                 unit:mm         Ÿ      connecting manner:
 
DN
external dimension
L H H1
1.6/2.5Mpa 4.0Mpa
15 160 180 295 90
20 160 180 330 98
25 180 200 330 110
32 200 220 330 110
40 220 240 345 125
50 250 270 345 125
65 280 300 350 130
80 310 330 385 160
100 350 380 385 170
125 400 450 400 200
150 450 500 415 210
200 500 550 475 240
250 650 525 290
300 800 580 335
350 850 620 375
400 900 660 405
450 900 730 455
500 950 750 465
 
DN
external dimension
L H H1
6.4Mpa 10.0/16.0Mpa
15 180 180 305 100
20 180 200 340 105
25 200 220 340 120
32 220 230 340 120
40 240 240 355 135
50 270 300 355 135
65 300 340 360 140
80 330 360 395 170
100 380 400 185
125 450 415 215
150 500 430 225
200 550 495 260
250 650 545 310
300 800 600 355
350 850 640 395
400 900 690 435
500 950   780 495
flange: RF FM RJ
standard: JB79 GB9113 ANSI B16.5
ŸNotice of order : Product model Nominal pressure nominal latus rectum
Connecting flange standard Rated flow coefficient (Cv) Inlet pressure
Range of pressure adjusting
 
Working medium and temperature of medium

FAQ
1.Q: What is your main market?
A: Our main market is North America, South America, Eastern Europe, Southeast Asia, Africa, Mid East, Eastern Asia, Western Europe.
2.Q: Are there products standard?
A: Our model is standard, if you have specific demand, pls tell us.
3.Q: Do you have interest to do our own design items?
 A: Absolutely! It's our pleasure.

Our Services
1)Our advantage:
 We are the manufacturer with almost 20 years experience on valves. Best price,quality and service, Also we can control the production status. Shanghai YI CHEN team with strong ability in designing and after sell service. Cooperation with Carrier has improved our quality to a new level.
 2)Terms of payment: T/T, L/C, Western union.
 3)Shipment: average 20-25days after receiving deposit.
 4)Delivery:  Shanghai/Ningbo ,by sea or air.
 5)Gurantee: One year since delivery.
 6)Inspection: 100% testing for all the valves.
 7) All kinds of CERTIFICATE OF ORIGIN.
 Welcome to choose SHANG HAI YI CHEN , we are always ready!
 
 

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Product Categories : Pressure reducing valve