Piston Pressure Reducing Valve

Factory direct price, MOQ starting from 1 piece, free sample available.
One-stop valve service provider.

Over 20 years of experience.

Product Categories

Send Your Inquiry Today

Piston Pressure Reducing Valve

Structural features and uses: This series of pressure reducing valves are pilot piston pressure reducing valves. They are composed of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, cylinder sleeve, spring and other parts. The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, regulating spring and other parts. The outlet pressure is set by adjusting the regulating spring pressure, the outlet pressure change is sensed by the diaphragm, and the size of the flow area of ​​the main valve throttling part is adjusted by the pilot valve opening and closing to drive the piston to achieve the pressure reducing and stabilizing function. This product is mainly used in steam pipelines to play a role in pressure reducing and stabilizing.
In stock
No MOQ, Free Samples
Custom-made, OEM/ODM Available.
Committed to a 2-hour Quote Response
One-stop Valve Service Provider

Main technical parameters and performance indicators

Nominal pressure(MPa) 1.6 2.5 4 6.4 10 16
Shell test pressure a(MPa)* 2.4 3.75 6 9.6 5 24
Seal test pressure (MP) 1.6 2.5 4 6.4 10 16
Maximum inlet pressure (MPa) 1.6 2.5 4 6.4 10 16
Outlet pressure range (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
Pressure characteristic deviation (MPa)△P2P GB12246
Flow characteristic deviation (N)△P2G GB12246-1989
Minimum pressure difference (MPa) 0.15 0.15 0.2 0.4 0.8 1
Leakage GB12245-1989

Main connection dimensions

Nominal diameter(DN) Dimensions
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

Main connection dimensions2

Nominal diameter(DN) Dimensions
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
50 270 330 355 135
65 3000 340 360 140
80 330 360 395 170
100 380
380
400 185
125 450
450
415 215
150 500
500
430 225
200 550
550
495 260
250 650 545 310
300 800 600 355
350 850 640 395
400 900 690 435
500 950 780 495

Main parts material

Parts name Parts material
Valve body, Valve cover, Bottom cover WCB
Valve seat, Valve disc 2Cr13
Cylinder sleeve 2Cr13/25 (hard chrome plated)
Piston 2Cr13/copper alloy
Piston ring Alloy cast iron
Guide valve seat, Guide valve stem 2Cr13
Diaphragm 1Cr18Ni9Ti
Main valve spring 50CrVA
Guide valve main spring 50CrVA
Adjusting spring 60sI2Mn
Related Products
  • ×

    Gas Pressure Reducing Valve

    Structural features and uses
    This series of pressure reducing valves are pilot piston type pressure reducing valves. They consist of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, cylinder sleeve, spring and other parts.
    The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, regulating spring and other parts. The outlet pressure is set by adjusting the pressure of the regulating spring, the outlet pressure is sensed by the diaphragm, and the size of the flow area of ​​the main valve throttling part is adjusted by the pilot valve opening and closing to drive the piston to achieve the pressure reduction and stabilization function.
    This product is mainly used for gas pipelines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.

    Extra Features
    • Premium Quality
    • Secure Payments
    • Satisfaction Guarantee
    • Worldwide Shipping
    • Money Back Guarantee
    Open full product page
    0
    0
    In stock
  • ×

    Electric Single Seat Control Valve

    Product Overview

    The ZDLP electric single-seat regulating valve adopts a top-guided structure, a compact valve body, an S-shaped fluid channel, small pressure drop loss, large flow volume, wide adjustable range, and high flow characteristic accuracy. The guide area of ​​the valve core guide part is large, and it has the characteristics of strong seismic resistance. The valve seat closing performance meets the GB/T4213-92 standard. The regulating valve is equipped with a small, sturdy, and high-precision actuator that receives ON-OFF or 4-20mADC or 1~5V DC signals for proportional action. It is more suitable for use in high temperature, low temperature and high pressure occasions that require high reliability and closing performance. The unique cage design can also be used in harsh working conditions such as scouring and cavitation. The valve seat can be used on both sides to increase the service life. It can be quickly installed and disassembled without special tools, and it is cost-effective.

    Extra Features
    • Premium Quality
    • Secure Payments
    • Satisfaction Guarantee
    • Worldwide Shipping
    • Money Back Guarantee
    Open full product page
    0
    0
    In stock
  • ×

    Pneumatic Control Valve

    Product Overview

    The ZJHP type pneumatic diaphragm single-seat regulating valve adopts a top guide structure, a compact valve body structure, an S-shaped fluid channel, a small pressure drop loss, a large flow rate, a wide adjustable range, and a high flow characteristic accuracy.
    The guide area of ​​the valve core guide part is large, and it has the characteristics of strong vibration resistance. The valve seat closing performance meets the GBT4213-92 standard. The regulating valve is equipped with a multi-spring diaphragm actuator, which has a small structure and a large output force. It is more suitable for use in high temperature, low temperature and small pressure difference before and after the valve that require high reliability and closing performance. The unique cage design can also be used in harsh working conditions such as scouring and cavitation. The valve seat can be used on both sides to increase the service life and can be quickly installed and disassembled without special tools. High cost performance.

    Extra Features
    • Premium Quality
    • Secure Payments
    • Satisfaction Guarantee
    • Worldwide Shipping
    • Money Back Guarantee
    Open full product page
    0
    0
    In stock

Customize Your Valve!

Tell Us Your Requirements

Provide valve details such as size, pressure, material, etc.
You can also upload datasheets or drawings directly.

Receive a Quote and Solution ≤ 2 Hours

Fill out this form to get a quote and solution in less than 2 hours, making your projects easier to manage and purchases smoother.

Get Drawings and Datasheets ≤ 6 Hours

For standard valves, we deliver drawings or datasheets within 6 hours. For custom valves or large projects, we can provide them within 24 hours.
Get a quote
Update cookies preferences