Description
Buy Pilot Operated Pressure Reducing Valve YK43X/YK43XF PN16–64 Ductile Iron Flanged
The YK43X pneumatic pressure reducing valve, proudly supplied by VALVEHU, is a high-performance industrial control valve designed for gas and low-temperature fluid systems up to 80°C. It is widely used in various gas pipelines, including air, nitrogen, and other non-corrosive gases, offering excellent stability and accuracy in pressure regulation. The valve is engineered with a pilot-operated design, making it extremely responsive to pressure fluctuations and capable of delivering consistent downstream pressure, even under varying inlet conditions.
This valve features a cast steel or cast iron body, ensuring durability under harsh industrial environments. The key internal components such as the guide sleeve, piston, valve seat, and plug are made from corrosion-resistant stainless steel, maximizing operational life and minimizing maintenance. Equipped with an external pilot mechanism, this unit allows for stable and adjustable pressure control without sacrificing flow capacity. Its robust construction and advanced design make it an ideal replacement for conventional partition valves or bypass setups, significantly reducing installation complexity and cost.
The YK43X series supports multiple pressure classes, including PN16, PN25, PN40, and PN64, providing flexibility for a wide range of industrial applications. The flanged connection design simplifies installation and ensures leak-tight performance under high-pressure conditions.
Whether you’re operating in HVAC systems, high-rise building pipelines, or factory gas supply networks, this valve ensures optimal performance with energy efficiency. The YK43X is engineered for systems where precise control, safety, and long-term reliability are essential.
For tailored solutions or expert assistance in choosing the right control valve for your project, feel free to contact VALVEHU’s professional team in China. We are ready to support your operations with quality, expertise, and prompt service.
Technical Specifications
Model: YK43X / YK43XF
Pressure Rating: PN16, PN25, PN40, PN64
Body Material: Cast steel or cast iron
Temperature Range: 0–80°C
Applicable Media: Air, nitrogen, inert gases
Inlet Pressure: Up to 6.4 MPa
Outlet Pressure Range: 0.05–3.5 MPa depending on model
Connection Type: Flanged ends
Control Type: Pilot-operated
Valve Components: Stainless steel piston, guide sleeve, seat
Main Component Materials of the Valve
| Component Name | Material |
|---|---|
| Valve Body, Bonnet, Cover | Cast Iron or Carbon Steel |
| Pilot Valve | Brass or Stainless Steel |
| Piston | Brass |
| Seat & Valve Stem | Stainless Steel |
| Spring | Silicon Manganese Steel |
| Diaphragm | Nitrile Rubber (NBR) |
| Seal Gasket | Nitrile Rubber (NBR) or PTFE |
Main Overall Dimensions (Unit: mm)
| Nominal Diameter (DN mm) | L (mm) PN10/16/25 | L (mm) PN40/64 | H (mm) PN10–64 | H1 (mm) PN10–64 |
|---|---|---|---|---|
| 20 | 160 | 180 | 240 | 75 |
| 25 | 180 | 200 | 245 | 80 |
| 32 | 200 | 220 | 250 | 85 |
| 40 | 220 | 240 | 265 | 100 |
| 50 | 250 | 270 | 280 | 115 |
| 65 | 280 | 300 | 300 | 135 |
| 80 | 310 | 330 | 310 | 145 |
| 100 | 350 | 380 | 330 | 165 |
| 125 | 400 | 450 | 355 | 190 |
| 150 | 450 | 500 | 375 | 210 |
| 200 | 500 | 650 | 440 | 274 |
| 250 | 600 | 750 | 460 | 310 |
| 300 | 700 | 850 | 480 | 314 |
| 350 | 850 | 950 | 520 | 355 |
| 400 | 900 | 1050 | 540 | 395 |
| 500 | 1050 | 1295 | 595 | 430 |
| 600 | 1295 | 1295 | 680 | 515 |
Main Technical Parameters
| Model | YK43X/F-16 | YK43X/F-25 | YK43X/F-40 | YK43X/F-64 |
|---|---|---|---|---|
| Nominal Pressure PN (kgf/cm²) | 16 | 25 | 40 | 64 |
| Test Pressure PS (MPa) | 2.4 | 3.8 | 6 | 9.6 |
| Inlet Pressure P1 (MPa) | ≤1.6 | ≤2.5 | ≤4 | ≤6.4 |
| Outlet Pressure P2 (MPa) | 0.05–1.1 | 0.05–1.1 | 0.05–1.1 | 0.5–3.5 |
| Applicable Media | Air, Liquid Gas, Oxygen | |||
| Operating Temperature (°C) | ≤70°C |
| Performance Deviation Type | Description |
|---|---|
| Pressure Deviation | Under stable flow conditions, if flow and parameters remain constant, and inlet pressure varies within 80–105% of the max working pressure, the outlet pressure deviation shall be ≤5% of P1. |
| Flow Deviation | Under stable inlet pressure and parameter conditions, if flow varies from 20–100% of the maximum range, outlet pressure deviation shall be ≤10% of P1. |
| Static Deviation | Under changes in inlet pressure and flow with fixed parameters, the resulting outlet pressure variation shall be ≤10% of P2. |
FAQ
What is the main function of the YK43X pressure reducing valve?
It controls and reduces high inlet pressure to a stable, lower outlet pressure in gas pipelines.
Is the YK43X suitable for high-pressure systems?
Yes, it supports pressure classes up to PN64, making it ideal for various high-pressure gas applications.
What materials are used in the construction of YK43X valves?
The body is cast steel or cast iron, with stainless steel internal components for corrosion resistance.
Can this valve be used with air and nitrogen?
Yes, it is specifically designed for air, nitrogen, and other non-corrosive gases.
Does the YK43X require frequent maintenance?
No, the valve is built with durable materials and a pilot control design to reduce wear and maintenance frequency.
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