
The WR13 High-Flow Pressure-Reducing Valve, featuring a corrugated Hastelloy diaphragm, large bore with high Cv value, built-in filtration, low-leakage corrosion-resistant materials, and optional oxygen configuration, provides a one-stop solution to your process, cost, and safety issues—such as sluggish pressure regulation, pressure drop at high flow rates, damage caused by corrosive gases, valve jamming due to impurities in the piping, safety hazards associated with high-purity oxygen, excessive gas leakage, and poor compatibility with high-pressure gas sources.
Specifically, the following seven issues are addressed:
1. Resolving issues of unstable flow and excessive pressure drop
With a Cv value of 1.8 and a large-bore design, pressure does not drop during high-flow gas supply. Pressure remains stable even when multiple devices use gas simultaneously, making it suitable for high-gas-consumption processes such as semiconductor manufacturing and hydrogen energy.
2. Resolving issues of poor pressure regulation accuracy and sluggish response
Corrugated Hastelloy diaphragm with high sensitivity; precise pressure control is achieved through fine-tuning of the knob, ensuring linear and smooth adjustment within small pressure ranges.
3. Solves issues of valve body corrosion caused by corrosive or toxic gases and frequent replacement
Hastelloy diaphragm + PCTFE seat; resistant to various corrosive and highly toxic specialty gases, significantly extending valve body service life and reducing operational and maintenance replacement costs.
4. Solves issues of pipeline impurities jamming the valve and internal leakage in the valve core causing overpressure
The inlet is equipped as standard with a 20μm 316L filter screen that intercepts metal debris and welding slag from the pipeline, preventing valve seat jamming and overpressure damage to downstream precision equipment caused by incomplete shutoff.
5. Solves issues of spontaneous combustion and medium contamination in high-purity oxygen applications
Supports specialized models for oil-free, clean oxygen, eliminating the risk of spontaneous combustion from oils and preventing the leaching of impurities that could contaminate high-purity gases; suitable for laboratories and oxidation processes.
6. Addresses gas leakage, safety, and consumable waste issues
Bubble-level internal sealing with external helium leak detection ≤1×10⁻⁹ mbar l/s prevents the leakage of expensive rare gases and toxic gases, meeting the stringent leak detection standards of the semiconductor industry.
7. Solves Issues with High-Pressure Gas Sources and Piping Connection Compatibility
Withstands inlet pressures up to 500 psig, featuring 3/4 NPT large-bore inlet and outlet ports plus a separate 1/4 NPT pressure gauge port—eliminating the need for additional adapters and reducing potential leakage points in the piping system.

Max Inlet Pressure |
500psig |
Outlet Pressure Range |
0~15, 0~30, 0~75, 0~150 |
Component Material |
Seat:PCTFE
Diaphragm:Hastelloy
Filter mesh:316L
|
Working Temperature |
-40℃~+74℃(-40℉~+165℉) |
Leak Rate (Helium) |
Internal: Bubble-tight
External:≤1×10 mbar l/s
|
Flow Coefficient (Cv) |
1.8 |
Body Thread |
Inlet port:3/4NPT
Outlet port:3/4NPT
Pressure gauge port:1/4NPT
|



6L |
05 |
150 |
D | 05 M M 05 |
Z | O2 |
Body Material |
Inlet Pressure P1 |
Outlet Pressure Range P2
|
Porting |
Connection 1/2/3/4 |
Optional Feature | Product Grade |
6L:316L SS |
05:500 psig | 15:0~15 psig | A:2 ports | 05:3/4" Female NPT | None | Standard(BA) |
B:Brass |
30:0~30 psig | B:3 ports | 14:3/4" OD | Z:With a panel nut | O2:Oxygen cleaning | |
| 75:0~75 psig | D:4 ports | 16:1" OD | M:With 2 panel nuts | |||
| 150:0~150 psig | Other ports are available upon request |
M:With gauge (psi/MPa) | ||||
| Refer to the manual for cylinder connections. Other connections are available upon request. |

AFKLOK
The R13 Stainless-steel High-Pressure Nitrogen/Argon/ammonia/helium Pressure Reducing Valve is the supreme service for managing the stream of fuel in crucial requests. Created coming from top quality stainless steel, this valve is immune towards rust can easily endure high stress.
Can easily control the pressure of various kinds of gases consisting of nitrogen, argon, ammonia, helium, along with fantastic precision uniformity along with its own accuracy design. This creates it an option is perfect commercial requests that need accurate command on the stream pressure of gases.
Simple towards set up operate, includes unobstructed directions to create specific setup is hassle-free procedure. The AFKLOK valve functions a style is stabilized allows it towards function efficiently effectively, at high-pressure differentials.
Has a diaphragm actuator that allows precise pressure command is reliable. The actuator was produced towards react rapidly towards any type of visible modifications in pressure, creating specific the outcome stays steady continuous.
functions a durable building is resilient guarantees enduring efficiency however in the most difficult atmospheres. The steel is stainless is immune towards rust, the valve functions first-class secures gaskets that will endure severe temperature levels severe chemical atmospheres.
Produced along with security in your thoughts along with its own exceptional efficiency resilience. The valve functions a range of safety and safety functions pressure is consisting of shutoffs overpressure security gadgets developed towards safeguard each the valve the bordering devices coming from damages in case of a pressure enhance.
The AFKLOK R13 Stainless-steel High-Pressure Nitrogen/Argon/ammonia/helium Pressure Reducing Valve is a flexible dependable service for managing the stream pressure of fuel in requiring commercial requests. Along with its own accuracy design, resilient building solid security functions, this valve provides exceptional efficiency worth for cash.
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