close
Choose Your Site
Global
Social Media
| Quantity: | |
|---|---|
SL-7120
SHUANGLIN
High or fluctuating inlet water pressure rarely causes a dramatic failure right away — it works quietly in the background instead, shortening the life of seals, fittings, and appliances one pressure spike at a time. SHUANGLIN VALVE's brass pressure reducing valve addresses this at the source, taking unpredictable upstream pressure and delivering a stable, controlled pressure downstream.
Water heaters, washing machines, faucets, and pipe joints are all rated for a maximum working pressure. When incoming supply pressure regularly exceeds that rating — which is common in many municipal and high-rise systems — the result isn't usually a sudden burst, but accelerated wear: weeping joints, premature valve failure, and shortened appliance lifespan. Installing a pressure reducing valve at the point where supply enters a building or a specific system brings pressure down to a safe, consistent level before it reaches sensitive downstream equipment.
A knob on top of the valve allows the outlet pressure setting to be adjusted during installation, letting the same valve be configured for different buildings or system requirements rather than requiring a fixed-pressure model for every application. Once set, the internal piston mechanism automatically compensates for fluctuations in upstream pressure, holding the downstream pressure steady even as supply conditions change throughout the day.
A dedicated port on the valve body accepts a pressure gauge, so the actual downstream pressure can be checked and verified at any time — during initial setup, periodic maintenance, or when diagnosing a pressure-related issue elsewhere in the system. This removes the guesswork of adjusting the valve blind and lets installers confirm the setting matches what the system actually requires.
SHUANGLIN VALVE manufactures this pressure reducing valve in solid brass, rated to PN16, across the DN15 to DN50 size range, with female threaded connections in BSP or NPT to suit regional plumbing standards.
Building water supply mains where municipal pressure exceeds safe levels
Ahead of water heaters and boilers to protect internal components
Multi-story buildings where lower-floor pressure is significantly higher than upper floors
Irrigation systems requiring a stable, reduced pressure supply
Any point in a plumbing system where downstream fixtures have a lower maximum pressure rating than the incoming supply
Payment: T/T (Bank Transfer)
Stock Items: Ships within 7 days
Custom Orders: 30 days production time
Logistics: Sea or air freight, with customs clearance assistance
SHUANGLIN VALVE backs every pressure reducing valve with a 1-year warranty against manufacturing defects, including free repair or replacement where applicable. OEM/ODM services are available for custom pressure ranges, thread types, and private-label packaging on bulk orders.
How do I know if my system needs a pressure reducing valve? If incoming water pressure regularly exceeds the maximum rating of your appliances or fixtures — often the case with municipal supply pressure or lower floors of multi-story buildings — a pressure reducing valve protects them from accelerated wear and potential failure.
Do I need to buy a separate pressure gauge? The valve includes a dedicated gauge port, but the gauge itself is typically sourced separately unless specified as part of a bulk order. Contact us if you'd like gauges included with your order.
Can the pressure setting be changed after installation? Yes. The adjustment knob on top of the valve can be turned to raise or lower the downstream pressure setting at any time, without needing to replace the valve.
What sizes and thread options are available? SHUANGLIN VALVE produces this pressure reducing valve from DN15 to DN50, with BSP or NPT threading. Contact us with your specification for a tailored quotation.
Contact SHUANGLIN VALVE's sales team for a detailed quotation, technical drawings, or samples.
