Process Pressure Gauge 4 1/2 In Dial - for Ashcroft 451279Ss04lxll600

Key features

• Process Pressure Gauge, Nominal Dial Size 4 1/2 in, Accuracy +/-0.5 Percent, Gauge Case Material Phenolic, Process Connection Type NPT, Process Connection Gender Male, Lens Material Glass, Process Connection Size 1/2 in, Field Fillable No, Process Connection Location Bottom, Case Color Black, IP/NEMA Rating Not Rated, Primary Pressure Range 0 to 600, Dry Dampening Feature PLUS! Performance, Vibration Resistance Dry Case Vibration-Dampened, Dial Color White
• This pressure‑reducing valve (PRV) reduces excessive incoming municipal water pressure down to safe, stable downstream pressure. Factory preset outlet pressure, adjustable within specified pressure range, effectively safeguards household plumbing, water heaters, fixtures and water‑using appliances from high‑pressure damage.
• FNPT union‑style inlet and outlet simplify installation and future servicing without cutting pipe. Integrated removable stainless‑steel strainer traps sediment, sand and debris to protect internal valve components and extend service lifespan.
• Built‑In Thermal Expansion Bypass Relief Function — Integrated thermal‑expansion bypass relieves excess pressure created when hot water expands inside closed plumbing lines. Prevents dangerous pressure build‑up caused by water‑heater heating cycles, reducing risk of pipe burst, fitting leakage and appliance failure. Pressure‑gauge port allows optional gauge installation for real‑time pressure monitoring.
• for single‑family homes, apartments, multi‑unit dwellings and light‑commercial plumbing installations. Operates across standard cold‑water system temperature range for domestic water supply.

This water pressure reducing valve is a pressure management core component designed specifically for residential, commercial, and light industrial water supply systems. It automatically adjusts and stabilizes within a preset safety range, thereby protecting all downstream water equipment and piping systems from high pressure and water hammer damage. Excessive water pressure not only causes loud water flow noise and splashing of faucets, but also continuously impacts pipeline connections, hoses, and home appliance inlet valves, significantly shortening equipment life and even causing sudden bursting and water leakage. This product uses an internal precision pilot or direct acting balance structure to sense changes in outlet pressure in real time and automatically adjust the opening. Regardless of fluctuations in upstream pressure, it can maintain stable and gentle downstream pressure, making daily water use quieter and safer. Ensure that the valve operates smoothly and without leakage even under alternating hot and cold water and frequent start stop conditions. The product line covers a variety of commonly used thread interface specifications, whether it is ordinary household entry

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