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![133H & 133L [PRV]](https://deshpower.com.bd/wp-content/uploads/2026/05/133H-500x375.jpg "133H")
![133H & 133L [PRV]](https://deshpower.com.bd/wp-content/uploads/2026/05/133L-500x375.jpg "133L")
![133H & 133L [PRV]](https://deshpower.com.bd/wp-content/uploads/2026/05/133H-100x100.jpg "133H")
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133H & 133L [PRV]
The terms 133H and 133L PRV refer to Fisher 133 Series Pressure Regulators (PRV) used in gas pressure control systems.
133H & 133L – PRV (Pressure Reducing Valve) Overview
The terms 133H and 133L PRV refer to Fisher 133 Series Pressure Regulators (PRV) used in gas pressure control systems.
🔧 What it is
- PRV = Pressure Reducing Valve / Regulator
- 133H & 133L are two different pressure ranges in the same 133 Series
They automatically reduce and stabilize downstream gas pressure.