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Port valve plug (PRA)/(PRB)

Description & Features

Designed for use within the Salami VD8A Series, this port valve plug (PRA)/(PRB) serves as a working section component in multi-section directional control valve assemblies. It is rated for a maximum operating pressure of 5,100 PSI on ports P, A, and B, with a maximum back pressure of 363 PSI on the outlet port T and a flow rating of 20 GPM.

Compatible with mineral oil and standard hydraulic fluids, the plug functions across a fluid temperature range of -4°F to 185°F with standard NBR seals, and suits fluid viscosities between 12 and 75 cSt under optimal conditions. Recommended filtration is ISO 4406: 19/16. Technical data is based on mineral oil at 16 cSt with a contamination level of 19/16 per ISO 4406.

SKU: R23577520

Supplier Part Number (MPN): R23577520

Alternate Part Numbers: C1MU50

Specifications

Brand Salami	Key Port Valve	Sg Fluid Viscosity 12 cSt to 75 cSt Optimal, 10 cSt Minimum, 400 cSt Maximum	Sg Internal Leakage 1.52 to 2.13 cu-in/min at 2285 psi	Sg Maximum Back Pressure 363 psi on Outlet Port T	Sg Recommended Filtration 19/16 um	Suitable For Use With VD8A Series, VDM8 Series Directional Valves and Auxiliary Valves

Product Questions & Answers (1)

Question by: Terry H on Feb 19, 2026, 7:35 PM

What’s the deal with the operating temperature for this valve plug? I just wanna make sure it can handle what I'm throwin' at it.

Answer by: Customer Support on Feb 20, 2026, 9:33 PM

The safe fluid temperature range is -4°F to 185°F when using standard NBR seals. Keep in mind that the optimal fluid viscosity is between 12 and 75 cSt, though it can handle 10 cSt to 400 cSt.