Performance Specifications
The 375 Detented Shuttle Valve is designed for high-pressure systems up to 5000 psi and weighs 12 grams (13 grams for the Zero Leak version). It features all-metal components made from stainless steel, ensuring durability and long life. The valve is endurance tested to 250,000 cycles and is 100% tested and inspected for reliable performance. It is available in both metal and polymeric seat versions, with the latter offering zero leakage.

Materials
The valve components are made from various stainless steel grades and polyimide for specific parts like the compression seal and seats. Key materials include 15-5PH CRES for the body and seat retainers, 440C CRES for the poppet and balls, and 17-7PH CRES for the spring.

Flow and Leakage Specifications
The valve supports a flow rate of 2.2 GPM minimum at 50 psid with a maximum restriction of 70 Lohms. Shuttling pressure ranges from 25 psid to 100 psid. Leakage rates vary between the metal and polymeric seat versions, with the metal seat allowing up to 1 drop/minute at 5 psid and 1 drop/hour at 1000-5000 psid, while the polymeric seat version ensures zero bubbles/minute of N2 at 500-5000 psid.

Lohms Laws and Liquid Flow Formula
The document introduces the concept of Lohms, a unit for measuring fluid resistance in hydraulic components, analogous to Ohms in electrical systems. The Lohm system simplifies hydraulic computations by compensating for discharge coefficients and dimensional tolerances. The liquid flow formula provided includes compensation factors for liquid density and viscosity, applicable to various liquids and pressure conditions. The units constant (K) is used to eliminate the need for unit conversions.

Volumetric and Gravimetric Flow Units
The document provides tables for converting flow units across different pressure units (psi, bar, kPa) for both volumetric (GPM, L/min, ml/min, in3/min) and gravimetric (PPH, gm/min) flow measurements.