Description

Bermad 8 – Altitude Positioning Pilot

This high sensitivity, direct acting, 3-Way positioning pilot is actuated by a pressure responsive diaphragm, which tends to reach equilibrium with the set spring force. The pilot has a tolerance between opening and closing functions of either 0.5m or 1m.

The pilot directs flow and pressure between its ports:
When sensed pressure is above set point, it connects port “C” to “0″
When sensed pressure is equal to set point, it blocks connections between all ports
When sensed pressure is below set point, it connects port “C” with “A” and “Z”
An integral needle valve restricts flow through port “Z

Pressure Rating: 25 bar; 400 psi
Working Temperature: Water up to 60°C; 150°F
Flow Factor:
Closing (0 to C): Kv 0.26; Cv 0.3
Opening (C to A): Kv 0.35; Cv 0.4
Valve Size Range: Small – Medium
Standard Materials:
Body & cover: Brass
Diaphragm Covers: Fusion bonded epoxy coated steel
Elastomers: NBR
Internals: Stainless Steel & Brass
Spring: Galvanized Steel