Double Interlock

Pre-Action System

The Fig.ES0201-PA Pneumatically Actuated, Double Interlocked, Pre-Action Valve utilizes a Deluge Dry Pipe Valve and a pneumatic pilot system. The Fig.ES0201-PA is controlled by pressure maintained in the pneumatic release system and supervisory pressure maintained in the sprinkler piping system.
The Model ES0201-PA Double Interlocked Pre-Action Valve can also use for electrically and manual operation in case of emergency.
Vertical or Horizontal Installation.
The main valve is the same as Fig.ES0201-V2.
Flanged or Grooved connection.
Rated Working Pressure 300 psi.
The Maximum Air Supply Pressure: 30psi.
UL listed in size 2’’, 2.5”, 3”, 4”, 5”, 6”, 8”, 10”, 12”.

Type	Description
1	Pneumatic-pneumatic actuation
2	Electric-pneumatic actuation
3	Electric-electric actuation

1	Automatic Water Control Valve
2	Emergency Manual Release Station
3	Water Relay
4	Automatic Drain Valve
5	Trim Valve
6	Y-Strainer
7a	Supply Pressure Gauge (0-300 psi)
7b	System Pressure Gauge (0-300 psi)
8	Alarm Test Valve
9	Water Motor Alarm (Optional)
10	Pressure Supervisory Switch (Optional)
11	Hydraulic Actuator
12	Low-Pressure Drain Valve
13	Drain Valve
14	Check Valve
15	Sprinkler Piping Air Pressure Supervisory Switch (Optional)
16	Pilot Line Air Pressure Supervisory Switch (Optional)
17	Accelerator (Optional)
18	Dry Pilot Pneumatic Actuator
19	Sprinkler Piping Pneumatic Actuator
20	Air Regulator
21	Slow Fill Valve
22	Fast Fill Valve
23	Restrictor
24	Solenoid Valve (Optional)