BERMAD 400E-Y, Инструкция по установке, эксплуатации и обслуживанию

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400E-DP-Y
Safety First
BERMAD believes that the safety of personnel working with and around our equipment is the most important consideration.
Please read all safety information below and any other relevant source before attempting to perform any maintenance
function. Comply with all approved and established precautions for working with your type of equipment and/or
environment. Authorized personnel should perform all maintenance tasks.
Prior to performing a procedure, read it through to the end and understand it. If anything is not clear, ask the appropriate
authority. When performing a procedure, follow the steps in succession without omission.
1.
General
The BERMAD 400E-Y Water Control Valve designed for vertical or horizontal installation.
The 400E-DP straight-through design provides high flow capabilities with minimum head loss and the removable cover
enables quick in-line service. The elastomeric assembly can be easily removed from the valve body with no need for
disassembling of the valve from the line.
1.2 Optional Features

Valve Position Indicator and Namur interface for industrial switch box

Valve Seat Ring

Alarm Pressure Switches

Water Motor Alarm

Seawater construction

Drain Valves – Upstream and/or Downstream
1.3 Approvals
The Bermad 400E-DP Dry Pipe Valve is UL Listed and FM Approved when installed with specific components &
accessories. Refer to the current UL and/or FM fire protection equipment directory. Consult Bermad for any component
approval recently to appear in any equipment directory.
1.4 Principal Of Operation
The Bermad 400E-DP that is assembled with specific trim is suitable for systems that include adequate detecting and
piping systems with open nozzles, the valve prevents water from entering the system piping and kept closed by pressure
applied to the control chamber through a restricted priming line.
In the SET position (Fig 1-a), the water pressure supplied through the priming line is trapped in the control chamber of
the water control valve and presses the valve seal disc down, thereby sealing the valve and keeping the system piping
dry. Under FIRE conditions, when the pressure is released from the control chamber (Fig 1-b) by the opening of the
automatic releasing device or by manual release, the water control valve opens and allows the inlet supply water to flow
unrestricted through the valve and into the system piping and alarm devices.
WARNING:
Whenever the handle of the Manual Emergency Release is pulled, pressure is released from the control
chamber, the water control valve will open, and water will flow into system piping and alarm devices.
Fig 1 - a: Valve Closed (Set Position) Fig 1 - b: Valve Open (Operating Conditions)
Pneumatic
Manual
Pneumatic
Manual