Two-Way ER Valves

These rotary valves have one inlet & one outlet. The valve can be either fully open to allow maximum flow, or fully closed. Both Normally Open (fail open) and Normally Closed (fail closed) configurations are available. The valves are designed to stop fluid flow in the direction of inlet to outlet only. The flow direction is shown by an embossed arrow on the valve body casting.

No differential pressure required to open. All valves operate from zero to maximum pressure listed in table.
Clark Cooper ER Series Diagram Clark Cooper ER Series Diagram
Pipe Size (inches) Cv Solenoid Series Max. Operating Pressure Differential (PSIG) Shipping Weight (lbs.) Dimensions (inches)
Direct Operated Pilot Assisted A
NPT
A
150#
A
300#
B C D
Normally Closed Normally Open Normally Closed Normally Open
1/2 5.6 400 500 400 2160 2160 13 3.25 5.50 6.00 12.5 7.0 5.0
800 2160 2000 NA NA 18 14.5
3/4 8.5 400 125 100 1200 1200 15 3.50 5.75 6.50 12.8 8.5 5.5
800 800 720 NA NA 20 14.8
1 11.9 400 50 50 1200 1200 18 4.13 7.00 7.25 13.0 9.2 5.5
800 375 300 NA NA 23 15.0
1-1/2 46.4 400 10 10 500 450 25 4.94 7.63 8.25 15.5 12.0 7.0
800 75 75 1200 1200 30 17.5
2 67.2 400 5 5 200 200 45 6.00 9.00 9.63 16.0 14.0 8.0
800 25 25 720 720 50 18.0
3 152 800 NA NA 275 275 78 NA 9.50 NA 20.5 20.0 10.0
4 215 800 NA NA 150 150 135 NA 11.50 NA 22.0 21.5 11.0
6 468 800 NA NA 75 60 275 NA 16.00 NA 24.0 22.0 11.5
*MOPD = Maximum Operating Pressure Differential Weights and dimensions are approximate and for reference only.
Maximum Fluid Temperature 550ºF

Two-Way ER Valves

Solenoid (Coil) Characteristics

Solenoid Coil:
Class H, Continuous Duty
18” long, 18 gage wire leads

Solenoid Enclosure:
Zinc Plated Carbon Steel - Coil enclosure is completely seal-welded
NEMA 4 (watertight)
NEMA 7 (explosion-proof)
NEMA 4X optional (Epoxy Coating)
Class 1, Division 1, Groups B, C and D

Conduit Connection:
1/2" NPT

AC voltages suitable with 50 and 60 Hertz

ER Valves have the following certifications:
Clark Cooper ER CRN Clark Cooper ER ETL

Solenoid Series Voltage Amps Inrush* Amps Holding
400 24V AC/DC 18.0 1.0
48V DC 12.0 0.6
120V AC/DC 5.0 0.3
240V AC/DC 4.0 0.1
800 24V AC/DC 27.0 2.0
48V DC 25.0 1.0
120V AC/DC 16.0 0.5
240V AC/DC 8.0 0.2

Two-Way ER Valves

Clark Cooper ER Rotary Valve

Features

Fully Electric Valve controls process liquids and gases without ancillary pneumatic or hydraulic systems.

 

  • Normally Closed (Energize to Open): Valve opens when energized and closes when de-energized, also known as "Fail Closed."
  • OR

  • Normally Open (Energize to Close): Valve closes when energized and opens when de-energized, also known as "Fail Open."

Two-Way ER Valves

Emergency Trip

Manually reset, emergency shut off valve immediately stops the flow of fluid when an emergency or shutdown condition exists.

  • Electrically tripped closed: Valve immediately closes upon electrical signal. Manually reset open. *
  • Trips closed on loss of power: Valve immediately closes on loss of power. Manually reset open. *
  • Heat actuated closed: Valve immediately closes at 135°F, 165°F, 212°F, 286°F or 386°F. Manually reset open. +

Manually reset, emergency discharge valve immediately releases fluid when an emergency condition exists. Used for emergency dump, deluge or purge systems.

  • Electrically tripped open: Valve immediately opens upon electrical signal.
    Manually reset closed. *
  • Trips open on loss of power: Valve immediately opens on loss of power.
    Manually reset closed. *
  • Heat actuated open: Valve immediately opens at 135°F, 165°F, 212°F, 286°F or 386°F. Manually reset closed. +

* An operator must manually reset the valve once the trip condtion has been removed.

+ Replacement of the fusible link will be necessary to reset valve.