Three-Way ER Valves

A three-way valve can have three different types of operation:

• Diverting:
  A diverting valve has one inlet and two outlets. Flow goes from the single inlet to the selected outlet. Flow can only go to one outlet at a time. The outlet is selected by energizing and de-energizing the coil to actuate the valve. The diverting configuration is most common application of the three-way rotary valves.
• Selecting:
  A selecting valve has two inlets and one outlet. Flow goes from the selected inlet to the single outlet. Flow can only come from one inlet at a time. The inlet is selected by energizing and de-energizing the coil to actuate the valve.
• Universal:
  A universal valve has a supply port, outlet port, and vent port. When the supply is open and the vent is closed, flow travels from the supply to the outlet. When the supply is closed and the vent is open, flow travels from the outlet to the vent. The supply and vent are selected by energizing and de-energizing the coil to actuate the valve.

Three-Way ER Valves

Three-Way Valve Characteristics

No differential pressure required to open. All valves operate from zero to maximum pressure listed in table.

Flow Path
Operation	Diverting	Selecting	Universal
De-Energized	B to C	C to B	B to C
Energized	B to A	A to B	A to B

Pipe Size (inches)	Cv	Solenoid Series	MOPD* (PSIG)	Shipping Weight (lbs)	Dimensions (inches)
					A NPT	A #150 FL	A #300 FL	H	W	D
1/2	4.5	400	200	20	3.25	5.50	6.00	10.7	7.8	7.6
		800	720	25				12.4
3/4	7.8	400	50	22	3.50	5.75	6.50	10.9	7.8	7.6
		800	350	27				12.6
1**	10.5	400	25	29	4.13	7.00	7.25	10.8	7.8	8.1
		800	150	38				12.5

*MOPD = Maximum Operating Pressure Differential Weights and dimensions are appoximate.
Maximum Fluid Temperature 550ºF

**Contact us for pipe sizes larger than 1"

Three-Way ER Valves

Solenoid (Coil) Characteristics

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

Solenoid Enclosure:
Zinc Plated Carbon Steel
NEMA 4 (watertight)
NEMA 7 (explosion-proof)
NEMA 4X optional (Epoxy Coating)
Class 1, Division 1, Groups B, C and D
Operating Temperature code: T2D
Ambient Temperature range: -20° C to +85° C

Conduit Connection:
1/2" NPT

AC voltages suitable with 50 and 60 Hertz

ER Valves have the following certifications:

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

Three-Way ER Valves

Options

S - Single Switch - Indicates when valve is in its energized position. Specifications can be found here.

X - Single Switch Explosion Proof - Indicates when valve is in its energized position. Specifications can be found here.

M - Dual Switch - Indicates when valve is in both its energized and de-energized position. Specifications can be found here.

Y - Dual Switch Explosion Proof - Indicates when valve is in both is energized and de-energized position. Specifications can be found here.

L - Locking Manual Override - Mechanically locks the valve in its energized position.

T- Terminal Box - Enclosure with the terminal strip attached to the coil. Customer is responsible for creating cable entry into the enclosure.

H - High Temperature - For valves running fluid hotter than 350°F.

V- Vertical Pipe - Valve is able to be mounted for verticle flow instead of horizontal flow.

--Other Options--

ETL - Solenoid meets the requirements for use in Class I, Division I, Groups B-D hazardous locations. More information about the 400 and 800 Series solenoid ETL listed mark is available here.

OX - Valve is cleaned of all internal contaminants to allow use for oxygen service.

T5 - Valve is tested for Class V leakage per FCI 91-2-2004 with air.

HY - Valve is tested for Class V leakage per FCI 91-2-2004 with Helium. This is typically done for hydrogen service applications.

 

This list contains the options and features available for the ER series valve. Download ER Series - Model Number Breakdown

* Not all combinations are possible.  Please consult Clark Cooper before ordering.

Three-Way ER Valves

Solenoid Actuated

Solenoid Actuated three-way ER valves will fully actuate between its two positions when power is supplied or lost. This allows these valves to be fully automated.

Solenoid Actuated
Action	Actuates immediately when power is supplied, resets immediately on loss of power
Valves	ER21 (Direct Operated)

Emergency Trip

Emergency Trip three-way valves are useful in applications requiring fluid to be diverted during an emergency condition. The valve actuates once, or 'trips', and remains in its tripped position until it is manually reset to its normal operating, or 'latched', position.

Trip When Energized
Latch	Mechanical
Action	Trips immediately when power is supplied
Reset	Manual reset when the power is off
Valves	ER22 (Direct Operated)

Trip On Loss Of Power
Latch	Electromagnetic (power must be supplied)
Action	Trips immediately on loss of power
Reset	Manual reset when power is on
Valves	ER32 (Direct Operated)