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ASCO


PILOT OPERATED
3 Way N/C - 4 Way
Pad Mounted Solenoid Valves
Aluminum or 316 s.s. Bodies - ¼" N.P.T.
8551
Series
8551 Series Valve


General Description
These general purpose valves have a NAMUR pad mount interface for mounting direct to the actuator. They have unique seal technology which uses a combination of hard T-seals and flexible O-rings to provide buble tight shutoff, resistance to dirt, and a multi-million cycle life. These valves conform to international standards and are for use with air and inert gas.

Specifications
Solenoid Enclosures: Red-Hat II -- Types 1, 2, 3, 3S, 4 and 4X Combination General Purpose and Watertight

Optional Enclosures:
Red-Hat II -- Types 3, 3S, 4, 4X, 6, 6P, 7 and 9 Combination Explosionproof and Watertight. To order, add prefix "EF" to catalog number.


Molded Epoxy coil per 3 x DIN 46244. To order, specify prefix "SC". (No 6 volt DC available.)

Media:
Air and inert Gas

Electrical:
Standard Voltages: 24, 120, 240, 480 volts, AC, 60 Hz (15-230 volts, AC, 50 Hz)
6, 12, 24, 120, 240 volts, DC

Coil: Continuous duty molded Class F. Class H also available.

Nominal Ambient Temperature Ranges: AC Construction: -4°F to 125°F.
DC Construction: -4°F to 104°F.


Valve Parts in Contact with Fluids:
Body -- Hard anodized aluminum or 316 s.s.
Seals and Discs -- NBR and PUR Core Tube -- 305 s.s.
Core and Plugnut -- 430F s.s.
Springs -- 302 s.s.
Shading Coil -- Copper (Aluminum body); Silver (316 s.s. body)
End Covers -- Glass Filled Polyamide (Aluminum body); 316 s.s. (316 s.s. body)
Spool -- Stainless steel
Internal Parts -- Zamak, Steal, Acetal

Approvals: UL listed General Purpose valves; CSA certified.

Installation: Mountable in any position. Ordering Information: Important: We must have catalog number, voltage and Hertz.


Pipe
Size
(ins.)
Orifice
Size
(ins.)
CV
Flow
Factor
Standard Solenoid Enclosure Red-Hat II -- Types 1, 2, 3, 3S, 4 and 4X Watt Rating/
Class of Coil
Insulation
Single Solenoid Dual Solenoid
Operating
Pressure
Differential
(psi)
Max Fluid
Temp
(°F)
Catalog Number Const.
Ref.
Operating
Pressure
Differential
(psi)
Max Fluid
Temp
(°F)
Catalog Number Const.
Ref.
Min Max
AC
Max
DC
AC DC Aluminum 316 s.s. Min Max
AC
Max
DC
AC DC Aluminum 316 s.s. AC DC
3 Way Valves
¼ ¼ 0.60 35 150 120 140 120 8551G478 8551G479 1 20 150 120 140 120 8551G480 8551G481 2 10.1/F 11.6/F
4 Way Valves
¼ ¼ 0.84 35 150 120 140 120 8551G487 8551G488 3 20 150 120 140 120 8551G489 8551G490 4 10.1/F 11.6/F
4 Way, 3 Position Dual Solenoid Valve -- Closed Center
¼ ¼ 0.84 -- -- -- -- -- -- -- -- 35 150 -- 140 120 8551G496 -- 4 10.1/F 11.6/F
 

 

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