ESY12XOLZ Valve Data - AAA Products International

AAA Products International Inc.
7114 Harry Hines Blvd.
Dallas, Texas 75235
214-357-3851

Data for ESY12XOLZ

The ESY12XOLZ is a 1-1/2" NPTF side ported, 3 position, spring centered, closed center spool, double solenoid operated valve with a twist locking solenoid override with externally pressurized solenoid valve and a dust excluder nut on the solenoid stem. The valve is controlled by a smaller 3/8" subplate style attached to the top of the larger valve. The spool is shifted by 50 to 150 psi external pilot air when the solenoid is energized. 50 to 150 psi must be maintained to the solenoid to keep the spool shifted while the coil is energized. The control spool is spring centered when both solenoids are de-energized. See additional information on solenoid valve operation. Coil is a 30mm wide explosion proof coil with 1/2"-14 NPT connection. Standard voltage is 120/60, indicate other voltages (i.e. 12VDC, 24VDC, 240/60 etc.).

Details

Pressure: 15 to 250 psi on the main body of the valve when solenoid is externally piloted.
Vacuum: The five main ports can be operated on industrial vacuum to 28" Hg, based on a 30" barometer.
Temperature: -20°F to 120°F ambient. Caution: If it is possible that the ambient temperature may fall below freezing, the medium must be moisture free to prevent internal damage or unpredictable behavior.
Mounting: The valve can be mounted in any orientation.
O-Rings: Buna-N in main valve, Viton in control valve.
Solenoid Seat: Viton.
Materials: 356-T6 aluminum body aluminum body, hard anodized aluminum spool, A380 aluminum end caps, Viton solenoid seat, composite gaskets, steel fasteners.
Flow: 1627 SCFM, 37.8 Cv
Repair Kits: ERKV-16 & ERKV-3.
3-Way or 5-Way: This valve is basically 4-way, it must be configured for external pilot (Option 'Z') for 5-way service by using ports 2 or 4 as an inlet, or 3-way service by plugging the unused port 2 or 4.
Fluid Media: Soft seal models are made for air, vacuum, and gases compatible with component materials. They should not be used with liquids.

"E-Series" Operator - Twist Style Locking Override

This operator is equipped with a locking manual twist style override and a 1/8" NPT external pilot port. For external pilot operation, the internal pilot pressure must be blocked and the plug must be removed and external pilot source must be provided (150 psi maximum). All operators have internally threaded exhaust stems. The thread fits 10-32 UNF or 5mm-0.8 fittings. Solenoid operator is equipped with a locking manual override on the side of the solenoid structure. To activate manual override, twist the yellow lever clockwise to engage override. For replacement operators order ESPKO which is a V-599-1 operator and an EMG3 gasket (individual operator components are not available)

Material: Brass, steel, stainless steel, Viton seat.
Molding Material: Thermoplastic.
Ambient Temperature: -20°C to +50°C.
Internal Diameter Orifice: 1.3mm

"E-Series" Coil - Option X - Explosion Proof

The explosion proof coils are a 1/2" NPT conduit connection with one green ground wire and two black wires. When connecting to an electrical source either black wire can be connected to hot (+) and the other connected to neutral (-). The green wire is the ground (earth). The coil is 36mm wide. On some valves this may interfere with mounting and a spacer may be used under the valve. These coils are rated explosion proof for Class I, Division 1, Groups A, B, C and D (gasoline vapors, etc.), Class II, Groups E, F, and G (coal, coke and grain dusts), Class III. See below for exact approvals. Other voltages not shown below are available. Coil can be rotated in 90° increments on operator stem when space is available.

Voltage	Holding	Resistance	Spare Coil
120 volts, 60 Hz	6.8 VA	530 ohms	V-593-1
12 volts D-C	4.5 Watts	31.6 ohms	V-593-2
24 volts D-C	4.6 Watts	121 ohms	V-593-3
240 volts, 60 Hz	6.8 VA	2345 ohms	V-593-4

Molding Material: Thermoplastic.
Conduit Material: on V-593-1 thru -3, stainless steel. On V-593-4, zinc plated.
Ambient Temperature: -20°C to +60°C.
Relative Duty Cycle: 100%.
Degree of Protection: IP65 with connector (IP67 possible with accessories).
Certifications: This coil carries both a FM and CSA approval rating; CSA CLASS 2258 02, process control equipment for hazardous locations; FM CLASS 3600, 3611, 3615, 3810, hazardous (classified) location electrical equipment. A copy of the certification is available here. The rating only applies to the coil and not the entire valve.
Voltage Tolerance: ± 10%.
Resistance Tolerance: ± 8% at 20°C.
Insulation Class: H

Commonly Asked Questions

Q: Can I use a piece of equipment approved for use in a Division 1 hazardous location in a Division 2 hazardous location?
A: Yes. If equipment has been approved for use in a Division 1 hazardous location, it can be used in a Division 2 hazardous location, providing it is in the same class and group.

Q: Can equipment approved for a Class I hazardous location be used in a Class II hazardous location?
A: No. Equipment used in Class I and Class II hazardous locations are made for different purposes. Equipment approved for Class I hazardous locations must contain an internal explosion, while Class II approved equipment must seal out dust. They are not interchangeable.

General - 1-1/2" & 2" Valve Operation

Normal assembly of all standard 1-1/2" & 2" valves is for internal pilot operation, in which the air pressure for shifting the large spool is internally tapped off the valve inlet. If the main spool is to handle pressures lower than 50 PSI or more than 150 PSI on solenoid models or from 50 to 250 psi on all other models, the valve should be factory ordered for "external pilot operation" by adding suffix "Z" after the regular model number. Or, the valve can easily be converted in the field to external piloting as described below. This pressure limitation applies to all 1-1/2" and 2" manual lever, solenoid, pilot or differential pilot valves.

Conversion to External Piloting: Remove the entire control valve from the main body and lay it aside. Install a 1/16"-27 NPT pipe plug in the treaded hole uncovered in the body mounting pad. Re-mount the control valve in the same orientation as before. Connect a pilot pressure air source (50 to 150 PSI on solenoid models and 50 to 250 psi on all other models) to the 1/4" NPTF external pilot port. This port is located on the side and near the top of the main body and stamped "EXT P", on the side opposite the MFC flow controls.

INTERNAL OPERATION
2 POSITION VALVES

EXTERNAL OPERATION
2 POSITION VALVES

INTERNAL OPERATION
3 POSITION VALVES

EXTERNAL OPERATION
3 POSITION VALVES

"E-Series" Nut - Dust Excluder

Sintered bronze dust excluder nut, part number V-567W reduces the noise and diffuses the solenoid exhaust. The nut comes with a V-613 lock washer to improve nut retention. With this option the 10-32/5mm-0.8 tapped exhaust is inaccessible. To order standard solenoid valves with this nut, use option 'L' (e.g. ESY4L).

General - Installation & Maintenance

Valves should be installed with reasonable accessibility for service. Exercise care in keeping tubing lengths to a minimum. Plumbing should be free of contamination. Pipe joint compound should be used sparingly applied only to the thread, never the valve body. Over tightening of pipe threads can fracture the joint causing leaks or failure. Protect the valve from exposure to extreme temperatures, dirt and moisture to maximize life.
Bulletin A-113: Operating & Maintenance Instructions.
Installation: Valve Fitting Installation.

WARNING:These products can expose you to chemicals which is(are) known to the State of California to cause cancer or reproductive harm. For more information, go to www.P65Warnings.ca.gov. Contact us for specific chemicals or materials used in a product.

General - Lubrication, Standard

All valves are pre-lubricated at the factory using Magnalube-G Teflon based all purpose grease. Valves are suitable for, and perform best in a non-lube service. For long life, use an air line filter/lubricator installed no further than 10-ft. from the valve. The filter should be rated 25 pm or finer. Use a good grade of petroleum base lubricating oil no heavier than SAE 10W. DO NOT OVER-LUBRICATE. This could cause the spool to stick. CAUTION! Do not use questionable fluids in air line lubricators. Do not use petroleum oil with detergent additives. Detergents, volatile or aromatic fluids may swell rubber seals in valves and cylinders. Never use cooking or vegetable oil as a lubricant. When cleaning AAA valves after extended service, lubricate the valve spool with AAA high film strength grease, or, use O-ring grease which is usually available from supply houses which sell O-rings. Magnalube-G is included in all valve repair kits for proper valve maintenance. If an additional amount of Magnalube-G grease is required, a 0.75 ounce tube is available under part number VGK-3. Never use any kind of oil, cup grease, or automobile chassis lubricant.

The shelf life of Magnalube-G regularly lasts for 10+ year intervals in closed packaging due to the extremely long operating life of the Elastomer-PTFE gelling agent and premium parafiinic mineral base oil. If the valve is stored for over 2 years, then a small reapplication of grease is suggested.

Magnalube-G Technical Document
Magnalube-G MSDS Document

An alternative grease for low temperature application, refer to Dow-55 grease.

General - O-Ring Information

Unless otherwise specified, all 1/4" and 3/8" soft seal valves come standard with Viton O-rings and all 1/2", 3/4", 1", 1-1/2" and 2" soft seal valves come standard with Buna-N O-rings. If a different material is required, use the dash numbers following the basic valve numbering code. For example, model RY3G-2 will have Silicone O-rings installed for a low temperature application. On valves larger than 1" consult factory on availability of O-ring materials. Additional O-ring material information.

Dash No.	O-ring Description	Temperature Rating
-2	Silicone	-80°F to 400°F
-3	Viton for most aromatic gases	-20°F to 400°F, 600°F for short time
-7	Urethane, 70 Durometer	-65°F to 200°F
-9	Buna-N	-40°F to 250°F

We are constantly researching O-ring materials to evaluate performance and durability in the AAA valve product line. Above is a compilation of the most commonly requested O-ring materials and the associated dash number. If you have a particular application that requires an O-ring material that is not listed, please contact us. Since we utilize standard O-ring dimensions in our valves, we can respond to the most obscure O-ring material request.