AAA Products International Inc.
7114 Harry Hines Blvd.
Dallas, Texas 75235
214-357-3851
7114 Harry Hines Blvd.
Dallas, Texas 75235
214-357-3851
Data for 798VY
The 798VY is a 1/4" NPTF side ported, 3 position, closed center spool, spring centered, lever/hand operated valve. The rear end cap is solid and internally vented through the exhaust port 5. The body O-Rings are Buna-N and use DOW-55 lubricant. The internal spool is shifted by moving the handle, 7 lbs is required to shift the spool against the spring. The internal spool is spring returned to center when the lever is released. Greater port pressures may require greater shifting force.
Details
Pressure: 15 to 250 psi on the main body of the valve.
Vacuum: The five main ports can be operated on industrial vacuum to 28" Hg, based on a 30" barometer.
Temperature: -20°F to 250°F. 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.
Materials: Black anodized 6061-T6 aluminum body, hard anodized aluminum spool, A380 aluminum end caps, steel lever, composite gaskets, steel fasteners.
Flow: 73.9 SCFM, 1.6 Cv
Repair Kit: ERKV-3-9W.
3-Way or 5-Way: While this valve is basically 4-way, it can be used 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.
Weight: 1.6 lbs ± 5%.
Vacuum: The five main ports can be operated on industrial vacuum to 28" Hg, based on a 30" barometer.
Temperature: -20°F to 250°F. 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.
Materials: Black anodized 6061-T6 aluminum body, hard anodized aluminum spool, A380 aluminum end caps, steel lever, composite gaskets, steel fasteners.
Flow: 73.9 SCFM, 1.6 Cv
Repair Kit: ERKV-3-9W.
3-Way or 5-Way: While this valve is basically 4-way, it can be used 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.
Weight: 1.6 lbs ± 5%.
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.
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, DOW-55
Valves that are required to operate at temperatures lower than 32°F, we recommend using DOW 55 grease. This grease is not as sluggish as Magnalube-G is at these low temperatures. DOW 55 grease is not required and Magnalube-G has worked well for low temperatures. It is only an anecdotal recommendation. 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. DOW 55 is included in all valve repair kits that specify DOW 55 for proper valve maintenance. Never use any kind of oil, cup grease, or automobile chassis lubricant.
To specify the use of Dow-55 grease, use the suffix "W" to the end of the valve part number. This should be the last letter in the part number structure.
If the valve is stored for over 2 years, then a small reapplication of grease is suggested.
Molykote-55 Technical Document
Molykote-55 MSDS Document
To specify the use of Dow-55 grease, use the suffix "W" to the end of the valve part number. This should be the last letter in the part number structure.
If the valve is stored for over 2 years, then a small reapplication of grease is suggested.
Molykote-55 Technical Document
Molykote-55 MSDS Document
The standard grease for most applications, refer to Magnalube-G grease.
3-WAY N.O. APPLICATION
3-WAY N.C. APPLICATION
4-WAY APPLICATION
5-WAY APPLICATIONS