Apollo Valves 61YLF-20-T1 Series Manual de instalação, operação e manutenção - Página 3

Procurar online ou descarregar pdf Manual de instalação, operação e manutenção para Unidade de controlo Apollo Valves 61YLF-20-T1 Series. Apollo Valves 61YLF-20-T1 Series 4 páginas. Bronze swing check valve

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APOLLO

BRONZE SWING CHECK VALVE IOM GUIDE

INSTALLATION

Inspection

Threads of mating pipe must be clean and machined to appropriate ANSI/ASME specifications.

Ends of mating copper tubing or pipe must be square and free of burrs. Use emery cloth to clean and

remove grease and/or oxidation before soldering. Inspect sealing surfaces of valve for cleanliness prior to

installing.

Mounting

Swing check valves can be mounted in either vertical or horizontal position with upward flow or in any

intermediate position. Flow must be by direction of arrow in body.

It is not recommended that swing check valve be mounted in close proximity to reciprocating pumps or

compressors due constant pressure fluctuations which shortens the life of the valve.

NPT connection

It is recommended that the valve is mounted in the closed position. Gently thread valve to mating pipe

by hand until resistance is felt. Using a wrench tighten the valve using the hex flats at the joint being

tightened.

Do not tighten through the valve body using hex flats on opposite end of joint being

tightened.

Solder connection

It is recommended that the valve be in the open position. Care must be taken to apply the proper

amount of solder so that it does not flow into valve seat area. During soldering, the mid-portion of the

valve body should not exceed 300°F. This can be monitored using Tempilstik® or an infra-red

temperature sensor. Depending on the fuel selected and the orientation of the installation it may be

necessary to wrap the valve body with wet rags or employ other heat absorbing techniques. The flame

must be directed away from the valve body, concentrated on the solder cup. The cup should be heated

evenly. Once one of the joints is complete, the valve should be allowed to cool until "cool to the touch"

before beginning the second joint.

Fuel

Propane

Propylene

MAPP Gas

Acetylene

WARNING: Excessive heat input will damage the body seal resulting in leaks at the valve body joint.

Press connection

Valve can be in either closed or open position. Piping must be properly supported so that valve fits

squarely before pressing. Do not solder any joint within 12" of press connection.

Compatible piping: Copper water tube per ASTM B88, Types K, L, & M.

(Not for use with steam service)

Push connection

Valve can be in either closed or open position.

Compatible piping: Copper water tube per ASTM B88, Types K, L, & M, both hard drawn

(Not for use with steam service)

OPERATION

Swing check valve functions by allowing flow forces to move the disc from the closed position to the fully

open position in a sweeping arc motion against a hinge-stop inside the valve body. Due to the weight and

center-of-gravity location of the disc and swing arm assembly, the valve will return to the closed position

should flow become interrupted or reversed.

Swing check valve produces the lowest pressure drop when compared with other check valves of the

same size. They feature a simple design that is easy to maintain. Swing check valves with metal seated

Swing Check 61Y ES 1498 a.pdf.doc

Flame temp w/Oxygen

5122°F (2828°C)

5245°F (2896°C)

5389°F (2976°C)

5720°F (3160°C)

1418 S. Pearl Street Pageland SC USA 29728

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