Barksdale Series 5620 - Manual (Page 8)

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Barksdale, Inc. 3211 Fruitland Avenue, Los Angeles CA 90058 (800)835-1060 www.barksdale.com Bulletin No. 272350-A, 07-05-13
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5.0 INSTALLATION
Always wear protective gloves, clothing, and eyewear when performing any installation operations
to avoid personal injury. Personal injury or equipment damage caused by sudden release of pressure
may result if the valve assembly is installed where service conditions could exceed the limits given
specification or on the appropriate nameplates. To avoid such injury or damage, provide a relief valve
for over
‐pressure protection as required by government or accepted industry codes and good
engineering practices. Check with your process or safety engineer for any additional measures that
must be taken to protect against process media.
5.1 Recommended tools and supplies are: Adjustable wrench, Strap wrench, Thread lubricant.
5.2 Before installing the valve, inspect the valve and associated equipment for any damage and any
foreign material.
5.3 Make sure ports are clean from debris that may have accumulated during storage or transportation.
5.4 Install valve using optional panel mounting stud, 4 places.
5.5 Pipe the valve into your system using ports PRESS, CYL 1, CYL 2 and RET. Use accepted piping
practice when installing the valve in line.
Note: For center of gravity of valve, please refer to Sales drawing. Center of gravity location can shift
slightly due to location of handle and fluid inside unit.
6.0 OPERATION
6.1 The Heavy duty valve is a 4-way, 3 position valve and is available with 3 different configurations as
shown figures 3, 4 and 5.
6.1.1 Closed center (selector) option “C”
6.1.2 Open center (tandem center) option “O”
6.1.3 Closed center – Manipulator (float center) option “Q”
6.2 Confirm the working pressure is lower or meets the pressure shown on the nameplate.
(See Figure 6)
Caution: Pressure on the return port must not exceed 250 psi (17.2 bars) for satisfactory operation.
Figure 3