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SPRING LOADED BACK PRESSURE VALVE
Operating conditions and specifications
August 2019
2.2
Specifications for the control valve
2.2.1
Interface requirements
EXCEEDING REQUIREMENTS HAZARD
Control valve requirements are defined to ensure safe equipment operation. Do not
exceed published specifications.
Failure to comply may result in death, serious injury and/or damage to the equipment.
Table 2-3: Interface requirements
FLANGE SIZE HAZARD
Customers must choose the appropriate size material of the flange for their piping
requirements.
Choosing an incorrect flange may cause a pressure leak, resulting in death or serious
injury.
2.2.2
Requirements and limitations for installation
NOTICE
Comply with local government regulations and company requirements.
See
NOTICE
Flush lines to remove welding bead, pipe scale, etc.
NOTICE
Install the valve in a horizontal line with the cylinder head at the top.
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WARNING
Requirements
Hydraulic lines
Flange type
WARNING
Figure 2-1
for flow direction.
DAN-20064957
Description
External hook up:
•
ANSI class 150 and 300:
—
NPS 2-4: Carbon steel/Stainless steel 10
mm (0.375")
•
ANSI class 600:
—
NPS 2-4: Stainless steel 13 mm (0.5")
The mechanical connections for a Series 700
control valve NPS 2 to 4 are standard class 150,
300 and 600 ANSI R.F. flanges, which are
available only in carbon steel. For maximum
working pressures at intermediate
temperatures refer to ANSI B16.5.
707 Spring Loaded Back Pressure Valve
User manual
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