Installation – Flowserve Valtek Mark 10 Survivor Control Valves User Manual
Page 7
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Valtek Mark 10 Survivor Control Valves FCD VLENIM0036-05 – 07/09
flowserve.com
2
Installation
DANGER:
b
Before installation check the order number, serial number, and/or the tag number to
ensure that the valve and actuator are correct for the intended application.
CAUTION:
a
Do not insulate extensions that are provided for hot or cold services.
CAUTION:
a
On valves equipped with air filters, the air filter must point down to perform properly.
NOTE: In some rare cases, the air supply must be limited to less than 150 psi (10.3 bar). This is
indicated on a sticker found near the upper air port on the actuator cylinder. An air regulator should
be installed to ensure the supply pressure does not exceed the line pressure indicated on the sticker.
2.1.
Pipelines must be correctly aligned to ensure that the valve is not fitted under tension.
2.2.
Before installing the valve, clean the line of dirt, welding chips, scale, or other foreign material.
2.3.
Check the flow direction to be sure the valve is installed correctly. Flow for the Survivor is
always over the plug for both fail-closed and fail-open valves. Flow direction is indicated by
an arrow on the bonnet flange.
2.4.
Be sure to provide proper overhead clearance for the actuator to allow for disassembly of
the plug from the valve body. Refer to the appropriate actuator User Instructions for proper
clearances. Actuator User Instructions are available at www.flowserve.com.
2.5.
Prior to placing valve in the line, check the plug/seat ring adjustment, per the following
instructions.
WARNING:
c
Keep hands, hair, clothing, etc. away from all moving parts when operating the valve.
Failure to do so can cause serious injury.
2.5.1.
Valves with metal plug and seat
2.5.1.1.
Insert the seat into the bottom of the valve. Stroke the valve by applying air to the
top of the actuator. Check for a
1
/
16
-inch gap between the seat and body. If the gap
is too small or large, loosen the stem clamp bolt and screw the plug in or out of
the actuator stem. Repeat this process as needed to obtain a
1
/
16
-inch gap. Then
retighten the stem clamp.