10 Valve QuickCheck
Apply appropriate personal protective equip ment
when working on the control valve to prevent hazards
arising from the operation. Protect yourself against
freezing, burns and cuts by wearing appropriate
protective cloth ing, gloves and eye protection.
Prior to valve operation, we require, that you check the following conditions to reduce the risk of malfunction and safety
related incidents.
No.
Important information
Possible malfunction or safetyrelated incident
1 Avoid critical operating conditions where excessive noise
or vibration levels might occur.
Impermissible continuous operation of a control valves
under critical conditions can damage the valve.
2 Avoid frequent system start-ups and shutdowns.
Critical operating conditions, which can damage the
control valve, may be encountered during system start-up
or shut down.
3 Instrument air must conform to ISA 7.0.01-1996 (with a dew
point at least 18°F (10°C) below ambient temperature, par-
ticle size below 1 µm and oil content not to exceed 1 ppm)
Contaminated instrument air can damage the accessories
and control valve or cause them to fail.
4
Do not touch the body and bonnet ! The tempera
ture of the operating medium is transferred to the
surface of the control valve.
Excessive hot surface temperatures can put you at risk for
burns.
Frigid surface temperatures can put you at risk for
freezing.
5
Critical operating conditions can cause exces
sive or hazardous levels of vibration or noise.
Impermissible levels of vibration can cause hearing
loss, vascular and nerve damage and damage to joints
and bones. Use hearing protection when noise levels
exceed 80 dB(A).
6
Incorrect maintenance can result in the emission
of hot, cryogenic, and / or toxic operating media.
Incorrect maintenance can put you at risk for heat
related burns, freezing, acid burns or poisoning.
Table 3: Basic safety messages for operating the valve
Do not overtighten packing.
Sudden exposure of the control valve to full working
pressure and temperature may cause stress cracks.
7
MaxFlo 4 Control Valve FCD VLENIM0064-02-AQ – 09/16
flowserve.com
