BIFFI FCB Series, Руководство пользователя

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March 2022
Service Instructions
VCIOM-15313-EN Rev. 1
18
Section 4: Actuator Testing
Actuator Testing
4.1.8.1 Adjust the pressure regulator to the pressure rating that the customer
uses to operate the actuator during normal service.
4.1.8.2 Apply the above pressure to the actuator and allow the actuator to
stabilize.The actuator should stroke a full 90° travel with the stops
properly set.
4.1.9 Shell Pressure Test – Optional pressure test can be performed on the actuator by
applying pressure to both sides of the piston simultaneously for a period of two (2)
minutes. If any leakage occurs across a static seal, the unit must be disassembled
and the cause of leakage determined and corrected.
! WARNING
The actuators main pressure bearing parts will be tested in controlled conditions by
pressuring both sides of the piston to avoid damage and over-torquing of the actuator
components. If further future testing in the field is necessary, Biffi should be contacted
for guidance.
4.2 Return to Service
4.2.1 Install breather (30) into end cap (4-20).
4.2.2 For models with BREATHER -10 COLD TEMP, do the following:
4.2.2.1 Install breather (30-10), elbow (30-30) and hex nipple (30-20) into
end cap (4-20).
4.2.3 After the actuator is installed back on the valve all accessories should be hooked
up and tested for proper operation and then replaced, if found defective.
4.3 Pressure Requirement and Limitations for
FCBB-SR Actuators
Table 4. Pressure Requirement and Limitations
Actuator
Model
Nominal
Operating
Pressure
Maximum
Operating
Pressure
Actuator
Model
Nominal
Operating
Pressure
Maximum
Operating
Pressure
FCBB Psig Barg Psig Barg FCBB Psig Barg Psig Barg
315-SR40 40 2.76 155 10.69 520-SR40 40 2.76 110 7.59
315-SR60 60 4.14 152 10.48 520-SR60 60 4.14 116 8.00
315-SR80 80 5.52 150 10.34 520-SR80 80 5.52 120 8.27
315-SR100 100 6.89 164 11.31 520-SR100 100 6.89 132 9.10
415-SR40 40 2.76 100 6.89 525-SR40 40 2.76 146 10.07
415-SR60 60 4.14 112 7.72 525-SR60 60 4.14 151 10.41
415-SR80 80 5.52 117 8.07 525-SR80 80 5.52 159 10.96
415-SR100 100 6.89 114 7.86 525-SR100 100 6.89 163 11.24
420-SR40 40 2.76 157 10.83 725-SR40 40 2.76 102 7.03
420-SR60 60 4.14 156 10.76 725-SR60 60 4.14 115 7.95
420-SR80 80 5.52 161 11.10 725-SR80 80 5.52 124 8.55
420-SR100 100 6.89 166 11.45 725-SR100 100 6.89 124 8.55