PIETRO FIORENTINI REVAL 182, Инструкция по эксплуатации и обслуживанию

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REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR | DESCRIPTION AND OPERATION | REV. 00
EN
4.4 - TECHNICAL FEATURES/PERFORMANCE
The equipment REVAL 182 is a regulator for medium and low pressure. The regulation system is balanced and guarantees
a stable outlet pressure even when the inlet pressure varies.
The main specifications for this regulator are:
Technical features
Maximum allowable pressure Up to 25 bar
Ambient temperature range -20 °C - +60 °C
Inlet gas temperature range -20 °C + 60 °C
Inlet pressure range (bpu) 0.2 - 25 bar
Possible regulation range (Wd) 0.007 - 12 bar (depending on the pilot installed)
Minimum differential pressure 0.1 bar
Accuracy class (AC) up to 2.5 (depending on operating conditions)
Shut-off pressure class (SG) up to 5 (depending on operating conditions)
Tubing connections
Class 150 RF or RTJ according to ASME B16.5 and PN16, 25
and 40 according to ISO 7005
Tab. 4.16.
Cg, Kg and K1 coefficients
Nominal diameter [mm] 25 50 65 80 100 150 200 250
Size [inches] 1” 2” 2” 1/2 3” 4” 6” 8” 10”
Coefficient Cg 575 2220 3320 4937 8000 16607 25933 36525
Kg coefficient 605 2335 4197 5194 8416 17471 27282 38425
Coefficient K1 106.78 106.78 106.78 106.78 106.78 106.78 106.78 106.78
Tab. 4.17.
The equipment REVAL 182 and the PM/182 monitor are equipped with pilots:
Pilot type Calibration range (bar) AG
201/A
0.007 - 0.1 20
0.1 - 0.58 10
204/A
0.3 - 0.58 20
0.58 - 12 10
Tab. 4.18.