33 Overall dimensions and technical information are provided solely for informative purposes and may be modified without notice PROCESS AUTOMATION TECHNOLOGY Air service units Series 1700 Steel line Process automation technology Catalogue Regulators Pressure regulator diaphragm with over-pressure drain (Relieving) Body, adjustment mechanism, back plate and caseback internal components in AISI 316L stainless steel AISI 316 stainless steel adjustment springs Fixing screws, adjustment screw and locking nut in inox A4 (AISI 316) Clean profile versions available Low hysteresis rolling diaphragm Balanced system ATEX certification (II 2G or II 2D), SIL, EAC Note The pressure must be always regulating while increasing. For a more precise regulation and higher sensibility, the use of a regulator with a pressure range as close as possible to the regulated pressure is recommended. 1 2 Technical characteristics Size Size 2 Size 3 Size 4 Type Rough finishing Clean profile (Back plate and adjustment mechanism) IN / OUT connections 1/4” NPT 3/8” NPT G1/4” 1/4” NPT 1/2” NPT G1/2” 3/4” NPT 1” NPT G1” Assembly configuration Stand alone Assembly position Indifferent Pressure range (bar) 0-2 0-4 0-8 0-12 Regulation Manual Pressure measurement 1/8” NPT pressure gauge connection port Operational characteristics Size Size 2 Size 3 Size 4 Maximum working pressure (bar) 20 Minimum working pressure (bar) 0,5 Working temperature (C°) -30 ... +80 (standard version) -50 ... +80 (low temperature L version) -60 ... +80 (low temperature version -60 °C Z) -5 ... +150 (lhigh temperature H version) -40 ... +100 (EPDM-FDA version) Weights Size Size 2 Size 3 Size 4 Weight (g) 1283 2270 5400
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