38 Overall dimensions and technical information are provided solely for informative purposes and may be modified without notice PROCESS AUTOMATION TECHNOLOGY Process automation technology Catalogue Air service units Series 1700 Steel line Pressure range A 0 - 2 bar B 0 - 4 bar C 0 - 8 bar (0 - 7 bar for size 4) D 0 - 12 bar (0 - 10 bar for size 4) S E S 17 B B N 3B Version S Rough finishing F Clean profile M Modular assembly version (only for size 2 and size 3) Type Standard N Without relieving Size and connections 2A Size 2 - 1/4” NPT 2B Size 2 - 3/8” NPT 2C Size 2 - G1/4” 3A Size 3 - 1/4” NPT 3B Size 3 - 1/2” NPT 3D Size 3 - G1/2” 4A Size 4 - 3/4” NPT 4B Size 4 - 1” NPT 4D Size 4 - G1” Example: SS173BEBBNL Size 3 filter regulator, rough finishing, 1/2” NPT connection, filter pore size 20 μm - 316 stainless steel, pressure range 0 - 4 bar, without relieving, low temperature version. Order codes Filter pore size A 5 μm - 316 stainless steel B 20 μm - 316 stainless steel C 50 μm - 316 stainless steel D 5 μm - HDPE E 20 μm - HDPE F 50 μm - HDPE Options Standard L Low temperature Z Low temperature (-60 °C) H High temperature S Automatic drain SR Reduced orifice automatic drain version EF EPDM-FDA L Design Size 2 - Size 3 - Size 4 Manual drain Size 2 - Size 3 - Size 4 Automatic drain
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