ARG20K ARG40K Circuit diagram Circuit diagram MPa KCOLto HSUP MPa KCOLto HSUP MPa KCOLto HSUP MPa KCOLto HSUP Symbol IN OUT IN OUT IN OUT IN OUT 1 2 1 1 2 1 3 1 5 14 2 4 12 2 1 2 12 10 3 1 L 1 2 Regulator with Built-in Pressure Gauge with Backflow Function Series ARG20K/30K/40K How to Order ARG 20 K 01 G1 With backflow function Symbol X406 X2101�ｭ Specifications Setting and pressure gauge full span 0.4 MPa Special pressure gauge mounting angle (45°, 135°, 225°, 315°) Made to Order (Refer to pages 571 and 572 for details.) Body size Symbol 20 30 40 Port size 1/8 3/8 1/2 Thread type Symbol Nil N F Type Rc NPT G Port size Symbol 01 02 03 04 Port size 1/8 1/4 3/8 1/2 20 �� �� . . 30 . �� �� . 40 . �� �� �� Body size Option (1) Symbol Nil B Description . With bracket (With set nuts) . When more than one specification is required, indicate in ascending alphanumeric order. Semi-standard Symbol Nil 1 N Z Description 0.02 to 0.2 MPa setting Non-relieving type Name plate and pressure gauge in imperial units (psi) Note 2) Adjusting spring and pressure gauge (full-span 0.3 MPa) are different from those for the standard specification. All products can be set at 0.2 MPa or more. Note 3) For thread type NPT. This product is for overseas use only according to the new Measurement Law. (The SI unit type is provided for use in Japan.) (2) (3) Option (2) Symbol Nil H Description . With set nuts Mounting Angle of Pressure Gauge Symbol Mounting angle Mounting angle view 0° 90° 180° 270° G1 G2 G3 G4 . Mounting angles other than 45°, 135°, 225° and 315° are available through the Made to Order (page 572). . Possible to change to the optional mounting angles. For details, refer to page 584, “Procedure for replacing or changing the mounting angle of a pressure gauge”. Option/Semi-standard Combinations Option/ Semi-standard specifications Combination With bracket With set nut 0.02 to 0.2 MPa setting Non-relieving type Name plate and pressure gauge in imperial units (psi) Option Semi-standard Applicable Symbol regulator B H -1 -N -Z B H 1 N Z ARG20 to 40 : Combination available : Combination not available : Available only with NPT thread Semi-standard Option With a built-in mechanism which enables reliable discharge of air pressure from outlet to inlet Example 1) When the pressure in the rear and the front of the cylinder differs: Application examples of a regulator with a backflow function Example 2) When the air supply is cut off and releasing the inlet pressure to the atmosphere, the residual pressure release of the outlet side can be ensured for a safety purpose. . 566