Danfoss OFV-SS 25 angle-way overflow / pressure regulating valve for industrial refrigeration, code 148G3843. Stainless steel body with butt-weld connections to ASME B 36.19M Schedule 40, nominal size 25 mm (1 in). The OFV combines three functions in one valve: an overflow valve, a check valve and a stop valve. Opening (set) differential pressure is adjustable 2-8 bar (29-116 psi) by turning the spindle: 2-6.5 bar without the distance piece, 3.5-8 bar with the supplied distance piece fitted under the spring. The valve is designed to prevent fluttering at low velocity and/or low density, so it can be applied across wide capacity demand swings from full load to part load. It has internal backseating, allowing the spindle seal to be replaced while the valve is still under pressure, and can be closed manually during plant service. Maximum working pressure 52 bar (754 psig); media temperature range -60 to 150 C. Flow coefficient Kv 0 - 1.5 m3/h. For R134a, R22, R404A, R407C, R407F, R410A, R507A, R717 (ammonia), R744 (CO2) and other HCFC/HFC refrigerants. PED Article 4, paragraph 3 (sound engineering practice). EAC certified.