Danfoss OFV-SS 25 overflow / pressure regulating valve, 25 mm (1 in) butt weld ASME B 36.19M Sch 40, stainless steel, 52 bar, 2-8 bar set range

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.

Type

Danfoss OFV-SS 25 overflow / pressure regulating valve

Code number

148G3843

Series

OFV-SS (stainless steel)

Function

overflow valve + check valve + stop valve (three functions in one)

Direction

Angle-way

Connection type

Butt weld

Connection standard

ASME B 36.19M Schedule 40

Nominal size

25 mm (1 in)

Body material

Stainless steel

Spindle/seat

Stainless steel; cone seal Chloroprene (Neoprene) / PTFE O-rings

Maximum working pressure

52 bar (754 psig)

Media temperature range

-60 to 150 C (-76 to 302 F)

Set (opening) differential pressure

2-8 bar (29-116 psi); 2-6.5 bar without distance piece, 3.5-8 bar with distance piece

Kv value

0 - 1.5 m3/h

Weight

net 2.156 kg, gross 2.368 kg

PED

Article 4, paragraph 3 (sound engineering practice)

Approvals

EAC

EAN

5702428963176

Net weight

2.156 Kilogram

Product group

Press. and temp. regul. valves

Approval

EAC

China RoHS compliance

Yes

Colour Paint

Gray

Connection size [in]

1 in

Connection size [mm]

25 mm

Cv value [gal/min] [max]

1.744 gal/min

Cv value [gal/min] [min]

0 gal/min

Equipment

Cap

EU RoHS compliance

Yes

Fluid Group

1

Inlet connection size [mm]

25 mm

Kv value [m³/h] [max]

1.5 m³/h

Kv value [m³/h] [min]

0 m³/h

Max. Working Pressure [bar]

52 bar

Max. Working Pressure [psig]

754 psig

PED category

Art. 4, par. 3

Pressure range [bar] Pe [max]

8 bar

Pressure range [bar] Pe [min]

2 bar

Pressure range [psig] Pe [max]

116 psig

Pressure range [psig] Pe [min]

2 psig

REACH Candidate List substances

No

Refrigerants

R134a

Temperature range [°C] [max]

150 °C

Temperature range [°C] [min]

-60 °C

Temperature range [°F] [max]

302 °F

Temperature range [°F] [min]

-76 °F

Standard

ASME B 36.19M Schedule 40

Size / Series

25 mm

Material

Stainless steel

Pressure Rating

52 bar

Temperature Range

-60 to 150 C

HS Code

8481.10