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Honeywell Solenoid valves for hot water, steam, up to 180 degree LGK-series Flange connection L25G31FK

Fema piston-type solenoid valves of the LG series are particularly suitable for use as stop and safety check valves in heating installations

up to 120°C or 180°C. The coupled (automatically servo-controlled) mode of operation does not require a minimum differential pressure; the units open and close without difficulty even without pressure or with low differential pressures

DN size mm: 25

Kvs value: 10

Static pressure: PN40

Working range bar: 0…16

Connections: flange

Technical data

Type:2/2-way

Operating mode: normally closed

Type of construction: Piston-type solenoid valve, coupled, no minimum differential pressure required TÜV-tested to DIN 32730

Type test approval mark (DIN reg. no.) see Product Summary

Materials:Casing: Bronze Rg 5 to DIN 1705

Internal parts: Brass (CuZn40Pb) and corrosion-resistant steel

Sealing materials:Piston: Teflon (PTFE).

Nozzle: Cone made of stainless steel.

Static seal: EPDM

Mounting position: Standard version: Solenoid system preferably upright. Horizontal,mounting position possible for DN 15 to DN 32. For DN 40 and 50 a horizontal mounting position is not permitted. The solenoid system should not hang downwards. Outdoor installations fr = suitable for outdoor use

Ambient temperature: 4°C to +60°C Temperature of medium,120°C/180°C maximum

Working pressure: See Product Summary

Flanges To DIN 2501 Part 1

PN 40 for DN 15–32

PN 25 for DN 40/50

Recommended weld-on flange

PN 40 to DIN 2635

Maintenance

The valve should be operated 5-10 times per month to prevent

the piston from sticking. No further maintenance is required.

Temperature of medium 120°C maximum

15 4.0 0–25 G 1/2“ L15G31M L15G31F 1F02204

20 4.8 0–25 G 3/4“ L20G31M L20G31F 1F02204

25 10 0–20 G 1“ L25G31M L25G31F 1F02304

32 13 0–20 G 1 1/4“ L32G31M L32G31F 1F02304

40 34 0–16 L40G31F 1F02404

50 40 0–16 L50G31F 1F02404

Temperature of medium 180°C maximum

15 4.0 0–20 G 1/2“ L15G31MK L15G31FK 1F01904

20 4.8 0–20 G 3/4“ L20G31MK L20G31FK 1F01904

25 10 0–16 G 1“ L25G31MK L25G31FK 1F02004

32 13 0–16 G 1 1/4“ L32G31MK L32G31FK 1F02004

40 34 0–12 L40G31FK 1F02104

50 40 0–12 L50G31FK 1F02104

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