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Datasheet generated 2026-10-07
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Danfoss FJV Self-Acting Temperature Limiter DN 25 PN 16

Danfoss · HVAC & Refrigeration · Water Regulating Valves · Denmark · danfoss.com
Part Number
003N8219  ·  HS 8481.80
Danfoss FJV Self-Acting Temperature Limiter DN 25 PN 16

Danfoss FJV self-acting temperature limiter, OEM P/N 003N8219. Direct-acting proportional temperature controller used to limit the temperature of circulation water in district heating and cooling circuits; the bellows element senses the medium temperature and throttles the valve. DN 25, PN 16, internal thread Rp 1 in (ISO 7/1). Kvs 5.5 m³/h; temperature setting range 50 – 90 °C, linear characteristic. Brass body (CuZn40Pb2, W.-Nr. 2.0402), NBR valve cone, Cr Ni steel valve seat (W.-Nr. 1.4301). Max differential pressure 10 bar; media temperature 2 – 130 °C. Approved to ETA VA 1.54/18952. Confirm the setting range and code against the datasheet before ordering.

Technical Specifications

BrandDanfoss
Part number003N8219
ModelFJV self-acting temperature limiter
CategoryHVAC & Refrigeration — Water Regulating Valves
Versiondirect-acting proportional temperature limiter, internal thread
Functiontemperature limiter; senses medium temperature via bellows element and throttles the valve to hold the set limit
Nominal sizeDN 25
Pressure classPN 16
Connectioninternal thread Rp 1 in (ISO 7/1)
Kvs5.5 m³/h
Temperature setting range50 – 90 °C
Flow characteristiclinear
Max differential pressure10 bar
Media temperature range2 °C to 130 °C
Ambient temperature range0 °C to 70 °C
Cavitation factor0.4
Body materialbrass CuZn40Pb2 (W.-Nr. 2.0402)
Valve cone materialNBR rubber
Valve seat materialCr Ni steel (W.-Nr. 1.4301)
Applicationdistrict heating / cooling circulation water; glycolic water up to 30%
PackingSingle pack
EAN5702421100882
ApprovalsETA VA 1.54/18952, EAC, PED, EU RoHS, China RoHS

Properties

MaterialBody brass CuZn40Pb2 (W.-Nr. 2.0402); valve cone NBR rubber; valve seat Cr Ni steel (W.-Nr. 1.4301)
Pressure ratingPN 16; max differential pressure 10 bar
Temperature range2 °C to 130 °C (media)
Standard sizeDN 25
Thread standardISO 7/1 (Rp)
MOQ1

Compatibility

Fit in the water line with the flow arrow in the direction of flow. Self-acting (no external power). Set the temperature limit on the adjustment spindle. Confirm code and setting range before ordering.

Standards

Approvals

Attached Documents