Danfoss AFP 2 PN 40 self-acting differential-pressure controlling actuator — setting 0.1–0.35 bar, 640 cm² diaphragm, valve DN 65–250 (003G5621) — Datasheet

Danfoss AFP 2 PN 40 — a self-acting differential-pressure controller. It keeps the differential pressure across the controlled section constant by modulating the matching globe valve body via its rolling-diaphragm actuator, using the pressure signal fed to the actuator chambers. The actuator carries the diaphragm and setting spring only; it combines with a Danfoss VFG 2 / VFGS 2 / VFU 2 globe valve body (ordered separately) to form a complete self-acting controller for district heating and district cooling circuits. Actuator diaphragm area 640 cm²; setting 0.1–0.35 bar; suits valve bodies DN 65–250. Media temperature 2 °C to 150 °C; maximum operating pressure 40 bar. Actuator housing Steel, mat. 1.0345, zinc plated; diaphragm EPDM (Rolling, fibre enforced). Medium: district heating/cooling circulation water (glycolic water up to 30%). OEM designation "AFP 2, PN 40, 0.1 bar - 0.35 bar, 640 cm²". OEM P/N 003G5621. Technical data quoted verbatim from store.danfoss.com (code 003G5621). 1.0345, zinc plated; diaphragm EPDM (Rolling, fibre enforced); Standard size: AFP 2; Pressure rating: PN 40; Temperature range: 2 °C to 150 °C; HS code: 8481.90. Used in commercial refrigeration, provision-room cooling and reefer plant rooms across HFC, HFO and CO2 (R744) refrigerants. No.

AFP 2 is the self-acting actuator of the Danfoss AF range; it combines with a Danfoss VFG 2 / VFGS 2 / VFU 2 globe valve body to build a complete controller. Select by pressure class (PN 40), required setting range (0.1–0.35 bar), actuator size (640 cm²) and the valve-body size range (DN 65–250). AFP(B) is the alternative-connection actuator variant of the same function; for pressure reduction use AFD; for pressure relief use AFA; for differential-pressure relief use AFPA. Confirm actuator size, setting range and matching valve body against the AF-range data sheet before ordering.

Code number	003G5621
Type	AFP 2
Product group	Actuators - Pressure Flow
Gross weight	53.5 Kilogram
Net weight	45.34 Kilogram
Volume	181.384 Liter
Actuator diaphragm material	EPDM (Rolling, fibre enforced)
Actuator size [cm²]	640 cm²
Body material	Steel, mat. No. 1.0345, zinc plated
China RoHS compliance	Yes with exemptions
China RoHS exemption clause	7.3
Diameter [mm] [Max]	250 mm
Diameter [mm] [Min]	65 mm
Differential pressure setting [bar] [Max]	0.35 bar
Differential pressure setting [bar] [Min]	0.1 bar
EU RoHS compliance	Yes with exemptions
EU RoHS exemption clause	6(c)
Flow control	No
Flow limitation	No
Function	Diff. press. controller
Media pH [Max]	10
Media pH [Min]	7
Media temperature [°C] [Max]	150 °C
Media temperature [°C] [Min]	2 °C
Medium alternative	Glycolic water up to 30%
Mounting version	Free
Operating pressure [bar] [Max]	40 bar
Permissible media	District heating/cooling circulation water
Pressure class	PN 40
Pressure controller	Differential pressure controller
Pressure nominal [bar]	40 bar
REACH Candidate List substances	Lead (CAS no. 7439-92-1)
Setting Type	Adjustable
EAN	5715162388341
HS code	8481.90
Nominal diameter	DN65

Danfoss AFP 2 PN 40 self-acting differential-pressure controlling actuator — setting 0.1–0.35 bar, 640 cm² diaphragm, valve DN 65–250 (003G5621)

Technical Specifications

Properties

Compatibility

Attached Documents

Material	Actuator housing Steel, mat. No. 1.0345, zinc plated; diaphragm EPDM (Rolling, fibre enforced)
Pressure rating	PN 40
Temperature range	2 °C to 150 °C
Standard size	AFP 2
MOQ	1