Danfoss AFPA 2 PN 40 self-acting differential-pressure-relief actuator — setting 0.1–0.4 bar, 640 cm² diaphragm, valve DN 65–250 (003G5702) — Datasheet

Danfoss AFPA 2 PN 40 — a self-acting differential-pressure-relief controller (surplus differential-pressure / overflow controller). It opens the matching globe valve body via its rolling-diaphragm actuator when the differential pressure across the controlled section exceeds the spring setting, discharging surplus flow through a bypass to hold the differential pressure at the set maximum. 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 0.1–0.4 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 "AFPA 2, PN 40, 0.1 bar - 0.4 bar, 640 cm²". OEM P/N 003G5702. Technical data quoted verbatim from store.danfoss.com (code 003G5702). 1.0345, zinc plated; diaphragm EPDM (Rolling, fibre enforced); Standard size: AFPA 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.

AFPA 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 (0.1–0.4 bar), actuator size (640 cm²) and the valve-body size range (DN 65–250). For plain pressure relief use AFA; for differential-pressure control (constant, not relief) use AFP; for pressure reduction use AFD. AFPA mounts in a bypass line. Confirm actuator size, setting range and matching valve body against the AF-range data sheet before ordering.

Code number	003G5702
Type	AFPA 2
Product group	Actuators - Pressure Flow
Gross weight	57 Kilogram
Net weight	40.3 Kilogram
Volume	186.96 Liter
Actuator diaphragm material	EPDM (Rolling, fibre enforced)
Actuator size [cm²]	640 cm²
Application	District heating and cooling
Body material	Steel, mat. No. 1.0345, zinc plated
China RoHS compliance	Yes with exemptions
China RoHS exemption clause	7.3
Contains batteries	No
Diameter [mm] [Max]	250 mm
Diameter [mm] [Min]	65 mm
Differential pressure setting [bar] [Max]	0.4 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. relief 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	Bypass
Operating pressure [bar] [Max]	40 bar
Permissible media	District heating/cooling circulation water
Pressure class	PN 40
Pressure controller	Differential pressure relief controller
Pressure nominal [bar]	40 bar
Setting Type	Adjustable
EAN	5710104523620
HS code	8481.90
Nominal diameter	DN65

Danfoss AFPA 2 PN 40 self-acting differential-pressure-relief actuator — setting 0.1–0.4 bar, 640 cm² diaphragm, valve DN 65–250 (003G5702)

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	AFPA 2
MOQ	1