Danfoss AB-PM DN 20 differential pressure controller & flow limiter, Standard, external thread

Danfoss AB-PM DN 20 — combined automatic balancing valve and differential-pressure controller (standard version) for hydronic heating and cooling systems. The AB-PM integrates four functions in one threaded body: a differential-pressure controller that holds a constant Δp across the connected terminal or riser, an automatic flow limiter (presetting caps the maximum flow), a modulating control-valve seat driven by a Danfoss actuator on the M30 x 1.5 connection, and a manual shut-off. Because the valve keeps the differential pressure stable, connected control valves retain their full authority and the branch stays balanced across all load conditions without manual re-commissioning. DZR brass CuZn36Pb2AS (CW 602N) body, PN 16, differential-pressure range 18 KPa to 400 KPa, maximum controllable flow 0.60 m³/h at Δp=10 kPa, stroke 2.25 mm, media temperature -10 °C to 120 °C, mounted in the supply pipe. Connection: External thread ISO 228/1G 1A. OEM P/N 003Z1403. Technical data quoted verbatim from store.danfoss.com (code 003Z1403). Used in commercial refrigeration, provision-room cooling and reefer plant rooms across HFC, HFO and CO2 (R744) refrigerants.

Code number

003Z1403

Type

AB-PM

Product group

Automatic balancing

Description

AB-PM DN 20, without test plugs, combined automatic balancing valve

Valve size

DN 20

Pressure version

Standard

Connection types

External thread ISO 228/1G 1A

Actuator connection

M30 x 1.5

CV stroke

2.25

Differential pressure [kPa] [Min]

18 KPa

Differential pressure [kPa] [Max]

400 KPa

Flow max at Δp [m3/h]

0.60 m³/h at Δp=10 kPa

Impulse tube length [m]

1.5 m

Mounting position

Supply pipe

Pressure class

PN 16

Valve body material

DZR brass CuZn36Pb2AS (CW 602N)

Shut-off leakage rate (ISO 5208)

Rate A

Media temperature [°C] [Min]

-10 °C

Media temperature [°C] [Max]

120 °C

Contains batteries

No

EU RoHS compliance

Yes with exemptions

EU RoHS exemption clause

6(c)

China RoHS compliance

Out of scope

REACH Candidate List substances

Lead (CAS no. 7439-92-1)

Net weight

0.808 Kilogram

Gross weight

0.808 Kilogram

Volume

1.289 Liter

SCIP dossier no.

8a719b7a-89ad-4626-9fab-802d2aee9c72

SCIP dossier product name

AB-PM DN20 without test plugs

EAN

5710104034690

Material

Valve body DZR brass CuZn36Pb2AS (CW 602N)

Pressure Rating

PN 16

Temperature Range

-10 °C to 120 °C (media)

Classification / Approval

CE

HS Code

8481.80