Danfoss VG Control Valve Body DN 50 PN 25 Kvs 20 m³/h (2-Way threaded)

Danfoss VG two-way threaded seat (globe) control valve body, OEM order code 065B0779. Nominal size DN 50, pressure class PN 25, flow coefficient Kvs 20 m³/h. The VG is the valve-body element of a Danfoss district heating control-valve assembly: it pairs with a matched electric AMV / AME (or self-acting) actuator to form a temperature, pressure or flow controller. Ductile cast iron EN-GJS-400-18-LT (GGG 40.3) body with DZR brass CuZn36Pb2AS (CW 602N) cone and stainless-steel, mat. 1.4571 seat, approx. linear flow characteristic, 10 mm stroke, spindle normally open, piston pressure relief. Rated for district heating/cooling circulation water at 2 °C to 150 °C, maximum differential pressure 16 bar. Connection G 2 1/2 A (ISO 228/1). OEM P/N 065B0779. Data quoted verbatim from store.danfoss.com (code 065B0779). 1.4571; Standard size: DN 50; Thread: ISO 228/1; Pressure rating: PN 25 (25 bar); max differential pressure 16 bar; Temperature range: 2 °C to 150 °C; Approval: CE; Approvals: CE; HS code: 8481.80. Deployed in process, utility and marine piping loops for on-off shutoff, control, safety relief or diversion service.

Brand

Danfoss

Part number

065B0779

Type

VG

Product group

Motorized control valves

Application

District Heating

Function

Control valve

Valve size

DN 50

Pressure class

PN 25

Nominal pressure

25 bar

PN alternative (VSP)

16

Kvs value

20 m³/h

Connection type

External Thread

Connection size

G 2 1/2 A

Connection standard

ISO 228/1

Number of ports

2

Flow characteristic

Approx. linear

Cavitation factor

0.6

Spindle position

Normally open

Pressure relief system

Piston

Stroke

10 mm

Diameter

50 mm

Differential pressure (max)

16 bar

Media temperature

2 °C to 150 °C

Permissible media

District heating/cooling circulation water

Medium alternative

Glycolic water up to 30%

Media pH range

7 to 10

Leakage through port (max)

0.05 % Kvs

Mounting version

Free

Valve body material

Ductile cast iron EN-GJS-400-18-LT (GGG 40.3)

Valve cone material

DZR brass CuZn36Pb2AS (CW 602N)

Valve seat material

Stainless steel, mat. No. 1.4571

Sealing material

EPDM

Net weight

4.054 Kilogram

Gross weight

4.054 Kilogram

Volume

5.054 Liter

EAN

5702421543610

HS code

8481.80 (taps, cocks, valves for pipes)

Size / Series

DN 50

Material

Ductile cast iron EN-GJS-400-18-LT (GGG 40.3); cone DZR brass CuZn36Pb2AS (CW 602N); seat Stainless steel, mat. No. 1.4571

Thread Standard

ISO 228/1

Pressure Rating

PN 25 (25 bar); max differential pressure 16 bar

Temperature Range

2 °C to 150 °C

Classification / Approval

CE

HS Code

8481.80