Danfoss VFG 21 Pressure-Relief Globe Valve Body DN65 PN 16 Kvs 50 m³/h (2-Way flanged)

Part Number
065B2508 · HS 8481.80

Danfoss VFG 21 2-way flanged globe (seat) valve body, OEM order code 065B2508. Nominal size DN65, pressure class PN 16, flow coefficient Kvs 50 m³/h. The VFG 21 is a two-way pressure-relieved valve body (function "Pressure relief"), the body element of Danfoss pressure / differential-pressure / flow controllers. It pairs with a matched self-acting (AFA / AFP / AFT / AVT) or electric (AMV / AME) actuator to form a temperature, pressure, differential-pressure or flow controller. Grey cast iron EN-GJL-250 (GG-25) body with stainless-steel, mat. no. 1.4404 cone and stainless-steel, mat. no. 1.4021 seat, EPDM sealing, linear optimized flow characteristic, 12 mm stroke, spindle normally open. Rated for district heating media at 2 °C to 150 °C, maximum differential pressure 16 bar. Data quoted verbatim from store.danfoss.com (code 065B2508).

Technical Specifications

Brand

Danfoss

Part number

065B2508

Type

VFG 21

Product group

Pressure flow controllers

Application

District Heating

Valve size

DN 65

Pressure class

PN 16

Nominal pressure

16 bar

Kvs value

50 m³/h

Connection type

Flange

Number of ports

Function

Pressure relief

Flow characteristic

Linear optimized

Spindle position

Normally open

Stroke

12 mm

Differential pressure (max)

16 bar

Cavitation factor

0.5

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)

0.01 % Kvs

Valve body material

Grey cast iron EN-GJL-250 (GG-25)

Valve cone material

Stainless steel, mat. No. 1.4404

Valve seat material

Stainless steel, mat. No. 1.4021

Sealing material

EPDM

Net weight

35.32 Kilogram

Gross weight

35.32 Kilogram

EAN

5702421804254

HS code

8481.80 (taps, cocks, valves for pipes)

Compatibility

Valve body for Danfoss pressure / flow control-valve assemblies. Combine the VFG 21 DN65 body with a matched self-acting (AFA / AFP / AFT / AVT) or electric (AMV / AME) actuator sized for the required duty. Select the body by nominal size (DN65), pressure class (PN 16) and flow coefficient (Kvs 50 m³/h); verify actuator stroke 12 mm and media compatibility before ordering.

Material	Grey cast iron EN-GJL-250 (GG-25); cone Stainless steel, mat. No. 1.4404; seat Stainless steel, mat. No. 1.4021; seal EPDM
Pressure rating	PN 16 (16 bar); max differential pressure 16 bar
Temperature range	2 °C to 150 °C
Standard size	DN 65
MOQ	1

Danfoss VFG 21 Pressure-Relief Globe Valve Body DN65 PN 16 Kvs 50 m³/h (2-Way flanged)

Technical Specifications

Properties

Compatibility

Attached Documents