Data Sheet for Product

ManualsBrandsSiemens ManualsRotary actuators (BC6)Dreiweghähne, PN6, VBF21..

CM1N4241en_d

2018-11-30

Building Technologies

241

Series 02: DN40 and DN50 Series 01: DN 65...150

Three-port slipper valves PN6

VBF21..

Three-port slipper valves, PN6, flanged

· Grey cast iron EN-GJL-250

· DN 40...150

· k

25...820 m

· Angle of rotation 90°

· Flange fittings to ISO 7005

· Manual adjuster for DN40 and DN50 slipper valves

· Can be fitted with type SQK.. or SAL..T10 electromotoric actuators

· No maintenance required

Use

For use in closed-circuit heating systems and mixing applications.

Summary of content (8 pages)

PAGE 1
4 Series 02: DN40 and DN50 241 Series 01: DN 65...150 Three-port slipper valves PN6 VBF21.. Three-port slipper valves, PN6, flanged · · · · · · · · Grey cast iron EN-GJL-250 DN 40...150 kvs 25...820 m3/h Angle of rotation 90° Flange fittings to ISO 7005 Manual adjuster for DN40 and DN50 slipper valves Can be fitted with type SQK.. or SAL..T10 electromotoric actuators No maintenance required Use For use in closed-circuit heating systems and mixing applications.
PAGE 2
Type summary Type DN kvs [m /h] VBF21.40 1) VBF21.50 1) VBF21.65 VBF21.80 VBF21.100 VBF21.125 VBF21.150 40 50 65 80 100 125 150 25 40 63 100 160 550 820 DN kvs Dpmax 1) 2) Accessories 3 SQK.. 2) Dpmax [kPa] SAL..
PAGE 3
Actuator overview Type Actuator Operating Positioning Positioning type voltage signal time for 90° SQK33.00 1) 2) SQK34.00 1) 3) 5) SAL31.00T10 4) SAL31.03T10 4) SAL61.00T10 4) SAL61.03T10 4) SAL81.00T10 4) SAL81.03T10 4) SQK84.00 1) 3) 5) 1) AC 230 V Electromotoric 3) 4) 5) DC 0..10 V 3-position AC 24 V Data sheet 5 Nm N4506 N4508 10 Nm N4502 5 Nm N4508 ab 2019: nur solange Vorrat SQK33.00 SQK34.00 SQK84.
PAGE 4
Notes Engineering Use the VBF21.. in mixing applications. In systems where oxygen can enter the hydraulic system, there is an increased risk of corrosion which can cause the valve slipper to seize. Mounting variants Boiler flow from left Factory setting Mounting 1) DN 65...150 Re-position the valve slipper, scale plate and manual adjuster (DN 40 and DN 50), as described in the mounting instructions. The slipper valves are easy to assemble directly on site.
PAGE 5
Maintenance Warning Before performing any service work on the slipper valve, actuator or mounting kit: · switch OFF the pump and power supply · close the main shut-off valve in the pipework · release pressure in the pipes and allow them to cool down completely. · If necessary, disconnect electrical connections from terminals. The slipper valve can be commissioned with the manual adjuster fitted, or with a correctly fitted actuator. Disposal Do not dispose of the device as household waste.
PAGE 6
Technical data Functional data Standards, directives and approvals Environmental compatibility Materials Dimensions / weight PN class Working pressure PN 6 to ISO 7268 max. 600 kPa (6 bar) to ISO 7005 within the permissible medium temperature range Flow characteristic through-port linear bypass linear Leakage rate DN 40…100 0 ... 0,1 % of kvs -value DN 125…150 0 ...
PAGE 7
Dimensions All dimensions in mm J* K** H VBF21.40 / VBF21.50 (with manual adjuster) F DN D E A 4241M01 C B K** 40 VBF21.65 .. VBF21.150 (without manual adjuster) D F DN E 4241M02 C B A Type DN A B C D VBF21.40 VBF21.50 40 50 180 180 90 90 130 140 16 16 100 14 (4x) 96 68 110 14 (4x) 103 75 VBF21.65 65 200 100 160 16 130 14 (4x) 43 9.5 VBF21.80 VBF21.100 VBF21.125 VBF21.150 80 100 125 150 230 260 320 350 18 18 20 20 150 170 200 225 52 68 129 144 14.5 18.3 36.
PAGE 8
Spare parts Order numbers for spare parts manual adjuster 3-port slipper valve VBF21.40 VBF21.50 VBF21.65 VBF21.80 VBF21.100 VBF21.125 VBF21.150 Issued by Siemens Switzerland Ltd Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel. +41 41-724 24 24 www.siemens.com/buildingtechnologies 7467601750 © Siemens Switzerland Ltd, 2011 Technical specifications and availability subject to change without notice. 6/8 Siemens Building Technologies VBF21..