Data Sheet for Product

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CM1N4252en_f

2018-11-30

Siemens Building Technologies

HVAC Products

252

Series 02

Four-port slipper valves

PN10, female-threaded

VCI31..

Four-port slipper valves, PN10, female-threaded

· Grey cast iron EN-GJL-250

· DN 20...40

· k

6.3...25 m

· Angle of rotation 90°

· Female-threaded connections, Rp¾ ... Rp1½

· With manual adjuster

· Can be fitted with type SQK.., SQL.. or SAL..T10 (with ASK32N)

electromotoric actuators

· No maintenance required

Application

For use in closed-circuit heating systems, preferably in mixing applications.

Summary of content (8 pages)

PAGE 1
4 252 Series 02 Four-port slipper valves PN10, female-threaded VCI31.. Four-port slipper valves, PN10, female-threaded · · · · · · · Grey cast iron EN-GJL-250 DN 20...40 kvs 6.3...25 m3/h Angle of rotation 90° Female-threaded connections, Rp¾ ... Rp1½ With manual adjuster Can be fitted with type SQK.., SQL.. or SAL..T10 (with ASK32N) electromotoric actuators · No maintenance required Application For use in closed-circuit heating systems, preferably in mixing applications.
PAGE 2
Types Type VCI31.20 VCI31.25 VCI31.32 VCI31.40 DN kvs Dpmax 1) Accessories 1) Ordering Connection [Inch] DN kvs [m3/h] Rp ¾ Rp 1 Rp 1¼ Rp 1½ 20 25 32 40 6.3 10 16 25 with actuators SQK.. 1), SQL.. 1), SAL..
PAGE 3
Equipment combinations Actuator overview Type Actuators SQK34.. 1), SQK84.. 1) VCI31.20 VCI31.25 VCI31.32 VCI31.40 direct mounting Type SQK33.00 1) 2) SQL33.00 1) 4) SQL33.03 1) 4) SQK34.00 1) 3) SAL31.00T10 5) SAL31.03T10 5) SAL61.00T10 5) SAL61.03T10 5) SAL81.00T10 5) SAL81.03T10 5) SQL83.00 1) 4) SQK84.00 1) 3) 1) 2) 3) 4) 5) SQK33.00 1) SQL33.. 1), SQL83.. 1) SAL..
PAGE 4
Sizing 1 0.5 0.2 0.1 0.05 0.01 0.005 0.002 0.001 0.02 Dpv100 [bar] Flow diagram 30 8.3 20 5.6 4.17 2.77 8 2.22 6 5 1.66 0) DN " (4 ) 1½ 32 "( 5) 1¼ (2 0) 1" (2 " ¾ 4 3 2 1.11 0.83 0.56 0,42 1 V100 [l/s] V100 [m³/h] 10 0,28 0.8 0.6 0.17 Dpv100 [kPa] 30 40 50 60 80 100 20 8 10 0.056 3 4 6 0.2 2 0.083 0.3 0.4 0.5 0.6 0.8 1 0.3 0.2 0.11 0.1 0.4 4232D01 0.
PAGE 5
Notes Engineering The VCI31.. four-port valves should be installed in accordance with the flow-direction arrows on the slipper valve body. In systems where oxygen can enter the hydraulic system, there is an increased risk of corrosion which can cause the valve slipper to seize.
PAGE 6
Maintenance Warning Disposal Before performing any service work on the 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. Do not dispose of the device as household waste.
PAGE 7
Technical data Functional data PN class Working pressure Flow characteristic, all paths Permissible media Materials Dimensions / weight Standards, directives and approvals Medium temperature Angle of rotation Slipper valve body Shaft Slipper O-rings Manual adjuster Scale plate for position indication see «Dimensions» Threaded connections EAC conformity Pressure Equipment Directive Pressure Accessories Fluid group 2: DN 20…40 Environmental compatibility PN 10 to ISO 7268 max.
PAGE 8
Dimensions G J* K ** H All dimensions in mm øD A 4252M01 D DN B Type DN øD [Inch] A B D G H J* K ** Weight [kg] VCI31.20 20 Rp¾ 110 110 14.5 24.5 74 46 34 1.4 VCI31.25 25 Rp1 VCI31.32 32 Rp1¼ 42.5 81.5 53.5 41.5 2.1 VCI31.40 40 Rp1½ Overall height of slipper valve and actuator 17 130 130 19 2.3 DN øD J* K ** = = = = Nominal size Rp… threaded pipe connections to ISO 7-1 Installation height of actuators SQK34.