A6V11213406 ACVATIX™ Combi valves PN 16 with VPF43../1 flanged connections Pressure Independent Combi Valves · · · · · · With integrated pressure differential controller Valve body made of gray cast iron GJL-250 and GJS-400 DN 50 - 150 Volumetric flow 15 to 195 m3/h nominal, with presetting Equipped with pressure test points P/T Can be equipped with SAX..P.., SAV..P.. or SQV..P..
Type summary H100 Standard flow rate High flow rate DN Product number Stock number DN VPF43.50F16/1 S55266-V124 50 VPF43.65F24/1 S55266-V125 65 VPF43.80F35/1 S55266-V126 80 VPF43.100F70/1 S55266-V127 100 VPF43.125F110/1 S55266-V128 125 VPF43.150F160/1 S55266-V129 150 VPF43.50F25/1 S55266-V130 50 VPF43.65F35/1 S55266-V131 65 VPF43.80F45/1 S55266-V132 80 VPF43.100F90/1 S55266-V133 100 VPF43.125F135/1 S55266-V134 125 VPF43.
Equipment combinations Actuators Valves SAX..P.. VPF43.50F16/1 50 flow rate VPF43.65F24/1 65 VPF43.80F35/1 80 VPF43.100F70/1 100 VPF43.125F110/1 125 VPF43.150F160/1 150 High flow VPF43.50F25/1 50 rate VPF43.65F35/1 65 H100 SAV..P..
Technical / mechanical design 1 1 Ring with dial for presetting 2 Aperture for the differential pressure controller is linked with outlet port B 3 Differential pressure controller 4 Plug with variable presetting opening 5 Control valve 6 Pressure test point (P/T) at outlet port B, blue ribbon, P- 7 Pressure test point (P/T) at inlet port A, red ribbon, P+ A Inlet port A B Outlet port B 2 3 7 6 4 5 B 4315Z01 A Functional principle The Combi valves VPF43..
Medium flow The medium entering the Combi valve (inlet port A) first passes through the control valve (5) with a linear characteristic and a stroke of 20 mm (DN 50…80) respectively 40 mm (DN 100…150). The actuator (not shown here) opens and accurately positions the control valve. Then, the medium flows through the variable presetting opening (4) which is connected to the ring with dial (1) for presetting the desired maximum volumetric flow.
Sizing Engineering example Basis of design 1. Determine heat demand Q [kW] 2. Determine temperature spread ΔT [K] 3. Calculate volumetric flow & = Q [kW] × 1000 é l ù V 1.163 × DT [K] êë h úû 4. Select suitable Combi valve VPF43.../1 5. Determine dial setting using volumetric flow/dial presetting tables, see below. Example 1. Heat demand Q = 150 kW 2. Temperature spread ∆T = 6 K 3. Volumetric flow & = 150 kW × 1000 = 21'654 l / h = 21.6 m 3 / h V 1.
VPF43.150F160/1 3 [m /h] Dial Min, 0,2 kPa 3 0,4 25.6 0.6 31 0.8 160 m /h nominal 38 44 51 57 63 72 76 82 89 96 104 111 120 128 137 148 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 21.0 21.2 21.4 21.6 21.7 22.0 23.0 24.5 26.3 28.0 30.0 30.8 31.8 32.7 33.8 35 High flow rate 3 VPF43.50F25/1 25 m /h nominal 3 [m /h] Dial kPa Min. 0.2 0.4 4.3 0.6 5.2 0.8 6.2 1 19 7.2 8.1 9 10 11 12.1 13.2 14.3 15.4 16.5 18.2 19.9 21.6 23.3 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 19.4 19.
Engineering notes Valve Symbols / Direction of flow Flow in control mode VPF43.. /1 Combi valve variable Valve stem retracts extends closes opens The direction of flow indicated (arrow on the valve body) is mandatory! The valves should preferably be mounted in the return pipe where temperatures are lower and where the sealing gland is less affected by strain.
Installation notes Presetting It is recommended to mount the actuator before the presetting is made. 1. Mount actuator and fix valve neck coupling 2. Mount valve stem coupling and tighten slightly 3. Make presetting according to table under "Volumetric flow/dial presetting" on page 6. Do NOT adjust presetting to a dial reading lower than “0.6”. 4. Tighten stem coupling 8 mm Using an open-end wrench and turn the stem with dial to the desired presetting position.
Commissioning notes The valves must be commissioned with the actuator correctly fitted. Strong pressure impacts can damage closed Combi valves. The Combi valves have to be open when flushing or pressure testing the system. Strong pressure impacts can damage closed Combi valves. Differential pressure Δpmax across the valve’s control path is not allowed to exceed 600 kPa. Manual control Only possible with mounted actuator. Maintenance notes The VPF43../1 Combi valves are maintenance-free.
Technical data Functional data PN class PN 16 as per EN 1333 Permissible operating pressure 1600 kPa (16 bar) as per ISO 7628 / EN 1333 Volumetric flow deviation < ±10% within differential pressure range Valve characteristic Linear as per VDI/VDE 2173 Leakage rate Class IV (0…0.
Dimensions / weight Dimensions Refer to "Dimensions" on page 12 Flange connections To ISO 7005-2 Pressure test points (P/T-ports) G ¼ inch (connection) 2 mm x 40 mm (measuring tips) Weight Refer to "Dimensions" on page 12 Operation Transport EN 60721-3-3 EN 60721-3-2 Class 3K5 Class 2K3 0…55 °C -30...65 °C 5...95 % r.h. < 95 % r.h. General ambient conditions Environmental conditions Temperature Humidity Storage EN 60721-3-1 Class 1K3 -15...50 °C 5...95 % r.h.
Revision Numbers Product number Valid from rev. no. Product number Valid from rev. no. VPF43.50F16/1 ..A VPF43.50F25/1 ..A VPF43.65F24/1 ..A VPF43.65F35/1 ..A VPF43.80F35/1 ..A VPF43.80F45/1 ..A VPF43.100F70/1 ..A VPF43.100F90/1 ..A VPF43.125F110/1 ..A VPF43.125F135/1 ..A VPF43.150F160/1 ..A VPF43.150F200/1 ..
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 © Siemens Switzerland Ltd, 2017 Technical specifications and availability subject to change without notice.
