西門子動態平衡閥 Siemens ACVATIX™ Combi Valves VPP46… VPI46…

描述

With integrated differential pressure controller
DN 10…DN 32: Valve body made of dezincification resistant hot-pressed brass (DZR)
DN 40…DN 50: Housing made of spheroidal graphite iron
Volumetric flow 30… 11500 l/h,
Differential pressure range 15…600 kPa
Internally threaded Rp conforming to ISO 7-1
Externally threaded G conforming to ISO 228-1
Version with pressure test points for Δp measurement (optional)
Can be equipped with electro thermal or electromotive actuators
SSA.. (3-position, DC 0…10 V and KNX communication)
STA..65.. / STP..65..
SUA21/3P, SUE21P (2-position SPST)
SAY..1P03 (3-position or DC 0…10 V)

PN class	PN 25 as per EN 1333
Permissible operating pressure	2.500 kPa (25 bar) as per ISO 7628 / EN 1333
Max. differential pressure	600 kPa
Min. differential pressure	See tables volumetric flow/dial presetting
Valve characteristic	Linear as per VDI/VDE 2173
Leakage rate in general	Class IV (0…0.01% of volumetric flow V100) to EN 1349 DN 25…32 with STA..3.. Class III (0…0,1% of volumetric flow V100) per EN 1349
Average flow accuracy	+/-10% from ΔPmin – to 2.5 x ΔPmin +/- 5% from 2.5 x ΔPmin – to 600kPa
Permissible media	Low-temperature hot water, chilled water, water with antifreeze Recommendation: Water treatment to VDI 2035
Medium temperature	Valve with actuator 1…120 °C Valve with actuator 1…110°C with SUA21/33), SUA21/3P, SUE21P
Permissible ambient temperature	1…50 °C
Materials	Valve body, port, seat, sealing gland and test points: Dezincification resistant hot-pressed brass (DZR), CW602N Valve body DN 40…50: Nodular cast iron
Stem, spring	Stainless steel
Presetting element	PTFE, PPO, POM C and ABS
Regulator	PPS
Seals	EPDM 281 (O-ring)
Threaded connections	VPP46..: G to ISO 228-1 (externally threaded) VPI46..: Rp to ISO 7-1 (internally threaded)
Actuator connection	DN 10…32: M30 x 1.5 mm DN 40…50: Siemens large stroke connector
Pressure test points (P/T-ports)	G 1/4” (connection valve body) 2 mm x 40 mm (needles)