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- VVF53.40-25C
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PRODUCT DESCRIPTION
VVF53.40-25C Flanged Two Port Control Valve
Siemens VVF53.40-25C is an ACVATIX flanged two-port control valve with DN 40 connections, PN 25 pressure class and a kvs value of 25 m³/h. It regulates compatible fluids in heating, cooling and building-service flow circuits.
The ductile-iron valve body uses flanged connections and a twenty-millimetre actuator stroke. A separately selected compatible actuator positions the valve to the required flow demand. Permitted pressure, leakage performance and the −20–220 ℃ medium range depend on the documented fluid and actuator conditions; the pressure class does not permit unrestricted 25 bar operation at every temperature.
The ductile-iron valve body uses flanged connections and a twenty-millimetre actuator stroke. A separately selected compatible actuator positions the valve to the required flow demand. Permitted pressure, leakage performance and the −20–220 ℃ medium range depend on the documented fluid and actuator conditions; the pressure class does not permit unrestricted 25 bar operation at every temperature.
BEFORE YOU BUY
Confirm the complete flanged two port control valve
ACTUAL APPLICATIONS
Application context for VVF53.40-25C
VVF53.40-25C regulates fluid flow in heating, cooling and building ventilation. Suitability depends on medium compatibility, pressure-temperature limits and the selected actuator. Apply the DN 40 connection, kvs 25 flow coefficient and manufacturer selection tables to the intended circuit.
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01 · HEATING
Heating and Thermal Energy Distribution
District Heating Flow RegulationBoiler Circuit Heat Distribution -
02 · COOLING
Cooling and Chilled Water Distribution
District Cooling Flow RegulationCooling Tower Water Circulation -
03 · BUILDING VENTILATION
Building Ventilation and Air Conditioning
Building Air Conditioning ControlAir Handling Thermal Regulation
Technical specifications for VVF53.40-25C
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Product ModelVVF53.40-25C
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Product ParametersFlanged Two Port Control Valve
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In stock8 units
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ManufacturerSiemens
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Nominal valve diameterDN 40
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Nominal pressure classPN 25
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Rated flow coefficientkvs 25 m³/h
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Valve flow arrangement2-port, straight-through
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Nominal actuator stroke20 mm
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Permitted medium temperature−20–220 ℃; medium-specific restrictions
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Valve body materialEN-GJS-400-18-LT ductile iron
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Flange formEN 1092-2, type 21, facing B
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Straight-through leakage0–0.01% of kvs; class IV
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RangeabilityGreater than 100
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Stem, seat and plug materialStainless steel
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Stem packing materialSilicone-free FEPM
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Operating ambient temperature−15–55 ℃
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Operating relative humidity5–95% RH
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Compatible actuator familiesSAX/SAV; SKD/SKB/SKC, subject to selection tables
View all additional
Alternative Names
VVF53.40-25C
ACVATIX DN40 PN25 two-port valve
VVF53 kvs25 flanged regulating valve
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SYSTEM INTEGRATION
Integrate VVF53.40-25C flanged two port control valve
Select a manufacturer-approved actuator for the VVF53.40-25C valve and the required closing differential pressure. Confirm the actual fluid and circuit design against the ACVATIX selection tables.
Check DN 40 flanges, the 200 mm face-to-face length and the pressure-temperature operating envelope. Follow the stated flow direction and provide the required installation clearances.
Use the applicable valve and actuator instructions for assembly and commissioning. Verify actuator travel, flow regulation and circuit tightness under safe conditions before accepting operation.
Features:
- Nominal valve diameter: DN 40
- Nominal pressure class: PN 25
- Rated flow coefficient: kvs 25 m³/h
The VVF53.40-25C flanged two port control valve requires appropriate configuration before system integration and commissioning.
INTERCHANGEABILITY
Verify VVF53.40-25C flanged two port control valve
Match VVF53.40-25C, DN 40, PN 25 and kvs 25 before replacement. Similar valve bodies with different flow coefficients do not establish equivalent control behaviour.
Record the actuator designation, flow direction, flange arrangement and circuit operating conditions. Isolate, depressurise and cool the circuit using the manufacturer procedure before removal.
Fit the verified valve and compatible actuator, then test travel and circuit tightness. Confirm regulation over the intended operating range and retain the final acceptance record.
Features:
- Nominal valve diameter: DN 40
- Nominal pressure class: PN 25
- Rated flow coefficient: kvs 25 m³/h
The VVF53.40-25C flanged two port control valve requires replacement verification against the complete installed configuration and current manufacturer documentation.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The linked files are Amikong-hosted reference documents. Match their product identity and scope to the supplied assembly, and consult the applicable manufacturer instructions before use. Accessories and additional documents are included only when expressly listed in the quotation.
Features:
- Verify document identity before procurement or installation
- Match the complete order to the manufacturer document scope
- Accessories are supplied only when listed in the quotation
Documentation for the VVF53.40-25C flanged two port control valve must be checked for document applicability before installation or commissioning.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size20 × 15 × 21.65cm
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Shipping weight10.10kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8481804090
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OriginGermany
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
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FREQUENTLY ASKED QUESTIONS
Questions buyers ask about VVF53.40-25C
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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What do DN 40 and kvs 25 identify on this valve?
DN 40 identifies the nominal pipe size; kvs 25 m³/h is the rated flow coefficient. Both must match the circuit design. -
Is an actuator integral to the bare VVF53 valve?
No. Select a compatible actuator from the manufacturer’s combination tables. Supplied accessories are determined by the quotation. -
Does PN 25 permit 25 bar at every medium temperature?
No. Use the manufacturer pressure-temperature envelope and fluid restrictions; PN 25 alone does not define every permissible operating point. -
What stroke is required from the selected actuator?
The nominal stroke for this DN 40 valve is 20 mm. Check the actuator combination and closing differential-pressure limits. -
What straight-through leakage is documented?
For this size range the manual states 0–0.01% of kvs, class IV, subject to the applicable actuator and operating conditions. -
Which physical length must match the existing pipe gap?
The DN 40 valve has a 200 mm face-to-face length. Check flange dimensions and mounting clearances as well. -
What circuit data should be supplied for a valve quotation?
Provide VVF53.40-25C, medium, temperature, operating and closing differential pressures, and the required actuator arrangement. -
What must be checked when receiving the DN 40 control valve?
Compare the valve identification, flanges and actuator combination with the quotation. Inspect the body and connections before fitting it into the isolated circuit.
READY TO VERIFY YOUR PART?
Get a VVF53.40-25C quote with price, lead time and revision check.
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