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지멘스, SIEMENS

 
작성일 : 17-11-10 13:34
[밸브(Valve)] VVF,VXF, 2way,3way control valve
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   VVF,VXF_Basic_documentation_en.pdf (1.9M) [75] DATE : 2017-11-10 13:34:04

Product no.

VVF, VXF             
                    
  • With flanged connections to ISO 7005
  • For cooling, chilled, low and high temperature water, brine, heat transfer oils, saturated and superheated steam in open and closed circuits
Additional info
When using valves of the V..F43.., V..F53.. lines with a stem heating element and a medium temperature of below -5 °C, the stem sealing gland must be replaced.
 
 
Attribute
Value
Stroke
To DN 50: 20 mm, From DN 65: 40 mm
Leakage rate
0...0.01 % of kvs value
DN
15
kvs
4 m³/h
Medium
Water , Water with anti-freeze
Medium temperature
-20…220 °C
Valve characteristic
Equal percentage , kvs 250/400 linear
Rangeability
DN 15, kvs ≤ 1,25 m³/h: >50 , DN 15...150: >100
Permissible operating pressure
2500 kPa
Material, valve body
Nodular cast iron EN-GJS-400-18-LT
Material, inside set
Stainless steel
PN class
PN 16 , PN 25
Absolute pressure p1 steam
1600.00 kPa abs
SAX.. Δpmax
1200 kPa
SAX.. Δps
2500 kPa
SAX..Y Δpmax
1200 kPa
SAX..Y Δps
2200 kPa
SKD.. Δpmax
1200 kPa
SKD.. Δps
2500 kPa
SKB.. Δpmax
1200 kPa
SKB.. Δps
2500 kPa