Model Number

VQ 250

Description:
• Mainly used for the special vapor modulating for hot-providing, air-conditioning and refrigeration control system
• Used for hot water, high pressure hot water, gas, hot oil, saturation vapor and steam supply system in open or close-circuit system
Features:
• Precision Cast (Resin Sand)
• Flanged end according to ISO 7005 standard
• Accord to Manufacture License of Special Equipment People’s Republic of China
• Adopt pressure-balanced valve bodies which promote shut -off ability under condition of low force. Easily turn on/off under high differential pressure
Technical Data:
• Operating Pressure: PN16
• Stroke:   DN32-–DN100: 20mm
                  DN100–DN250: 40mm
• Leakage Rate: 0...0.02%Kvs
• Medium Temperature: +1...+220��br />• Valve Characteristic: Equal-percentage
• Material:   Valve Body: Spherical Graphite Cast Iron QT 450
                     Stem: Stainless Steel
                      Disc,Seat: Stainless Steel
• Seal: Compact Special Seal

Selection Table(Suiting with VMA��MC Series Actuators): 

Flanged 2-port Modulating Valves Stroke 20mm

VQ32.22	DN32/16 (m3/h)/PN16
VQ40.22	DN40/19 (m3/h)/PN16
VQ50.22	DN50/31(m3/h)/PN16
VQ65.22	DN65/49(m3/h)/PN16
VQ80.22	DN80/78(m3/h)/PN16
VQ100.22	DN100/110(m3/h)/PN16

Flanged 2-port Modulating Valves Stroke 40mm

VQ100.24	DN100/ 124(m3/h)/PN16
VQ125.24	DN125/200(m3/h)/PN16
VQ150.24	DN150/300(m3/h)/PN16
VQ200.24	DN200/450(m3/h)/PN16
VQ250.24	DN250/630(m3/h)/PN16

Flanged 3-port Modulating Valves Stroke 40mm

VQ200.34	DN200/450(m3 /h)/ PN16
VQ250.34	DN250/630(m3 /h)/ PN16

We also can manufacture the cast steel valve body for special working conditions:
Model VG,PN25,Medium Temperature:+1~350��/span>