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Three-Way Flanged Cast Iron Globe Valve DN40-DN500

Three-Way Flanged Cast Iron Globe Valve DN40-DN500

VF53 cast steel series electric steam control valves are suitable for continuous control in district heating systems and HVAC systems. It can be assembled with Siemens SAX, SKD, SKB, and SKC series actuators.

Additional information

Description

Three-Way Flanged Cast Iron Globe Valve Features

  • The face-to-face dimensions of the valve flange comply with ISA 75.03 requirements.
  • Close-off up to 250 psi.
  • Direct-assemble, standard bonnet.
  • Bronze or stainless steel trim.
  • Standard- or high-temperature packaging.
  • Rangeability of more than 100 to 1.
  • An equal percentage (NC port) and linear (NO port) flow characteristics
  • Only a 3/4″ stroke is available in the 2-1/2″ and 3″ sizes, while a 1-1/2-inch stroke is offered in the 4″, 5″, and 6″ sizes.
  • Cartridge-type packing for convenient servicing.
  • • ANSI Leakage Class IV (0.01% of Cv).
  • Available for purchase as a full valve/actuator combination or as a valve separately.

Three-Way Flanged Cast Iron Globe Valve Applications

The Flowrite Two-way valves are designed for situations of water, steam, and glycol up to 50 percent. The following are extra specifications:

  • Water upstream pressures as high as ANSI 125 and ANSI 250 cast iron body rating.
  • Water modulating differential pressure as high as 25 psi (172 kPa) for bronze trim and 50 psi (345 kPa) for stainless steel trim.

Technical Parameters

Valve Size ……………………………………………………………………….2-1/2 to 6”
Body Style ………………………………………………………………………….Flanged
Action ……………………………………………………………..Three-way Water Mix
Stem Travel
2-1/2 and 3”…………………………………………………………….. 3/4” (20 mm)
4, 5 and 6” ……………………………………………………………. 1-1/2” (40 mm)
Valve Body Rating …………………………………………… ANSI Class 125 or 250
Materials
Body ………………………………………………….Cast Iron, ASTM A 126 Class B
Trim…………………………………………………………. Bronze or Stainless Steel
Stem……………………………………….. Stainless Steel, ASTM A582 Type 303
Packing
Liquid Service to 250°F (120°C) …………………………………… EPDM O-rings
Operating
Controlled Medium …………………………Water, Glycol Solutions up to 50%
Medium Temperature Range…………………………20 to 250°F (-7 to 120°C)
Max. Recommended Differential Pressure for Modulating Service
Bronze Trim ……………………………………………………….. 25 psig (173 kPa)
Stainless Steel Trim………………………………………………. 50 psig (345 kPa)
Flow Characteristics
Upper Port …………………………………………………………..Equal Percentage
Lower Port ………………………………………………………………………… Linear
Rangeability ……………………………………………………………………….>100:1

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