Selection Guide

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Linked Globe Valve Assemblies Specifications
Table-11 Specifications for 1/2” to 2” Vx-7xxx-5xx-4-P Series and 2-1/2” and 3” Vx-9xxx-5xx-4-P Series Linked Globe
Valve Assemblies.
Linked Globe Valve Assemblies
2-Way 3-Way
Applications Chilled or Hot Water, or Steam Chilled or Hot Water
Type of End Fitting
NPT, Rp Screwed
NPT, Rp Screwed
Union Straightway (up to 1-1/4”)
Size
Vx-7xxx-5xx-4-P 1/2" through 2" (15 mm through 50 mm)
Vx-9xxx-5xx-4-P 2-1/2" and 3" (65 mm and 80 mm)
Action Stem Up Open or Stem Up Closed Mixing or Diverting
Valve Assembly Series
a
a
To determine a specific part number, see the Linked Globe Valve Assembly Part Numbering System.
Vx-72xx-5xx-4-P
Vx-92xx-5xx-4-P
Vx-73xx-5xx-4-P
Vx-93xx-5xx-4-P
Flow Type Equal Percentage
b
b
For a detailed description of the flow, see page 9 (2-way valves) or page 10 (3-way valves).
Linear
b
Valve Body
Materials
Body Bronze Bronze
Seat Bronze Bronze
Stem Stainless Steel Stainless Steel
Plug Brass Brass
Packing Spring-loaded TFE Spring-loaded TFE
Disc EPDM —
Linkage
Materials
Housing Corrosion-Resistant Steel Corrosion-Resistant Steel
Rack & Pinion Steel Steel
ANSI Pressure Class (Figure-3)
250 psig (1724 kPa), up to 400 psig
(2758 kPa) below 150 °F (66 °C)
c
c
Do not apply the above pressure rating to the piping system.
250 psig (1724 kPa), up to 400 psig (2758 kPa)
below 150 °F (66 °C)
c
Pressure Class (VB-7xx5) PN16 PN16
Rangeability See Table-5 500:1
Seat Leakage ANSI Class IV (.01%) ANSI Class III (0.1%)
STEAM
Inlet Pressure — Maximum 35 psig (241 kPa) —
Fluid Temperature — Maximum 281 °F (138 °C) —
Allowable Differential Pressure
d
d
Maximum recommended differential pressure. Do not exceed the recommended differential pressure (pressure drop) or the integrity of valve parts may be
affected. Exceeding the maximum recommended differential pressure voids the product warranty.
20 psi (138 kPa) —
WATER
Fluid Temperature — Minimum
1/2” through 2” 20 °F (-7 °C)
2-1/2” and 3” 40 °F (4 °C)
1/2” through 2” 20 °F (-7 °C)
2-1/2” and 3” 40 °F (4 °C)
Fluid Temperature — Maximum 1/2” through 3” 281 °F (138 °C) 1/2” through 3” 300 °F (149 °C)
Allowable Differential Pressure
d
35 psi (241 kPa) Max. for Normal Lifespan
(refer to "Cavitation Limitations on Valve
Pressure Drop" on page 15)
35 psi (241 kPa) Max. for Normal Lifespan
(refer to "Cavitation Limitations on Valve
Pressure Drop" on page 15)
1/2” through 2”
Valve Assemblies
2-1/2” and 3”
Valve Assemblies
1/2” through 2”
Valve Assemblies
2-1/2” and 3”
Valve Assemblies