VG7000 Series Stainless Steel Trim Globe Valves with VA7800 Series Electric Actuators 1 | ||
---|---|---|
Service 2 |
Hot water, chilled water, 50/50 glycol solutions, and 38 psig (262 kPa) saturated steam for HVAC systems |
|
Fluid temperature limits |
Water |
35°F to 338 ° F (2°C to 170 ° C) |
Steam |
100 psig (690 kPa) at 338°F (170°C) |
|
Valve stroke |
5/16 in. |
For all 1/2 in. and 3/4 in. valves |
1/2 in. |
For all 1 in. and 1-1/4 in. valves |
|
3/4 in. |
For all 1-1/2 in. and 2 in. valves |
|
Valve body rating |
Meets requirements of ASME B16.15 Class 250 |
|
Valve assembly maximum allowable pressure/temperature |
Water |
400 psig (2,756 kPa) up to 150°F (66°C) decreasing to 308 psig (2,122 kPa) at 338°F (170°C) |
Steam |
100 psig (690 kPa) saturated steam at 338°F (170°C) |
|
Maximum recommended operating pressure drop |
35 psi |
For 1/2 in. through 1-1/4 in. valves |
30 psi |
For 1-1/2 in. and 2 in. valves |
|
Flow characteristics |
Two-way |
Equal percentage |
Three-way |
Linear |
|
Rangeability 3 |
> 25:1 according to EN60534-2-4 for the 1/2 in. size, Cv 0.73, valve bodies 100:1 according to EN60534-2-4 for all other valves |
|
Actuator ambient operating temperature limits |
VA7800 Series |
23°F to 131°F (-5°C to 55°C) |
Leakage |
0.05% of maximum flow |
|
End connections |
NPT |
Factory or field assembly |
Materials |
Body |
Cast bronze |
Bonnet |
Brass |
|
Stem |
300 Series Stainless Steel |
|
Plug |
300 Series Stainless Steel |
|
Seat |
300 Series Stainless Steel |
|
Packing |
Spring-loaded Polytetrafluoroethylene (PTFE) and elastomer V-rings |
|
Compliance |
Canada |
CRN: 0C22556.5 |
WARNING
WARNING
WARNING
1 In steam applications, install the valve with the stem horizontal
to the piping and wrap the valve and piping with
insulation.
2 Proper water treatment
is recommended; refer to the VDI 2035 Guideline.
3 Rangeability is
defined as the ratio of maximum controllable flow to minimum
controllable flow.