Install Instructions

VG7000 Series Bronze Control Valves Installation Instructions 7
Valve Assembly Maximum
Allowable Pressure/
Temperature
Steam Brass Trim: 35 psig (241 kPa) Saturated Steam at 281°F (138°C)
SS Trim: 100 psig (690 kPa) Saturated Steam at 338°F (170°C)
Water Brass Trim: 400 psig (2,756 kPa) up to 150°F (66°C), Decreasing to
365 psig (2,515 kPa) at 248°F (120°C)
SS Trim: 400 psig (2,756 kPa) up to 150°F (66°C), Decreasing to
308 psig (2,122 kPa) at 338°F (170°C)
Leakage Brass Trim 0.01% of Maximum Flow per ANSI/FCI 70-2, Class 4
SS Trim 0.05% of Maximum Flow
Inherent Flow Characteristics Two-Way
Valves
Equal Percentage
Three-Way
Mixing
Valves
Linear
Rangeability
2
> 25:1 for the 1/2 in. size, Cv 0.73, valve bodies
> 100:1 for all other VG7000 series valves
Spring Range Pneumatic
Actuators
3 to 6 psig (21 to 41 kPa) for All Except MP8000;
3 to 7 psig (21 to 48 kPa) for MP8000 Only;
4 to 8 psig (28 to 55 kPa);
9 to 13 psig (62 to 90 kPa)
Maximum Recommended
Operating Pressure Drop
Steam Brass Trim: 15 psig (103 kPa) for All Valve Sizes
SS Trim: 100 psig (690 kPa) for All Valve Sizes
Water Brass and SS Trim: 35 psig (241 kPa) for 1/2 through 1-1/4 in. Valves;
30 psig (207 kPa) for 1-1/2 and 2 in. Valves
Maximum Actuator Supply
Pressure (Pneumatically
Actuated Valves Only)
25 psig (172 kPa) Maximum
Materials Body: Cast Bronze
Bonnet: Brass
Brass Trim Stem: Stainless Steel
Plug: Brass
Seat: Brass Against Molded Elastomeric Disk
Packing: Self-Adjusting Ethylene Propylene Rubber (EPR) Ring Pack
U-Cups
SS Trim Stem: Stainless Steel
Plug: Stainless Steel
Seat: Stainless Steel
Packing: Spring Loaded Polytetrafluoroethylene (PTFE) and
Elastomer V-Rings
VG7000 Series Bronze Control Valves (Part 2 of 3)