PDFPrintE-mail

Dwyer-Globe Control Valves-2

( Dwyer )

General

The Series GV2 and GV3 globe valves can be conveniently paired with the Series EVA2 and EVA3 electric actuators, creating a low cost and compact control valve package. The globe design allows for exceptional throttling control in a wide range of applications, including central heating and air conditioning, water handling, and industrial manufacturing systems. Valves are manufactured in a variety of sizes, and are available in either two-way or three-way body styles. The forged brass body and equal percentage flow characteristic are ideal for many flow control systems. Series GV3 models incorporate a high intensity body casting for high temperature applications, including steam service.

Features

• Low leakage rate (less than 0.05% of Cv)

• Equal percentage flow characteristic for excellent low flow

control

• Forged brass construction

• Direct mounting actuator (Series EVA2 and EVA3) for

compact control valve package

• GV3: Higher temperature rating, capable of steam service

• Control flow in heating or cooling processes

 

Specifications:

Service

GV2: Compatible liquids and gases.

GV3: Compatible liquids, gases, and steam.

Line Size

1˝ to 2-1/2˝.

Body Style

2-way, push to open globe; 3-way globe.

End Connections

Female NPT.

Pressure Limit

232 psi (16 bar) WOG; GV3: 130 psi SWP (9.0 bar).

Wetted Materials

Body Material

Brass.

Stem

SS (1Cr18Ni9).

Disc

GV2-Brass with Nitrile Gasket.

GV3- Brass with Fluon ® gasket.

Packing

GV2: Fluon® filler with Nitrile O-ring.

GV3: Fluon® filler with Fluorine O-ring.

Temperature Limits

GV2: 35 to 201°F (2 to 94°C), GV3: 35 to 356°F (2 to 180°C).

Flow Characteristic

Equal percentage

Flow Leakage

Less than 0.05% of Cv factor.

Stem Connection

M8 thread.