Metso GW Series Installation Maintenance And Operating Instructions
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Metso GW Series Installation Maintenance And Operating Instructions

Globe 3-way, diverting & mixing type control valves
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Control Valves
Globe 3-way, Diverting & Mixing type
Series GW
Installation, Maintenance and
Operating Instructions

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Summary of Contents for Metso GW Series

  • Page 1 Control Valves Globe 3-way, Diverting & Mixing type Series GW Installation, Maintenance and Operating Instructions...

  • Page 2: Table Of Contents

    These instructions provide information about safe handling and operation of the valve. If you require additional assistance, please contact the manufacturer or manufacturer's representative. Addresses and phone numbers are printed on the back cover. See also www.metso.com/valves for the latest documentation. SAVE THESE INSTRUCTIONS! Subject to change without notice.

  • Page 3: General

    The type code is explained in Section 11. Mixing type Diverting type Fig. 1 Construction of the Neles GW series 3-way Valve Valve markings Markings on the identification plate: Type designation (Valve code) The body markings are: manufacturer's trademark, nominal Size, Rating size, pressure rating and material of the body.

  • Page 4: Technical Specifications

    Actuator mounting: threaded bonnet with yoke nut or level depends on the application. It can be measured or bolted yoke calculated using the Metso Nelprof software. Observe the relevant working environment regulations in terms of Stem connection: clamp with bolts/nuts noise emission.

  • Page 5: Valve Installation

    4 GV 74 en Do not remove the flow port protectors until immediately Control valve assembly before installation of the valve into the pipeline. Check all joints, piping and cables. The valve is delivered in the closed position. A valve Check that the actuator stop screws, positioner and limit equipped with a spring-return actuator is delivered in the switches are calibrated.

  • Page 6: Gland Packing Adjustment

    4 GV 74 en Gland packing adjustment Table 1 Required torques for bonnet nuts Required Torques In the event of a packing leakage tighten the hexagon nuts Valve Size Bonnet Stud Bolts (± 5 % allowable) Rating (18) in ¼ turn steps each until the leakage is stopped. Do Carbon Steel St.

  • Page 7: Testing The Valve

    4 GV 74 en   Clean the body gasket surface. Tighten hexagon nuts (17) until plug and seat con-  Insert and tighten the each new top and bottom seat tact is obtained with proper bolt torque. rings (7 & 7a) into the body (1) and bottom flange NOTE: (26).

  • Page 8: Removal & Mounting The Actuator

    .  Loosen stem locknut and socket head screws (27) Several types of Metso actuators can be used with suitable and hexagon nuts (28). clamps. Refer to the model VD spring-diaphragm and VC ...

  • Page 9: Tools

    4 GV 74 en TOOLS Removal of the actuator  L- wrench set (mm)  Hex. socket wrench set  Chisel and hammer (10 pound)  +,- drivers ORDERING SPARE PARTS NOTE: Always use original spare parts to make sure that the valve functions as intended.

  • Page 10: Exploded View And Parts List

    4 GV 74 en EXPLODED VIEW AND PARTS LIST Item Description Recommended spare part BODY PLUG STEM PLUG PIN SEAT RING SEAT RING BONNET GLAND GLAND FLANGE YOKE NUT STUD STUD HEXAGON NUT HEXAGON NUT LANTERN RING 22** PACKING SPRING BOTTOM FLANGE HEXAGON SCREW WASHER...

  • Page 11: Dimensions And Weights

    4 GV 74 en DIMENSIONS AND WEIGHTS 10.1 Valve GW 150 # / 300 # / 600 # (UNIT: mm) Dimension Weight (kg) 150# 300# 600# 150# 300# 600# STD 150# 300# 600# 150# 300# 600# 150# 300# 600# 150# 300# 600# 150# 300# 600# COMMON Size 1"...

  • Page 12: Actuators Vd, Vc

    4 GV 74 en 10.2 Actuators VD, VC (UNIT: mm) Size Weight (kg) NPT 1/4 NPT 1/4 NPT 1/4 NPT 1/4 NPT 1/4 1. "Br" & "Er" refers to reverse acting actuator, VDR 2. "Bd" & "Ed" refers to direct acting actuator, VDD (UNIT: mm) Size Weight (kg)
  • Page 13 4 GV 74 en (UNIT: mm) Size Weight (kg) 1053 NPT 1/4 1053 1106 NPT 1/4 1106 1. "Br" & "Er" refers to reverse acting actuator, VDR 2. "Bd" & "Ed" refers to direct acting actuator, VDD...
  • Page 14 4 GV 74 en Size # 30 (UNIT: mm) Weight (kg) Stroke ØC Ø370 NPT 3/8 Ø370 NPT 3/8 Ø370 NPT 3/8 Ø370 NPT 3/8 Ø370 NPT 3/8 Ø370 NPT 3/8 Size # 40 (UNIT: mm) Weight (kg) Stroke ØC Ø460 NPT 1/2 Ø460...
  • Page 15 4 GV 74 en Size # 30 (UNIT: mm) Weight (kg) Stroke ØC Ø370 NPT 3/8 1020 Ø370 NPT 3/8 1040 Ø370 NPT 3/8 1080 Ø370 NPT 3/8 1100 Ø370 NPT 3/8 1140 Ø370 NPT 3/8 1180 Size # 40 (UNIT: mm) Weight (kg) Stroke...

  • Page 16: Type Code

    (50) 135 (60) 240 (70) 360 (70) Special trim type Special Special Contact Metso Automation for Cv details * Rated Cv is separeted depending on the trim type & trim characteristic. * Srk. & number in the bracket means the valve stroke. Metso Automation Inc.

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