HomeProductsValves (Bronze & Brass)Fixed Orifice Double Regulating Valve (GDRV-101)

Fixed Orifice Double Regulating Valve (GDRV-101)

Specification

Type: Fixed orifice
Size range: 15mm ~ 50mm
Max. working pressure: 25 bar
Testing pressure: 37.5 bar (Shell)br/>    27.5 bar (Seat)
Working temperature: -10 ?C to 120 ?C
Connention: BS 21 (ISO7)br/>   ANSI B1.20.1
Standard: Comply to BS 7350

Note :
1. Kvs at fully open position.

Download

For a comprehensive overview of the product specifications mentioned above, feel free to download the product catalog here.

Features

  • Y-pattern globe design.
  • Integral fixed orifice plate to form a fixed orifice flow
    measurement unit with regulation and isolation function.
  • Accuracy of +/-5% at full open position of the valve.
  • Equipped with 2 measuring nipples for differential
    pressure measurement.
  • Microset handwheel adjustment with easily readable settings.
  • Multi-turn adjustment range for maximum flow control.
  • Double regulating feature allows valve opening to be set
    with allen key.
  • Long neck for thermal insulation.
  • Bronze body of PN25 pressure rating.

Application

Tozen Double Regulating Valves are installed and used in centralised heating and cooling systems to obtain designflow rates of each terminal units and balancing the circuits in the building.

Function

  • Balancing
  • Measuring
  • Pre-setting
  • Isolating

Materials

Part Material ASTM EN
Body Bronze B62 B83600 EN1982 CC491K
Bonnet DZR Brass B453 C35330 EN12165 CW602N
Stem DZR Brass B453 C35330 EN12165 CW602N
Disc DZR Brass B453 C35330 EN12165 CW602N
Orifice Insert DZR Brass B453 C35330 EN12165 CW602N
Measuring Nipples DZR Brass B453 C35330 EN12165 CW602N
O-Ring EPDM    
Handwheel ABS    

Structure

Size (mm) L (mm) H (mm) Weight (kg) Kvs
15 90 109 0.6 2.20
20 98 110 0.6 4.60
25 105 125 0.8 8.50
32 120 128 1.1 16.70
40 130 145 1.4 26.10
50 150 148 2.0 43.20