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RD Series: High-Pressure Diaphragm Valve

Overview

  • A new, high pressure valve that is compactly designed and has a simple external appearance to match today’s needs.
  • Reduced torque and improved durability are added to the manual valve.
  • Simple and compact piping system is made possible by using the automatic valve that has a slim cylinder shape with an air piping in the upper side.
  • Newly added 210K Type, High-Pressure Valve (1/2 inch) satisfies the user seeking Large Volume High-Pressure Valve.
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Valve Features: Manual

RD Series consists of High-Pressure Manual Valves featuring a compact body that requires even less torque to operate than the low torque types in the past. Due to the resin-coated handle that is newly employed, you can feel very smooth operation. A larger window hole and easy-to-see OPEN/CLOSE mark are adopted so that whether it is open or close is instantly noticed. The shunt port of the shunt type can be set to any direction.

Valve Features: Pneumatic

The new cylinder-shaped actuator moves on a minimal line pitch, thus it is not necessary to consider the orientation after the installation. Also to be noted is the patented wedge-toggle structure that is incorporated in this valve, and ensures the operation even under high surge pressure. In addition, rigidity at the conjunction point between the body and actuator is increased so that the reliability is increased. It needs 0.4 ~ 0.7Mpa of operating air pressure, and a stable operation is ensured even at the low limit of the air pressure.

Major Specifications

Type (Size) 1/8 inch 1/4 inch 1/2 inch

Cv Value

0.04

0.1

0.28

Internal Volume

0.12cm3

1.0cm3

6.5cm3

Maximum Working Pressure

16.2MPa(G.)

16.2MPa(G.),20.6MPa(G.)

20.6MPa(G.)

Maximum Working Temp

PCTFE: -10~42°C
PI: -10~150°C

Operating Pressure

0.4~0.7MPa(G.)

Internal Leakage Allowance

Valve Seat Leakage 3X10-10Pa•m3/s

External Leakage Allowance

External Leakage 3X10-12Pa•m3/s

Cycle Life

Pneumatic Valve 100,000 repeats (N2 charged, own test)
Manual 30,000 repeats (N2 charged, own test)