Product Made In Japan
Manufacturer: IHARA SCIENCE CORPORATION
Model: PISTON VALVE

FOR EFFICIENCY PROMOTION/COST REDUCTION/LONGER LIFE IN THE ADHESION PROCESS IN THE AUTOMOBILE PRODUCTION LINE.

ALWAYS CREATES AN OPTIMAL FLOW.

Applying WEARLESS VALVE, a single action piston valve adapted to hemming sealer, makes it possible to realize production efficiency and significantly reduce maintenance costs by positively controlling fluid flow in applications such as high-viscosity adhesives containing glass beads.

Main Features

• Single action (Products of other makers’ are double action)

  • With the spring return design being ‘AIR Less Close’ complete closure of fluid at pressure of 20MPa can be achieved, and operation air for piston upper part is not required – therefore no water puddle. Air piping required for double action is not required.

• Features of the stem seal

  • With the adoption of the ‘special steel scrapper’, adhesive material seeping into the gland part can be prevented and wear due to sliding of glass beads have been overcome by the combination in the design of the ‘gland packing adaptable for high viscous fluid’ based on track records in seals and with the super polished stem. Drastic shot endurance has been realized.

• Special characteristics of the valve seat

• With the use of the highest quality ‘special alloy’ material for the valve and valve seat as well as by utilizing the unique production know-how such as the remarkable precision in the improved machining process, superior closing performance is being exhibited. Wear resistance and longer life incomparable with other valves have been achieved.

• Impact reduction mechanism

  • In order to enhance durability of the valve seat, impact reduction mechanism has been adopted for protection against impact encountered by the valve seat at spring return. By providing a needle valve mechanism for control of the operation air pressure exhaust velocity at valve closing, limited adjustability has been provided to the speed control mechanism.

• Weight reduction and non-corrosiveness

  • In addition to the compact design with the adoption of the high resistance special plate spring and high viscosity duralumin body, the material adopted for the vessel is non-corrosive light weight aluminum alloy. This light and high performance piston valve employs stainless steel and special high grade material for vital parts.

Application Fields:

• Systems related to conveying adhesive: Control valves for piping high viscosity adhesive containing glass beads for hemming sealer and sealant in automobile assembly plants.
• Systems related to conveying high viscosity liquid containing solid: Flow control valves for ‘liquids containing solids’ such as various high viscosity liquids (e.g., silicone, caulking material, printing ink), and various slurries, sludge, fibrous materials, powder, etc.

Specification

Dimension