• Excellent Sealing Performance
Sealing performance has been improved due to its specially designed seat "PAT pending".

• Lowered Operating Torque
Required operating torque has been reduced by applying specially designed seat.

• Protection for Over Tightening of Mating Flange
The valve body acts as a protector against over tightening to avoid breakage or deformation of the seat. 

• Spherical Design Disc
Spherical design disc provides superior durability and improved Cv value.

• Stem Retainer
Stem retainer allows field automation or accessories preventing the stem from being removed.

• Newly Developed Plastic Gear Box

Corrosion resistant plastic gear box provides a broader range of applications.

• Step Further to All Plastic
TYPE 56 with lever operator butterfly valves which metal parts are reduced as much as possible.

• Easy Transformation of Operation Devices
Application of modular design on top flange provides the valve with flexible and easy change of operation types, from lever to gear and from manual to automatic and so on.

• Excellent Handling and Safety
Application of newly innovative locking device(patent pend-ing)for lever type gives the valve opening degrees by 19 levels. And also handle lever with locking hole provides one solution against wrong handle operation.

 • Handle Lever with Flexibility of Mounting Direction
Symmetric design on top flange offers easy change of handle lever mounting direction at working site.

• High Corrosion Resistance

The body and disc are made of PDCPD. And the corrosion-resistant resin, covering the whole contact surface,makes the valve highly resistant against chemical and sea water.

 • Light Weight

PDCPD having 1/4 or less the specific gravity of iron, the PDCPD BUTTERFLY VALVES is significantly lighter than a metallic butterfly valves.

• Tight Seal

A seat made of a synthetic rubber, makes the valve highly water-tight.

• Excellent Flow Characteristics

Being concentric and streamlined, the disc gives small resistance to a flow, thus allowing it to be laminar. The seat is kept clean, since it is integrated with the entire internal wall of the body.

• Easy to Install

The seat is flanged, so that it needs no gasket. The PDCPD BUTTERFLY VALVES is so light that it is easy install.

 • Economics

Because of its high corrosion resistance, the PDCPD BUTTERFLY VALVES remains easy to operate after prolonged periods of use and needs little maintenance. Its light weight reduces piping costs.

• Extreme Corrosion Resistance
All of the wetted parts are completely covered with PTFE, which can result in excellent performance against a highly corrosive media.

•  Improved Cv Value
Thinner disc makes the area of flow passage wider and the Cv value is improved as a result.

• Excellent resistibility to high and low temperature.
BUTTERFLY VALVES TYPE 55 can be used continuously at the range from -20? to 100? (-5°F to 210°F). 

• Simple Structure for Stem Sealing
Simple structure for stem sealing offers high reliability and also allows for easy maintenance.

• HIGH CORROSION RESISTANCE AGAINTS CORROSIVE FLUID (IDEAL FOR CORROSIVE
  CHEMICAL LINE)

• Cv VALUE IS IMPROVED BY REDUCED DISC THICKNESS AND LARGER OPENING AREA

• EXCELLENT HEAT AND COLD RESISTANCE ALLOWING FOR CONTINUOUS
  OPERATION AT -20 TO 100ºC

• SIMPLE STEM SEAL STRUCTURE FACILITATES MAINTENANCE.

• Incorporated Lug Function into the Type57 Butterfly Valves Design.

• Easy for Maintenance
Easy to draw out fluid No-leakage under full line pressure.

• Protection for Over Tightening
Body acts as a protector against over tightening to prevent breakage or deformation of seat.

• Plastic Gear Box
Extremely corrosion resistant and easy operation.

• SIGNIFICANTLY REDUCES THE BURDEN OF FLUID REMOVAL WORK

• THE OVERTIGHTENING PREVENTION MECHANISM ELIMINATES THE RISK OF SEAT
  BREAKAGE.

• PLASTIC GEAR BOX WITH EXCELLENT CORROSION RESISTANCE AND HIGH
  OPERABILITY.

• Incorporated Lug Function into the Type57 Butterfly Valves Design.

• Easy for Maintenance
Easy to draw out fluid No-leakage under full line pressure.
Incorporated Lug Function into the Type57 Butterfly Valves Design. 

• Protection for Over Tightening
Body acts as a protector against over tightening to prevent breakage or deformation of seat.

•Plastic Gear Box
Extremely corrosion resistant and easy operation.

• Easy Transformation of Operation Devices
Application of modular design on top flange provides the valve with flexible and easy change of operation types, and from manual to automatic and so on.

 • USE OF PDCPD BODY IMPROVED PRESSURE RESSISTANCE PERFORMANCE

• Short Face-to-Face Dimension
The Valves are Designed to Comply ISO5752 Short Face-to-Face dimension and allowed Replacement of Common Metal Valves. 

• Easy Piping Maintenance
It is not necessary to remove fluid from the pipe line. Same Features as Type 57L.