Specifications

Damper Butterfly Valve, Aeration valve
1. Small flow resistance, high turnover
2. Temp up to 1100oC
3. Sealing performance

Damper Butterfly Valve with Pneumatic Actuator for Dusty Gas Hot Air

1. Uses the center-line type structure

2. Easy installation, low flow resistance, large circulation

3. Applied to chemical, building materials, power station, glass industry etc

 

Damper Butterfly Valve for Dusty Gas Hot Gas with Pneumatic Actuator - Lapar Valve

Damper butterfly valve Parameter

Actuator	Pneumatic (5~7Bar), Handwheel(option)
DN	100~2000mm
Pressure	0.01~0.1Mpa
Temperature	-196~1100°C
Contact	Flange, Wafer
Structure	A shape
Material of body	316L, 316, 304, 304L, WCB
Material of Disc	316L, 316, 304, 304L, WCB
Medium	Dusty gas, Gas
Option	Limited Switch, Locator, Solenoid Valve, Pressure-relief Valve

Damper Butterfly valve Design Featurer

• Body: The body is welded by steel plate for lighter weight .smaller volume,lower cost,and choosing high temperature resistant material can withstand higher
• temperature.
• V type packing: The sulfur-free flexible v-graphite packing overcomes the faults of normal packing including zero compensation and large deformation,
• prolongs the service life, and is able to with stand high temperature.
• Seat: The seat ring can reduce leakage and ensure the disc close to 0°.
• Disc: The disc is made of steel plate,and stiffeners in both sides can make it withstand deformation due to wind effectively.
• Ring: The ring has a location effect,which makes the disc turn in the middle of channel.

 

Standard

• Valve body is designed to meet IEC60534-3-1-2001 and GB/T 12221-2005 API609
• Valve mounting flange shall be per ISO 5211
• Flange Standard: JB/T79.1-94,JB/T79.4-94. HG20616-97,ANSI B16.5,ANSI B16.47
• The highest pressure: 1 .OMPa, Temperature range: -196°C ~1100°C
• Leak standard: ANSI B16.104

Damper butterfly valve Main Feature

• Medium can flow through the body directly for little resistance and high flow capacity
• The body and cover could be made of carbon steel,austenitic stainless steel or special alloy material
• The sulfur-free flexible v-graphite is heat resisting ,we shall ensure the service life of packing is long-term without maintenance by increasing pre-pressure on spring gasket
• Center line-type butterfly valve uses metal sealing seat,which surrounds the disc to reduce the leakage effectively 

Damper butterfly valve for Dasty gas hot air, Aeration butterfly valve with pneumatic actuators