The Air-Plus Valve

Feature :

The Air-Plus Valve's seat is designed on a new concept and completely overcomes the main source of valve seat wear. The seats entrap particles that are normally the cause of wear during the period of valve closure. Entrapping particles within a flexible surface of seat during the period of valve closure prevents particle movement and considerably reduces valve seat wear. The inflatable seats also allows automatic wear compensation.

Model Series:

 APSA Series Operations Actuator/Manual (Handle) Valve Size 2" ~40" (50A ~ 1,000A) Pressure Rating JIS 10K/ANSI 150lbs Connection Wafer Type Temperature -20°C ~ +200°C Applications COG/LDG Gas, Oligosaccharide, Cement Powder, Ceramic Powder,Coal Powder, Si Powder, Etc... Material Body : Carbon/Stainless Steel Disc : Carbon/Stainless Steel Seat : NBR/EPDM/VMQ/FKMPrinciple of Operation Applications CVD (Continuous Vacuum Dryer) Process Ag(Sliver) Manufacture Process Ag(Sliver) Manufacture Process Conveying ABS Resin Process Conveying Process for Manufacture of Cement Conveying Cereals (Grain) Process Conveying Detergent Process Conveying COG/LDG Gas ProcessSeat Option A/Eccellent, B/Good, C/Fail, D/Unsatisfactrory   NBR EPDM FKM VMQ Physical Special Quality and Property of Synthetic Rubbers Specific Gravity 1.00 ~ 1.20 0.86 ~ 0.87 1.80 ~ 1.82 0.95 ~ 0.98 Solidity (Shore-A) 40 - 90 40 - 90 60 - 90 30 - 80 Tensile Strength (kg/cm2) 50 - 250 50 - 200 70 - 150 30 - 90 The Coefficient of Expansion (%) 100 - 500 100 - 500 100 - 300 100 - 500 Repulsive Elasticity B B C A Max. Temperature (°C) 100 140 220 200 Min. Temperature (°C) -25 -40 -25 -75 Abrasion-Proof A C B C Winding Cracking-Proof B B B C Ozone-Proof D A A A Permanent Compressive Shrinkage-Proof B B B B Gas Permeability-Proof B C B D Flame-Proof D D A C Oil-Proof & Solvent-Proof of Synthetic Rubbers Lubricating oil A D A B Gasoline B D A D Hydrocarbon of Relative Fatty A D A D Hydrocarbon of Relative Aromatic D D B D Lorine Solvent D D A D Alcohol A A B C Krtone B A C B Acid-Proof & Alkali-Proof of Synthetic Rubbers Water A A A A Weak Acid B A A B Strong Acid D B A D Alkali B A C B*Information is based upon published data. dongjooAP gloves have not been individually tested against these chemicals. Variability in material thickness, Pressure, temperature, and length of exposure to chemicals will affect specific performance. NBR(Nitrile Butadiene Rubber)BUNA-N is a copolymer of butadiene and acrylonitrile. BUNA-N has good solvent, oil, water and hydraulic fluid resistance. It displays good compression set, abrasion resistance and tensile strength, BUNA-N should not be used in highly polar solvents such as acetone and methyl ethyl ketone, nor should it be used in chlorinated hydrocarbons, ozone or nitro hydrocarbons. EPDM (Ethylene Propylene Dien Monomer)EPDM has good abrasion and tear resistance and offers excellent chemical resistance to a variety of acids and alkalines. It is susceptible to attack by oils and is not recommended for applications involving petroleum oils, strong acids or strong alkalines. It has exceptionally good weather, ageing and ozone resistance. It is fairly good with ketones and alcohols. FKM/FPM (Fluorocarbon Elastomers)FKM is inherently compatible with a broad spectrum of chemicals. Because of this extensive chemical compatibility, which spans considerable concentration and temperature ranges, fluorocarbon elastomers have gained wide acceptance as a material of construction for butterfly valve o-rings and seats. Fluorocarbon elastomers can be used in most applications involving mineral acids, salt solutions, chlorinated hydrocarbons, and petroleum oils. They are particularly good in hydrocarbon service. VMQ (Dimethyl Polysiloxane)VMQ is typically have moderate solvent resistance. Heat and low temperature characteristics, oxidation and ozone resistance are good. A primary feature of silicone is its release characteristics. Silicone can be blended with other materials to offer increased physical characteristics. Silicone would typically be used in applications that have high temperature or have specific chemical compatibility issues. Dimension Size 2 3 4 6 8 10 12 14 16 18 20 24 32 50 80 100 150 200 250 300 350 400 450 500 600 800 H * * 382 455 506 560 585 650 699 763 828 927 * L * * 74 83 96 102 108 115 123 134 153 165 * D * * 175 240 290 355 400 445 483 538 593 687 * A * * 244 282 282 366 366 450 450 450 828 828 *Dimension, feature, specifications can be changed for the improvement of its performance. The * indication is special order size.

The Air-Plus Valve product offered by Dongjoo AP Co., Ltd.