Valve technology
In the case of common ball valves, it is inconvenient to replace the entire ball valve if the rubber ring fastened to the stem wears to cause leakage.
VALCON valve is designed to remove the stem from the outside after removing the stem fixing bolt, so it can be used continuously by replacing the stem.
Ball Valve Construction
'STEM' Replacement method
Things to keep in mind
➊ After disassembling the electric actuator, loosen the fixing screw (plate head) of the plate (bracket) attached to the valve
and turn it counterclockwise as shown in the figure to remove the 'STEM' anchor bolt.
➋ Must remove the 'STEM' carefully using the proper tools, such as long-nose.
➌ While turning the 'STEM' little by little in the left and right direction, push the key part of the 'STEM' completely into the
groove of the ball.
➍ After working as shown in the figure and fixing the plate fixing screw and the electric actuator, be sure to run the test to
check for any abnormality.
and turn it counterclockwise as shown in the figure to remove the 'STEM' anchor bolt.
➋ Must remove the 'STEM' carefully using the proper tools, such as long-nose.
➌ While turning the 'STEM' little by little in the left and right direction, push the key part of the 'STEM' completely into the
groove of the ball.
➍ After working as shown in the figure and fixing the plate fixing screw and the electric actuator, be sure to run the test to
check for any abnormality.
'VALCON' ball valve is developed for electric actuator to operate with minimum rotational force during
operation, so ball valve is stable.
operation, so ball valve is stable.
Ball valve dimensions
Ball valve Standard and Specifications
| Model | VA15A-1N | VA15A-2N | VA20A-1N | VA25A-1N | VA15A-3L | VA32A-1N | VA40A-1N | VA50A-1N | VA15A-2S | VA20A-2S | VA25A-2S |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Diameter | 15mm | 15mm | 20mm | 25mm | 15mm | 32mm | 40mm | 50mm | 15mm | 20mm | 25mm |
| Ball bore | 10mm | 10mm | 15mm | 20mm | 10mm | 25mm | 32mm | 40mm | 10mm | 15mm | 20mm |
| Weight | 265g | 260g | 293g | 471g | 302g | 945g | 1,200g | 1,700g | 225g | 270g | 440g |
| Operating Temperature |
0℃ ~ 90℃ [32°F ~ 194°F]
♨Please contact us when using high temperature |
0℃ ~ 120℃ [32°F ~ 248°F] | 0℃ ~ 120℃ [32°F ~ 248°F] | ||||||||
| Suitable Actuators |
AT Series, A2 Series, AD-S Series, AC220-50S
However, VA15A-3L is modified separately and "L" is added.
Ex) AT12-2TL, AD24-3TSL, AC220-50SL |
AD Series, AC220-50 | AT Series, A2 Series, AD-S Series, AC220-50S | ||||||||
| Body O-ring | NBR | FKM | FKM | ||||||||
| Stem O-ring | NBR | FKM | FKM | ||||||||
| Ball | C3604BD (Chromium-plated) | SUS | SUS304, SUS316 | ||||||||
| material | Brass | Stainless steel | |||||||||
| Body | C3771BE (Nickel-plated) | SCS13A, SCS14A | |||||||||
| Cap | C3771BE (Nickel-plated) | SCS13A, SCS14A | |||||||||
| Stem | C3771BE (Nickel-plated) | SUS304, SUS316 | |||||||||
| StemAnchorbolt | C3771BE (Nickel-plated) | SUS304, SUS316 | |||||||||
| Ball Seat | PTFE | ||||||||||
| StemAsher(Upper) | PTFE | ||||||||||
| StemAsher(Lower) | PTFE | ||||||||||
| Allowable Pressure | 10kgf/㎠ [142PSI] | ||||||||||
| Permtted Fluid | Non-corrosive liquids and gases | ||||||||||