Metal Seated Ball Valves Spring Return Pneumatic Actuator

Ethylene And Refinery Revamping Project Metal-seated ball valves spring-return Scotch Yoke pneumatic actuators





Features


1. Versatility
2. Efficient
3. Safety
4. Corrosion Resistance
5. Highly Sealed
6. Long Service Life



► Our advantage:



1     We have professional technicists to ensure advanced design.
2     We have professional and technical QC team to ensure 100% products checking.
3     We have own factory with competitive price and good quality.
4     Our products is accepted by all over the world.
5     We have own import and export right. small order can be accepted.
6     High quality with competitive price, short delivery time.
7     Good quality material and advanced production equipment.
8     Efficient sales team and excellent customer service.
9     Our products have passed the CE and ISO Certificate


Principle of Single Acting Actuator (Spring Return)



CCW

Air to port A forces the pistons outwards, causing the springs to compress, The pinion turns counterclockwise while air is being exhausted from port B.

Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A.

CW

Air to port B forces the pistons outwards, causing the springs to compress, The pinion turns counterclockwise while air is being exhausted from port B.

Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A.



Principle of Double Acting Actuator

CCW

Air to Port A forces the pistons outwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port B.

Air to Port B forces the pistons inwards, causing the pinion to turn clockwise while the air is being exhausted from Port A.

CW

Air to Port A forces the pistons outwards, causing the pinion to turn clockwise while the air is being exhausted from Port B.

Air to Port B forces the pistons inwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port A.



VSF Series of spring return pneumatic torque table(SR5)     









Nm     














Model     Spring torque     Air torque
3BAR     4BAR     5BAR     6BAR
SST     SRT     SET     AST     ART     AET     AST     ART     AET     AST     ART     AET     AST     ART     AET
VSF14-200SR5     789     402     506     320     110     47     597     276     324     877     456     594     1151     609     878
VSF14-250 SR5     1345     670     815     490     150     12     917     412     448     1347     671     818     1798     935     1320
VSF14-300 SR5     1880     957     1206     707     230     62     1337     609     692     1908     975     1235     2598     1365     1953
VSF16-250 SR5     1553     795     1011     616     207     75     1159     533     617     1692     881     1150     2245     1184     1703
VSF16-300 SR5     2421     1202     1455     840     273     70     1626     744     855     2438     1213     1472     3197     1687     2426
VSF16-350 SR5     3194     1637     2085     1093     297     0     2166     941     971     3215     1744     2106     4312     2228     3116
VSF25-350 SR5     3960     2013     2534     1406     380     0     2689     1149     1143     3826     2044     2400     5255     2689     3709
VSF25-400 SR5     4955     2466     2999     2149     774     430     3829     1782     2110     5309     2685     3352     7190     3798     5471
VSF25-450 SR5     6326     3117     3726     2621     919     442     4752     2197     2573     6788     3402     4188     9013     4754     6834
VSF30-450 SR5     7929     3968     4869     2859     719     0     5455     2277     2134     7892     4001     4922     10649     5393     7327
VSF30-500 SR5     9375     4712     5824     3935     1255     248     7147     3182     3459     10042     5125     6490     13571     7036     9883
VSF30-550 SR5     11426     5741     7092     4414     1940     0     8306     3651     3863     12106     6162     7772     16090     8321     11647
VSF35-550 SR5     14449     7241     8907     5814     2062     1062     10750     5025     5999     15527     7909     9984     20624     10949     15873
VSF35-600 SR5     18185     8971     10752     6823     2296     833     12707     5827     6718     18327     9058     10894     24477     12889     18487
VSF35-700 SR5     23864     11772     14109     10627     4056     2896     18654     8873     10923     25470     12767     15715     34710     18506     26979
VSF40-600 SR5     21426     10879     13666     7637     2061     0     14745     6326     6342     21644     11014     13884     28961     14856     20558
VSF40-700 SR5     30015     15120     18757     10364     2839     0     20074     8665     8811     29304     14679     18046     39495     20318     28232
VSF40-800 SR5     35425     17702     21679     16204     5648     2623     28917     13276     15336     41095     21218     27349     54343     28532     40763
VSF48-800 SR5     45789     23214     29097     16866     4879     0     31836     13842     14336     44755     22574     28063     61685     31770     44215
VSF48-900 SR5     57348     28690     35200     22906     6959     291     41849     18324     19233     58269     29261     36121     79735     41056     57120
VSF48-1000 SR5     69602     34789     42618     25938     8152     1236     49356     22203     24653     72776     36756     45792     96191     50304     71488
VSF60-800 SR5     63398     31515     38261     23891     7319     505     43980     19372     20595     61439     30300     36302     84160     43480     60774
VSF60-900 SR5     78878     39710     49217     26840     8658     2020     52335     23954     27514     76967     38524     47305     103324     54548     78503
VSF60-1000 SR5     95891     47761     58177     39480     13860     6721     71015     32781     38256     97605     48824     59891     134084     70623     101326
VSF60-1100 SR5     112369     57081     71764     42517     12632     0     80728     35559     37801     116733     59787     76127     157151     81412     114224
VSF60-1000X2 SR5     170261     84792     112378