Valtek Flow Boosters.pdf

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Valtek Flow BoosterStroking Times4Table I: Stroking Times With and Without Boosters (1)Actuator StrokeWithout Boosters With BoostersSize (inches) Total Time Total Time Total Time Total Time(sq. in.) To Open To Close To Open To Close50 1 2.7 1.5 .3 .1( 1 /4-inch tubing) (2) 2 3.7 2.6 .3 .23 4.6 3.6 .4 .32 9.2 5.6 .6 .43 11.1 7.7 .8 .54 12.8 9.6 1.0 .7100 6 15.8 13.0 1.2 .9( 1 /4-inch tubing) (2) 8 18.6 16.2 1.4 1.110 21.2 19.5 1.5 1.412 23.6 22.8 1.7 1.618 29.2 28.9 2.1 2.124 32.3 32.1 2.4 2.32 15.2 11.2 1.0 .83 18.9 15.2 1.4 1.14 22.3 18.8 1.7 1.3200 6 28.5 25.1 2.1 1.8( 3 /8-inch tubing) (2) 8 34.3 30.9 2.6 2.310 39.9 36.8 3.0 2.712 45.1 42.6 3.4 3.218 60.0 58.4 4.6 4.524 68.9 68.1 5.3 5.23 26.9 22.9 2.1 1.84 31.9 28.3 2.5 2.36 41.3 37.6 3.3 3.0300 8 50.1 46.1 4.1 3.7( 3 /8-inch tubing) (2) 10 58.5 54.4 4.8 4.412 66.6 62.8 5.6 5.218 89.3 85.9 7.7 7.224 103.1 99.9 9.1 8.6NOTE: Data is based on tests with boosters connected to the top and bottom ports of a spring cylinder actuator with a fail-close, standard springand Beta positioner with I/P module, calibrated at 4-20 mA; 80 psi supply air to positioner and boosters.NOTE: Divide stroking times by two when using two boosters on each cylinder port and 3 /4-inch NPT supply air pipes.(1) Times are in seconds, are estimated and will vary slightly with different packing sets, plug, seals, failure modes, etc.(2) Listed tubing size is from positioner to actuator on systems without boosters, or to booster input signal on systems with boosters.All supply air tubing to boosters is 3 /4-inch.Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611
Valtek Flow BoosterSpecifications, DimensionsInput signal rangeSupply pressureAmbient temperaturelimitsSupply airtemperature limitsNominal dead bandConnectionsTable II: SpecificationsMaximum: 150 psig / 11 bargUp to 150 psi(check actuator rating)-40 to 165 O F-40 to 74 O C-40 to 165 O F-40 to 74 O C5.5 percent of inputsignal spanSignal - 1 /4-inch NPT;Supply - 3 /4-inch NPT;Output - 3 /4-inch NPTMaximum C VSupply - 5.0;Exhaust - 3.0Net WeightApproximately 4.9 lbsTable III:Standard Material of ConstructionComponentBodyEnd plugDiaphragmassemblyPoppetNeedle valveSpringsSpring capBolts, nutsMaterialAnodized aluminumNickel plated brass(electroless)Anodized aluminum andBuna-N/nylon diaphragmsStainless steel andpolyurethaneStainless steelStainless steelStainless steelStainless steel* Booster does not regulate the air. Actuators that use unregulatedair must be rated to at least the above pressures, or airmust be regulated to actuator rating.BypassValve3.49.941/4-inch NPTInput Signal Port3.533/4-inch NPTOutput Actuator Port1.383/4-inch NPTInput Supply Port2.635.25Figure 3: Dimensions (inches)Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 86115
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