Installation and Maintenance Instructions for …

1 Morin MRP pneumatic rack and pinion ActuatorsInstallation and Maintenance InstructionsTyco reserves the right to change the contents without noticeMORMC-0036-US-1106 Installation and Maintenance Instructions forMorin MRP pneumatic rack and pinion ActuatorsIntroductionThe Morin MRP pneumatic actuator is a compact, rack & pinion design, conforming to Keystonestandard or direct mount standards or EN ISO 5211 mounting configuration, depending on thedrive adaptor pneumatic Systems RecommendationsAll Morin MRP Actuators are factory lubricated with Molyrace LT2, which is a molybdenumdisulfide (MoS2) grease and, unless the operating environment is extremely harsh, do notrequire re-lubrication.

2 For applications where the environmental temperature is between -22 F to-40 F, AeroShell Grease 7 is specified. To maintain maximum efficiency with this, or otherpneumatic actuators, we advise that the following basic system recommendations are followed:1. Where air pipelines are subjected to extremes of temperature, the system should be fittedwith suitable air drying When working at low temperatures, it is important that the compressed air has been dried toa dew point of less than the ambient temperature. If this is not the case, water will becondensed from the compressed air and freeze causing damage to the seals inside Air control lines should be fitted in accordance with a Recommended Piping Practice andshould not have loops, which may trap All air connection pipe ends should be thoroughly cleaned and deburred after cutting, toensure that the pipeline is clear of If pipelines are hydraulically tested, then the lines should be blown down with pressurizedair to clear all traces of water, prior to connecting lines to the Where pipe fitting sealants are used, they should be applied to the male threads only.

3 To avoidexcess compound being forced into the actuator control Where Air Filter Equipment is used, the air filters should be situated in positions that alloweasy access to maintain and/or Where pneumatic valve positioners, or pneumatic controllers are fitted to valve actuatorassemblies, oil mist lubricated air should not be used unless the manufacturer statesspecifically that the controllers are compatible with lubricated :MRP actuators are rated for air pressure in the range 40psig to 120psig and willwithstand a maximum of actuators are designed to be mounted to quarter turn valves either directly or using thecorrect mounting brackets/adaptors and sizing models are of the opposed piston type.

4 Each piston incorporates an integral rack whichengages with a one piece drive pinion shaft. The drive shaft is Nitrotech(TM)treated for maximumprotection and fitted with engineered polymer bearings. The actuator body is of extrudedaluminum, hard anodized and electrostatic powder coated. The design features bolt on mounting plate and air connection plate for maximum are used for piston and shaft Spring Return actuators, up to four springs per piston can be fitted between the piston headand end cap to suit the available operating air pressure, up to 80 psig with boosters to travel stops are provided for each end of travel to ensure that the actuator will openand close the valve output drive can be either a keyed bore or female square (star)

5 Conforming to EN ISO Instructions refer to all the range,except size Installation & Maintenanceinstructions relating to size 180, pleaserefer to document MRP pneumatic rack and pinion ActuatorsInstallation and Maintenance InstructionsTyco reserves the right to change the contents without noticepage 2 Standard Installation - Double & Single Acting UnitsThese Instructions assume that the actuators are installed with the cylinder axis parallel to the axis ofthe valve bore (In Line).Single acting actuators are supplied as FAIL-CLOSE units as acting, (FAIL-OPEN), must be specified at the time of Ensure that the valve and actuator are in the following corresponding positions: Double Acting units and Spring Return units, (Fail-closed):Valve closed, actuator fully clockwise.

6 Double Acting units and Spring Return units, (Fail-open):Valve open, actuator fully counter-clockwiseMounting to valves (via bracket)2a. Secure the mounting bracket to the underside of the actuator , using four bolts and washers, asshown in Fig 13a. Install the appropriate coupling onto the valve stem. The coupling should be lightly tapped orpressed onto the valve stem. The use of a lubricant is Mount the actuator and bracket onto the valve top flange using the appropriate to valves 2b. Screw the actuator mounting studs tightly into the actuator base Push the adaptor, if required, into the actuator drive bore, using the keyway which aligns theadaptor drive with the valve stem Mount the actuator onto the valve top flange and secure using a lockwasher and nut on eachmounting to valves (with EN ISO 5211 mounting)2c.

7 Screw the actuator mounting studs tightly into the actuator base Mount the actuator onto the valve top flange and secure using a lockwasher and nut on eachmounting 1/4 turn valve types5. Before installing the valve/ actuator assembly in a piping system, the valve operation should beverified and adjusted, if necessary, using the travel stop screws (see detailed Instructions for travelsetting)6. When installing the valve/ actuator assembly into pipeline, ensure that the specific instructionsrelating to the valve Installation are followed. Note:Some valves may require to be fitted into the pipeline prior to mounting the actuator . Fail Safe butterfly valves are an example of Standard Installation - Double & Single Acting UnitsAll 1/4 turn valve typesIn circumstances where the actuator is required to be installed in the transverse position at rightangles to the valve bore (Across Line), the actuator must be rotated through 90.

8 This is achieved in the following manner:1. For direct mounted versions, fit the drive adaptor into the second keyway of the drive pinion to alignthe adaptor drive with the valve stem drive when the actuator is transverse to the Remove the actuator from the valve or the bracket by removing the 4 fixing bolts/nuts and withdrawit vertically from the Rotate the actuator through 90 . 4. For bracket mounting the actuator can de mounted transversely and the coupling will locate in theactuator drive shaft using the second keywayFigure 1 Typical Installation on ball or high performancebutterfly valves, using bracket 2 Typical Installation on resilient seated requiredBracketif requiredActuatorMorin MRP pneumatic rack and pinion ActuatorsInstallation and Maintenance Instructions - Parts IdentificationTyco reserves the right to change the contents without noticepage 3 Materials of constructionNoItemMaterialFinishUS material stdDIN / BS Material std1 BodyExtruded aluminumASTM B221BS 1474 6000 T5/6 Hard Anodize + ESPC* or SNP**2 End CapDie cast aluminumASTM B85 DIN 1725-231 Chromate + ESPC* or SNP**3 PistonDie cast aluminumASTM B85 DIN 1725-231 Anodize or SNP**4 pinion shaftCarbon steelASTM A108BS 970.

9 1983 212A42 Nitrotech ** or SNP**5 Base plateDie cast aluminumASTM B85 DIN 1725-231 Chromate + ESPC* or SNP**6 Air connection plateDie cast aluminumASTM B85 DIN 1725-231 Chromate + ESPC* or SNP**7 Piston backing padDevlon-V Natural8 Piston support ringDevlon-V Natural9 Top bearingDevlon-V Natural10 Bottom bearingDevlon-V Natural11 Top spacerDevlon-V Natural12 Bottom spacerDevlon-V Natural13 Stop bolt304 Stainless steelASTM A193BS 3692-A2-304 Natural14 Lock nut304 Stainless steelASTM A193BS 3692-A2-304 Natural15 Sealing washer304 Stainless steelASTM A193BS 4320-A2-304 Natural16 End cap bolt304 Stainless steelASTM A193BS 3692-A2-304 Natural17 End cap washer304 Stainless steelASTM A193BS 4320-A2-304 Natural18 Base plate bolt304 Stainless steelASTM A193BS 3692-A2-304 Natural19 Base plate washer304 Stainless steelASTM A193BS 4320-A2-304 Natural20 Air connection plate bolt304 Stainless steelASTM A193BS 3692-A2-304 Natural21 Air connection plate washer304 Stainless steelASTM A193BS 4320-A2-304 Natural22 SpringSpring steelASTM A877BS 2806 685 A55 HDR3 Oil Dip23 IndicatorABSN atural24 Piston O-ringRubber-NBR or FPMN atural25 End cap O-ringRubber-NBR or FPMN atural26 Shaft top O ringRubber-NBR or FPMN atural27 Shaft bottom O-ringRubber-NBR or FPMN atural28 Base plate

10 O-ringRubber-NBR or FPMN atural29 Air connection plate O-ringRubber-NBR or FPMN atural1217162524911121018195282726462021 131415297322238 Notes* ESPC= Electrostatic Powder Coating** SNP= Special Nickel Protection finish**NitrotechTM= Proprietary corrosion resistant finishMorin MRP pneumatic rack and pinion ActuatorsInstallation and Maintenance InstructionsTyco reserves the right to change the contents without noticepage 4 Disassembly procedureCAUTION! Remove air pressure and observe normal safety precautions, including the use ofeye indicator pointer (23) or NAMUR top adaptor (not shown).2. Remove travel stop bolts, (13) after loosening the lock Remove end caps (2) by unscrewing the four hexagon head bolts on each end cap.