Samson 3271 Mounting And Operating Instructions

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Samson 3271 Mounting And Operating Instructions Manual pdf 51 page image

EB 8052 EN 9-7Servicing9.4.1 Replacing the gasketRisk of control valve damage due to incor-rect servicing.Î The gasket can only be replaced whenall the following conditions are met:− The valve size is ≤NPS 4.− The valve does not have a balancedplug.− The valve does not have a flow divid-er.Î To replace the gasket in other valve ver-sions, contact our after-sales service.a) Standard version1. Undo the body nuts (14) gradually in acrisscross pattern.2. Lift the flange (2) and plug with plugstem (5) off the body (1).3. Remove the gasket (17). Carefully cleanthe sealing faces in the valve body (1)and on the flange (2).4. Insert a new gasket (17) into the body.5. Place the flange (2) onto the body.Version with V-port plug: place theflange (2) onto the valve body, makingsure that the largest V-shaped port of theV-port plug faces toward the valve outlet.See the 'Mounting the actuator onto thevalve' section.6. Firmly press the plug (5) into the seat (4).Fasten down the flange (2) with the bodynuts (14). Tighten the nuts gradually in acrisscross pattern. Observe tighteningtorques.b) Version with insulating sec-tion or bellows seal1. Undo the body nuts (14) gradually in acrisscross pattern.2. Lift the insulating section (21) and plugwith plug stem (5) off the body (1).3. Remove the gasket (17). Carefully cleanthe sealing faces in the valve body (1)and on the insulating section (21).4. Insert a new gasket (17) into the body.5. Place the insulating section (21) onto thebody.Version with V-port plug: place the insu-lating section (21) onto the valve body,making sure that the largest V-shapedport of the V-port plug faces toward thevalve outlet. See the 'Mounting the actu-ator onto the valve' section.6. Firmly press the plug (5) into the seat (4).Fasten down the insulating section (21)with the body nuts (14). Tighten the nutsgradually in a crisscross pattern. Ob-serve tightening torques.9.4.2 Replacing the packingRisk of control valve damage due to incor-rect servicing.Î The packing can only be replaced whenall the following conditions are met:− The valve size is ≤NPS 4.NOTICE!NOTICE!