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Related Manuals for Wanner Engineering Hydra-Cell H-25-SD
Summary of Contents for Wanner Engineering Hydra-Cell H-25-SD
- Page 1 INSTALLATION & SERVICE H25-991-2406A H-25-SD, G-25-SD SLURRY DUTY PUMPS W0193A WANNER ENGINEERING, INC. 1204 Chestnut Avenue, Minneapolis, MN 55403 TEL: (612) 332- 5681 FA X: (612) 332- 6937 TOLL-FREE FAX [US only]: (800) 332-6812 www.hydra-cell.com email: sales@wannereng.com...
- Page 2 H/G-25-SD Contents Page Specifications................ Dimensions................3 Installation................4 Maintenance................8 Service.(Fluid.End)..............9 Service.(Hydraulic.End)............15 Troubleshooting..............18 H/G-25-SD Specifications Calculating Required Maximum Capacity. rpm. gpm. I/min. Horsepower (kW)* . H/G-5-X-SD. 1050. 0.0. . H/G-5-E-SD. 1150. 0.. Delivery @ Max Pressure. gpm.x.psi 50.x.rpm =..
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Page 3: Net Positive Suction Head
H/G-25-SD Specifications Performance Net Positive Suction Head – NPSHr 1000 1200 24.0 88.0 84.0 22.0 H/G-25-X-SD 80.0 H/G-25-E-SD 20.0 76.0 H/G-25-X-SD 72.0 300 PSI (21 bar) 18.0 68.0 H/G-25-E-SD 64.0 16.0 60.0 56.0 14.0 52.0 48.0 12.0 44.0 40.0 10.0 36.0 32.0 28.0... -
Page 4: Important Precautions
H/G-25-SD Installation Location Important Precautions Locate.the.pump.as.close.to.the.supply.source.as.possible. Adequate Fluid Supply.. To. avoid. cavitation. and. Install.it.in.a.lighted.clean.space.where.it.will.be.easy.to.inspect. premature.pump.failure,.be.sure.that.the.pump.will.have. and.maintain..Allow.room.for.checking.the.oil.level,.changing. an.adequate.fluid.supply.and.that.the.inlet.line.will.not.be. the.oil,.and.removing.the.manifold.support.(43),.manifold.(7),. obstructed...See.“Inlet.Piping”. and.valve.plate.(18). Positive Displacement..This.is.a.positive-displacement. pump..To.avoid.severe.system.damage.if.the.discharge.line. ever.becomes.blocked,.install.a.relief.valve.downstream. Mounting from.the.pump..See.“Discharge.Piping”. Safety Guards.. Install. adequate. safety. guards. over. The.pump.shaft.can.be.rotated.in.either.direction. all. pulleys,. belts,. and. couplings.. Follow. all. codes. and. To.prevent.vibration,.securely.attach.the.pump.and.motor.to.a. - Page 5 H/G-25-SD Installation Inlet Piping (Suction Feed) Hose Size and Routing Size. the. suction. line. at. least. one. size. larger. than. the. pump. Caution: Do not pump at fluid temperatures above 140° F inlet,.and.so.that.the.velocity.will.not.exceed.1.to.3.ft/sec.(0.3. (60° C). Consult the Pump Specifications Manual for current to.0.9.m/sec): ratings, based on the pump head material.
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Page 6: Discharge Piping
H/G-25-SD Installation Inlet Calculations Minimizing Acceleration Head and Frictional Losses To.minimize.the.acceleration.head.and.frictional.losses: Acceleration Head •.Keep.inlet.lines.less.than.3.ft.(1.m).long Calculating the Acceleration Head •.Use.at.least.1-1/.in..(38.mm).I.D..inlet.hose •. Use. soft. hose. (low-pressure. hose,. noncollapsing). for. the. Use.the.following.formula.to.calculate.acceleration.head.losses.. inlet.lines Subtract.this.figure.from.the.NPSHa,.and.compare.the.result.to. the.NPSHr.of.the.Hydra-Cell.pump. •.Minimize.fittings.(elbows,.valves,.tees,.etc.) • Use a suction stabilizer on the inlet. Ha.=.(L.x.V.x.N.x.C).÷.(K.x.G) where: Net Positive Suction Head... -
Page 7: Before Initial Start-Up
H/G-25-SD Installation Before Initial Start-Up The.smallest.permissible.discharge.hose.size.is: 1.to.10.gpm..........11/16.(0.687).in..I.D. Before.you.start.the.pump,.be.sure.that: 11.to.0.gpm..............1.in..I.D. •.. All.shut-off.valves.are.open,.and.the.pump.has.an.adequate. 1.to.38.liters/min............17.mm.I.D. supply.of.fluid. 39.to.76.liters/min.............5.mm.I.D. •.. All.connections.are.tight. •.. The.oil.level.is.approximately.1.in..(.5.cm).from.the.top.of. Use.flexible.hose.between.the.pump.and.hard.piping,.to.absorb. the.fill.port.—.so.that.the.floor.of.the.upper.reservoir.within. vibration,.expansion,.or.contraction. the.pump.housing.is.flooded.and.the.chamber.itself.is.about. Never.install.a.shutoff.valve.in.the.discharge.line.between.the. 1/4.full,.allowing.for.oil.expansion.as.the.pump.runs.and.heats. pump.and.the.regulator,.or.in.the.bypass.line. Select.pipe.or.hose.with.a.working.pressure.rating.of.at.least. •.. The.relief.valve.on.the.outlet.of.the.pump.is.adjusted.so.the. 1.5.times.the.maximum.system.pressure..Example:.Select.a. pump.starts.under.minimum.pressure. - Page 8 H/G-25-SD Maintenance Shutdown Procedure During NOTE: The numbers in parentheses are the Ref. Nos. on the illustrations in the Parts Manual. Freezing Temperatures Take all safety precautions to assure safe handling of the Daily fluid being pumped. Provide adequate catch basins for fluid drainage and use appropriate plumbing from drain Check.
- Page 9 Caution: Do not disassemble the hydraulic end unless you are a skilled mechanic. For assistance, contact Wanner Engineering (Tel 612-332-5681 or Fax 612-332-6937) or the distributor in your area. Caution: The four capscrews (26) that screw through the back of the housing into the cylinder casting hold the casting over the hydraulic end of the pump.
- Page 10 H/G-25-SD Service (Fluid End) Service Procedure 2. Remove and Inspect Valve Assemblies (3, 11-17, 44-47) 1. Remove Manifold Support Note: Wanner Repair Kits contain some or all of the required (43), Manifold (7), and Valve components to replace items (3), (11-17), and (44-47), as well as all O-rings for sealing the manifold to the valve plate.
- Page 11 H/G-25-SD Service (Fluid End) Inspect the Valve Components a...Inlet (3 center valves)..From.the.large.hole.at.the.bottom. of.the.diaphragm.pocket.in.the.valve.plate,.press.down.on. Inspect.the.individual.components.of.each.valve.as.follows: the.spring.retainer.(16).until.the.valve.seat,.valve,.and.spring. a...Check.the.spring.retainer.(16).that.is.housed.inside.the.shell. fall.out.of.the.bore. (45)..Be.sure.to.locate.the.polyurethane.washer.(17).that.sits. Press.and.tap.down.as.required,.working.your.way.around. in.the.spring.retainer.recess.and.supports.the.spring.(14)..If. the.edge.of.the.spacer.to.force.the.shell.subassembly,.crush. the.spring.retainer.is.worn.in.the.area.of.the.four.tabs.that. seal,.and.spacer.evenly.out.of.the.valve.bore. guide.and.act.as.a.stop.for.the.valve,.replace.it. b... Outlet (3 outer valves)..From.the.small.hole.at.the.bottom. Also.look.for.wear.in.the.area.of.the.recess.that.supports. of.the.diaphragm.pocket.in.the.valve.plate,.and.through.the. the.spring..The.polyurethane.washer.should.have.minimized. valve.seat.bore,.press.down.evenly.on.the.valve.(13).until.it. or.prevented.wear.in.this.area.if.it.stayed.in.place.during. stops.against.the.spring.retainer. operation. Continue.pressing.or.tapping,.as.required,.until.the.spacer,. Press.out.the.old.spring.retainer.and.push.in.a.new.one.if. crush.seal,.shell.subassembly,.spring,.and.valve.fall.out.of. required..It.is.always.a.good.idea.to.use.a.new.polyurethane. the.valve.bore.
- Page 12 H/G-25-SD Service (Fluid End) Reinstall the Valve Assemblies Next,.insert.the.remaining.crush.seals.(46).onto.the.nose. of.the.inlet.valve.spacers..The seals must fit around the a...Clean.the.valve.ports.and.shoulders.in.the.valve.plate.(18). nose of the spacers. with.water.or.a.compatible.solvent..A.ScotchBrite™.pad.or. Insert.the.three-piece.shell.subassemblies.(45,.16,.17).into. brush.may.be.used.to.abrade.any.old.buildup.or.residue,. the. inlet. valve. bores.. They. too. may. have. to. be. pressed. but.be.careful.not.to.scratch.the.plastic.or.wear.away.any.of. slightly,. as. there. is. a. line-to-line. fit. between. the. outer. the.plastic.valve.plate.material..Rinse.the.valve.plate.after.
- Page 13 H/G-25-SD Service (Fluid End) 3. Inspect and Replace 4. Flush Contaminant from Diaphragms (22) Hydraulic End (only if a diaphragm has ruptured) a...Lift. one. of. the. diaphragms. by. one. edge,. and. turn. the. pump.shaft.until.the.diaphragm.pulls.up..This.will.expose. a...Remove. the. oil. drain. cap. (34). and. allow. all. oil. and. machined.cross-holes.in.the.valve.plunger.shaft.behind.the.
- Page 14 H/G-25-SD Service (Fluid End) Method #1 (system head pressure less than 2 Method #2 (head pressure greater than 2 psi) psi) This. simple. and. clean. method. of. priming. the. Hydra-cells. requires.an.inlet.head.pressure.of.at.least.5.feet.(1.5.m).or..psi. a.. Install. the. valve. plate. (16). but. without. the. outlet. valves. (.14.bar)..The.pressure.source.is.required.to.hold.the.diaphragms.
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Page 15: Tools And Supplies
H/G-25-SD Service (Hydraulic End) W0197A Tools and Supplies The numbers in parentheses are the Reference Numbers on the exploded view illustrations found in this manual and The. following. supplies. are. recommended. for. servicing. the. also in the Parts Manual. hydraulic.end.of.the.pump: Caution: Do not disassemble the hydraulic end unless you •.. - Page 16 H/G-25-SD Service (Hydraulic End) 1. Remove Pump Housing 4. Reassemble Pump Housing, Shaft Assembly, and Cylinder a...Remove. the. head. of. the. pump,. and. the. diaphragms,. as. outlined.in.the.Fluid.End.Service.Section. Casting b... Drain.the.oil.from.the.pump.housing.by.removing.the.drain. plug.(34)..Dispose.of.the.oil.properly. Note: Inspect the shaft seals (64) before continuing. If they c...
- Page 17 H/G-25-SD Service (Hydraulic End) 7. Install Plungers i... After.all.three.nuts.(31).are.tightened,.insert.a.capscrew.(6),. with.washer.(6),.into.the.unused.threaded.hole.in.the.cylinder. Note: If the plungers (23) have been removed from the casting..Then.remove.the.assembly.stud,.washer,.and.nut. valve plungers (54), do not reuse them. Install new ones that.are.opposite.the.capscrew.just.added,.and.replace.them. instead. with.another.capscrew.and.washer..Finally,.remove.the.other. two.assembly.studs,.which.should.be.on.opposite.sides.of. a...Rotate.the.pump.shaft.so.the.piston.is.in.the.top-dead-center. the.pump.housing.from.each.other,.and.replace.them.with. position. capscrews.and.washers..Torque.the.capscrews.to.5.ft-lbs. b... With.the.nut.turned.back.toward.the.hex.head.of.the.plunger. (34.N-m).
- Page 18 H/G-25-SD Troubleshooting Cavitation Pump Runs Rough •. Inadequate.fluid.supply.because: •. Worn.pump.valves —.Inlet.line.collapsed.or.clogged •. Airlock.in.outlet.system —.Clogged.line.strainer •. Oil.level.low —.Inlet.line.too.small.or.too.long •. Wrong.weight.of.oil.for.cold.operating.temperatures.(change. to.lighter.weight) —.Air.leak.in.inlet.line •. Cavitation —.Worn.or.damaged.inlet.hose •. Air.in.suction.line —.Suction.line.too.long •. Restriction.in.inlet/suction.line —.Too.many.valves.and.elbows.in.inlet.line •. Hydraulic.cells.not.primed.after.changing.diaphragm •. Fluid.too.hot.for.inlet.suction.piping.system. •. Foreign.material.in.inlet.or.outlet.valve •. Air.entrained.in.fluid.piping.system. •. Damaged.diaphragm •.
- Page 19 H/G-25-SD Troubleshooting Valve Wear •. Normal.wear •. Cavitation •. Abrasives.in.the.fluid •. Valve.incompatible.with.corrosives.in.the.fluid •. Pump.running.too.fast •. Washer. (44). missing. or. dislodged. from. position. between. spring.and.valve Loss of Oil •. External.seepage •. Rupture.of.diaphragm •. Frozen.pump •. Diaphragm.screw.O-ring.(0).missing.or.cracked •. Worn.shaft.seal •. Oil.drain.piping.or.fill.cap.loose •. Valve.plate.and.manifold.bolts.loose Premature Failure of Valve Spring or Retainer •.
- Page 20 Every. form. of. liability. for. direct,. special,. incidental. or. consequential. damages. or. loss. is. expressly. excluded. and.denied. WANNER ENGINEERING, INC. 1204 Chestnut Avenue, Minneapolis, MN 55403 TEL: (612) 332- 5681 FA X: (612) 332- 6937 TOLL-FREE FAX [US only]: (800) 332-6812 www.hydra-cell.com...
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