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Denison Hydraulics P140 A-mod, Информация о сервисе

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Denison Hydraulics P140 A-mod Скачать руководство пользователя страница 13

5. Adjust amperage (150 to 200 mA)  to give 34,5 bar reading on the proportional
valve gage port. Back out zero screw (24)  and adjust screw (9) until output flow is at
zero stroke position. Lock both adjustments in place.

6. Increase amperage to 390 mA. Pump should go to full stroke. Set  max. volume
screw on opposide control cap for full stroke. Gage in proportional valve gage port
should read approximately 18,6 bar.

7.

If pump fails to go towards full stroke, or fails to go towards zero stroke, differential

pressure may be improperly adjusted. Re-adjust the screw (15 figure 6)  out to go
towards full or in to go towards zero flow.

8. Increase and decrease the amperage between 0 and 390 mA several times at
approximately 34,5 bar, 207 bar and 414 bar system pressure. Pump stroke should fol-
low amperage smoothly and proportionally. Full to zero or zero to full stroke should be
achieved in .5 second. Adjust amperage up to 275 mA from zero stroke, then adjust
down from full stroke to 275 mA. The flows at the two 275 mA settings shall not vary
more than 18.9  l/m from each other.

ELECTRIC STROKER

13

FIGURE 6

SERVO CAP

102 Nm

48

41 42

43

LOCTITE

®

 271

46

37

36

49

50

40

35

46

LOCTITE

®

 271

44

45

102 Nm

FIGURE 5

ELECTRIC STROKER

www.comoso.com

Содержание P140 A-mod

Страница 1: ...DENISON HYDRAULICS open loop pump controls series P140 A mod P260 B mod service information Publ S1 AM024 A replaces S1 AM024 01 97 www comoso com ...

Страница 2: ...stroker parts list hydraulic stroker disassembly assembly test figure 11 parts list hydraulic stroker torque limiter parts list torque limiter disassembly assembly figure 12 torque limiter figure 13 torque limiter cap parts lists for figure 12 and figure 13 torque limiter test and adjustment rotary servo parts list rotary servo disassembly assembly test figure 14 parts list rotary servo load sensi...

Страница 3: ...ency mating connector Din 43650 type AF part no 167 10008 8 provided electric stroker nominal coil resistance 24v coil electric stroker nominal coil resistance 12v coil handwheel turns full to zero stroke torque to turn handwheel 70 bar torque to turn handwheel 500 bar torque to turn rotary servo shaft port C1 C2 cylinder gage ports port E electric stroker control pressure inlet port H hydraulic s...

Страница 4: ... pump displacement are controlled by the for mula P V K As pressure increases displacement must reduce and vice versa A link age to the pump control cylinder slides a spool over a pin The spool and pin act as a metering valve The pin contains a cross drilled hole and a connecting drilling to one end This pin passes through a bore in the torque limiter housing connecting to the vent port of the com...

Страница 5: ...lve Poor control of flow Differential adjustment Differential set too low Torque Limiter Torque Limiter Override Torque setting erratic Torque limiter cap malfunction Sticking pin Torque incorrect at high flows Incorrect torque setting Outer adjustment screw Torque incorrect at low flows Incorrect torque setting Inner adjustment screw Too much torque variation Wrong torque limiter for range Replac...

Страница 6: ... 1 3 Buck Up Cap Fig 4 S22 12970 1 1 4 Screw H H C M12 x 60 mm 363 12210 8 6 5 Screw H H C M12 x 80 mm 363 12225 2 6 Control Piston 032 91443 1 1 7 O Ring 90 S 1 ARP 013 691 00013 2 2 8 O Ring 70 S 1 ARP 152 671 00152 2 2 9 Piston Ring 032 91261 2 2 CCW ROTATION CW ROTATION C10 C20 PRESSURE COMPENSATOR parts list 6 7 8 9 PRESSURE COMPENSATOR ITEMS NOT SHOWN www comoso com ...

Страница 7: ... 6 5 Seat 10 rotates and pivots on ball 8 and is retained by pressing two balls 9 into screw 2 Replace assembly if damaged ASSEMBLY 1 Install ball 8 and seat 10 in screw 2 2 Press balls 9 into screw 2 to retain seat 3 Install O ring 6 on screw 2 Lubricate O ring and slide screw into bracket 1 Install remaining parts 4 Turn handwheel clockwise into cap till the screw contacts the control piston 5 I...

Страница 8: ...ith the control piston 1 Install gages on system pressure and on compensator vent ports 2 Turn compensator adjustment screw 25 CCW until there is no contact with spring then adjust 1 2 turn CW after contact is made with spring 3 Turn differential adjustment screw 3 CCW until there is no contact with spring then adjust 1 2 turn CW after contact is made with spring 4 System relief valve should be se...

Страница 9: ...288 1 9 Avseal Plug 447 00026 2 10 Seat 036 11692 1 11 Spring 033 71086 1 13 O Ring 90 S 1 ARP 910 691 00910 1 14 O Ring 90 S 1 ARP 017 691 00017 1 15 Plug 031 57368 1 16 Seal Piston 032 91305 1 17 Nut Acorn 5 16 24 327 25006 1 18 Spool 032 59482 1 19 Orifice Plug 033 25528 1 21 Plug BSPP 3 8 447 00032 1 25 Soc Setscrew 5 16 24 x 1 1 4 312 13180 1 26 Acorn Nut 036 33474 1 28 Plug BSPP 1 4 447 0100...

Страница 10: ...gs on interface between cap and pump control pad Install spring 2 into control piston Install cap assembly on pump housing as indicated on the applicable view guiding the control piston into the bore 3 Torque the assembly bolts to 102 Nm ITEM DESCRIPTION PART NO QTY 1 Pin 324 24048 1 2 Spring 032 91273 1 3 Snout 032 91344 1 4 Control Cap 032 91266 1 5 O Ring 90 S 1 ARP 916 691 00916 1 6 Plug 16 HP...

Страница 11: ...8 032 92190 1 1 1 1 8 Screw H H C M12 x 60 mm 363 12210 363 12210 6 4 4 6 9 Screw H H C M12 x 80 mm 363 12225 363 12225 2 4 4 2 10 Control Piston 032 91785 032 91785 1 1 1 1 11 O Ring 90 S 1 ARP 013 691 00013 691 00013 2 2 2 2 12 O Ring 70 S 1 ARP 152 671 00152 671 00152 2 2 2 2 13 Piston Ring 032 91261 032 91261 1 1 1 1 14 Piston Ring 032 91811 032 91811 1 1 1 1 Tubing assembly available as S22 1...

Страница 12: ...o the control piston and torque to 6 78 Nm 9 Install minimum stop screw 24 and turn clockwise to stroke pump to full volume Measure height from control cap to top of screw 3 With control piston at full stroke dimension must be 11 4 0 76 mm Back out minimum stop screw 24 till there is no contact with control piston 10 Press dowel 30 into body 16 through the link 28 to 6 35 mm below surface apply Lo...

Страница 13: ...be improperly adjusted Re adjust the screw 15 figure 6 out to go towards full or in to go towards zero flow 8 Increase and decrease the amperage between 0 and 390 mA several times at approximately 34 5 bar 207 bar and 414 bar system pressure Pump stroke should fol low amperage smoothly and proportionally Full to zero or zero to full stroke should be achieved in 5 second Adjust amperage up to 275 m...

Страница 14: ...0828 1 33 Ret Ring 356 30037 1 34 Washer 032 91517 1 35 O Ring 70 S 1 ARP 011 671 00011 2 36 Block 032 91509 1 38 Plug 7 16 20 449 00013 1 39 O Ring 90 S 1 ARP 908 691 00908 1 40 Orifice 635 mm 033 91225 2 41 Prop Pr Cont Valve 517 00085 1 42 Coil 24VDC 517 00086 1 43 Connector 167 01008 8 1 44 O Ring 90 S 1 ARP 904 691 00904 2 45 Plug SAE 4 488 35061 1 46 Screw SHC 10 32 x 1 4 312 09041 2 48 Plug...

Страница 15: ...1 See Figure 7 Remove cover 5 and Max volume screw 4 2 Remove 4 screws holding cap to pump 3 Remove cap assembly from pump 1 Install O rings on interface between cap and pump control pad Install cap on pump housing as indicated on the applicable view guiding the control piston into the bore 2 Torque the assembly bolts to 102 Nm 3 Install screw 4 in cap Install O ring 3 on nut 5 Install nut 5 on sc...

Страница 16: ...g and install cone 8 spring 7 and seal piston into bore in cap 1 being careful that cone enters seat 10 Install adj plug 2 screw 25 nut 4 and acorn nut 25 6 Install plug 12 and torque to 60 Nm Install plug 21 Torque to 35 Nm 7 Carefully install O ring 31 into the cap 8 Note proper location for cap Install O rings on interface between cap and pump control pad Install cap assembly on pump guiding th...

Страница 17: ... 15 Screw Primary Adjust 032 91446 1 1 16 Body assembly S22 15397 1 1 17 Outer Spring J Version 032 91440 1 Outer Spring K Version 032 91448 1 18 Inner Spring J Version 032 91441 1 Inner Spring K Version 032 91447 1 19 Spring Retainer 032 91819 1 1 21 Spool 032 91438 1 1 23 O ring 70 S 1 ARP 118 671 00118 2 2 25 Plug 12 HP5N S 488 35014 1 1 26 O Ring 90 S 1 ARP 912 691 00912 1 1 27 Sleeve 032 9143...

Страница 18: ...7 Nut Acorn 5 16 24 327 25006 1 18 Spool 032 91820 1 19 Cover 032 91761 1 20 Screw 1 2 20 x 2 1 2 312 35060 1 21 Plug 447 00032 1 23 Soc Setscrew 5 16 24 x 1 1 4 312 13180 1 24 O Ring 70 S 1 ARP 015 671 00015 1 25 Acorn Nut 036 33474 1 26 Plug 449 00599 1 27 Plug BSPP 1 4 447 01004 1 28 Plug BSPP 1 2 447 01008 1 29 Plug 488 35020 1 30 O Ring 90 S 1 ARP 905 691 00905 1 31 O Ring 70 S 1 ARP 008 671 ...

Страница 19: ...207 bar 414 bar and 500 bar At each condition increase the system pressure until the pump fully de strokes At no time should the system pressure vary more than 10 3 bar from the compensator setting The control should be steady and stable at all conditions 11 Reduce pressure to 10 3 bar below the compensator setting Pump should return to full stroke Repeat two or more times Compensator setting shou...

Страница 20: ...nt 1 Install gages on system pressure and on compensator vent ports 2 Turn compensator adjustment screw 23 CCW until there is no contact with spring then adjust 1 2 turn CW after contact is made with spring 3 Turn differential adjustment screw 3 CCW until there is no contact with spring then adjust 1 2 turn CW after contact is made with spring 4 Start prime mover with system relief valve set at 35...

Страница 21: ...7 691 00017 1 15 Plug 031 57368 1 16 Seal Piston 032 91305 1 17 Nut Acorn 5 16 24 327 25006 2 18 Spool 032 91820 1 19 Cover 032 91049 1 20 Screw 3 4 10 x 3 311 26320 1 21 Plug 447 00032 2 23 Soc Setscrew 5 16 24 x 1 1 4 312 13180 1 24 O ring 70 S 1 ARP 118 671 00118 1 25 Acorn Nut 036 33474 1 26 Plug 449 00599 1 27 Plug BSPP 1 4 447 01004 1 28 Plug BSPP 1 2 447 01008 1 29 Orifice 035 40489 1 ELECT...

Страница 22: ...535 1 Compensator Override Fig 10 S22 15531 S22 15531 1 3 O ring 90 S 1 ARP 113 691 00113 691 00113 2 2 2 2 4 Elbow 494 15019 494 15019 1 1 1 1 5 Elbow 494 15021 494 15021 1 1 1 1 6 450 Swivel Nut Ell 492 15389 492 15389 1 1 1 1 7 Tube 032 91888 032 92190 1 1 1 1 8 Screw H H C M12 x 60 mm 363 12210 363 12210 6 4 4 6 9 Screw H H C M12 x 80 mm 363 12225 363 12225 2 4 4 2 10 Control Piston 032 91785 ...

Страница 23: ...mension must be 11 4 0 76 mm Back out minimum stop screw 24 till there is no contact with control piston 10 Press dowel 30 into body 16 through the link 28 to 6 35 mm below surface Apply Loctite to threads of screws 40 and install over dowel 30 11 Press spool 21 into retainer 19 Caution do not use excessive force Place spool retainer assembly into spool 17 with spring 18 and washer 34 Secure with ...

Страница 24: ...21 Spool 032 91438 1 23 O Ring 70 S 1 ARP 118 671 00118 1 24 Soc Setscrew 3 4 10 x 3 311 26320 1 25 Plug 12 HP5N S 488 35014 1 26 O Ring 90 S 1 ARP 912 691 00912 1 27 Sleeve 032 91437 1 28 Arm assembly S22 15520 1 29 O Ring 70 S 1 ARP 035 671 00035 1 30 Dowel Pin 1 8 Dia x 1 75 Lg 324 20828 1 33 Ret Ring 356 30037 1 34 Washer 032 91517 1 35 O Ring 70 S 1 ARP 011 671 00011 2 36 Plate 032 91510 1 37...

Страница 25: ...iter Fig 12 S22 15316 1 1 3 Buck Up Cap Fig 4 S22 12970 1 1 1 1 4 Screw H H C M12 x 60 mm 363 12210 6 6 4 4 5 Screw H H C M12 x 80 mm 363 12225 2 2 4 4 6 Control Piston 032 91443 1 1 1 1 7 O Ring 90 S 1 ARP 013 691 00013 2 2 2 2 8 O Ring 70 S 1 ARP 152 671 00152 2 2 2 2 9 Piston ring 032 91261 2 2 2 2 TORQUE LIMITER PARTS LIST torque limiter CCW ROTATION CW ROTATION J10 K10 J20 K20 www comoso com ...

Страница 26: ...to 30 Nm 4 Install O ring 6 on seal piston 5 Lubricate O ring and Install cone 8 spring 7 and seal piston 5 into bore in cap 1 being careful that cone enters seat 10 Install adj plug 2 screw 25 nut 4 and acorn nut 26 5 Carefully install O ring 27 in the cap 6 Note proper location for control cap Install O rings on interface between cap and pump control pad Install cap guiding control piston into b...

Страница 27: ...E LIMITER ASSEMBLY 12 SYSTEM PRESSURE 1 2 BSPP TORQUE 60 Nm VENT CONN 3 8 BSPP 11 TORQUE 35 Nm DIFF ADJUST COMP ADJUST 27 102 Nm COMP ADJUST DIFF ADJUST 102 Nm LOCTITE 271 LOCTITE 271 SET PRESS AT FULL FLOW SET FLOW AT FULL PRESS LOCTITE 271 6 78 Nm www comoso com ...

Страница 28: ... 30 Dowel Pin 1 8 Dia x 1 75 Lg 324 20828 1 1 35 Screw SHC 10 32 x 1 4 Lg 312 09041 2 2 36 Nut 032 91645 1 1 45 O Ring 70 S 1 ARP 010 671 00010 1 1 ITEM DESCRIPTION PART NO QTY 1 Cap Sleeve Assembly S22 12922 1 2 Adj Plug 032 91814 1 3 Soc Setscrew 5 16 24 x 1 312 13160 1 4 Nut 5 16 24 335 13100 2 5 Seal Piston 031 59367 1 6 O Ring 90 S 1 ARP 012 691 00012 2 7 Spring 032 91798 1 8 Cone 036 12288 1...

Страница 29: ... bar 414 bar and 500 bar 11 At each condition increase the system pressure until the pump fully de strokes At no time should the system pressure vary more than 10 3 bar from the compensator set ting The control should be steady and stable at all conditions 12 Reduce pressure to 10 3 bar below the compensator setting Pump should return to full stroke Repeat two or more times Compensator setting sho...

Страница 30: ...Compensator Override Fig 10 S22 15531 S22 15531 1 3 O Ring 90 S 1 ARP 113 691 00113 691 00113 2 2 2 2 4 Elbow 494 15019 494 15019 1 1 1 1 5 Elbow 494 15021 494 15021 1 1 1 1 6 450 Swivel Nut Ell 492 15389 492 15389 1 1 1 1 7 Tube 032 91888 032 92190 1 1 1 1 8 Screw H H C M12 x 60 mm 363 12210 363 12210 6 4 4 6 9 Screw H H C M12 x 80 mm 363 12225 363 12225 2 4 4 2 10 Control Piston 032 91785 032 91...

Страница 31: ...imension must be 11 4 0 76 mm Back out minimum stop screw 24 till there is no contact with control piston 10 Press dowel 30 into body 16 through the link 28 to 1 4 in 6 35 mm below surface Apply Loctite to threads of screws 39 and install over dowel 30 11 Press spool 21 into retainer 19 Caution do not use excessive force 12 While sleeve 27 is engaged into dowel on link 28 slide above spool assembl...

Страница 32: ...ng 356 31050 1 18 O Ring 90 S 1 ARP 908 691 00908 1 19 Spring Retainer 032 91516 1 20 Nut 3 4 10 031 91049 1 21 Spool 032 91438 1 23 O Ring 70 S 1 ARP 118 671 00118 1 24 Soc Setscrew 3 4 10 x 3 311 26320 1 25 Plug 12 HP5N S 488 35014 1 26 O Ring 90 S 1 ARP 912 691 00912 1 27 Sleeve 032 91437 1 28 Arm assembly S22 15520 1 29 O Ring 70 S 1 ARP 035 671 00035 1 30 Dowel Pin 1 8 Dia x 1 75 Lg 324 20828...

Страница 33: ...15 1 2 Load Sensing Control Fig 15 S22 15537 1 1 3 Buck Up Cap Fig 4 S22 12970 1 1 4 Screw H H C M12 x 60 mm 363 12210 6 4 5 Screw H H C M12 x 80 mm 363 12225 2 6 Screw H H C M12 x 90 mm 363 12240 2 2 7 Control Piston 032 91443 1 1 8 O Ring 90 S 1 ARP 013 691 00013 2 2 9 O Ring 70 S 1 ARP 152 671 00152 2 2 10 Piston Ring 032 91261 2 2 L10 L20 LOAD SENSING CONTROL parts list CCW ROTATION CW ROTATIO...

Страница 34: ... the metering valve Connect gage to pump output and to load sensing line capable of measuring 20 7 bar pressure difference at 345 bar Connect a relief valve downstream of the metering valve and a flowmeter to measure pump flow 1 Adjust maximum volume stop to full displacement by backing off stop till there is no con tact with the control piston 2 Turn compensator adjustment screw 25 CCW until ther...

Страница 35: ... 25006 1 18 Spool 032 59482 1 21 Plug BSPP 3 8 447 00032 1 22 Plug BSPP 1 4 447 01004 2 25 Soc Setscrew 5 16 24 x 1 1 4 312 13180 1 26 O Ring 70 S 1 ARP 011 671 00011 2 28 Body Valve 032 91620 1 29 Isolation Valve 517 00063 1 29 A O Ring 90 S 1 ARP 017 691 00017 2 29 B O Ring 90 S 1 ARP 015 691 00015 1 31 Adapter 032 91507 1 32 O Ring 90 S 1 ARP 904 691 00904 1 33 Tag Caution 032 91622 1 34 Nut Ac...

Страница 36: ...36 HYDRAULIC CIRCUITS HYDRAULIC CIRCUIT PRESSURE COMPENSATOR C10 HYDRAULIC CIRCUIT PRESSURE COMPENSATOR LOAD SENSING CONFIGURATION C10 www comoso com ...

Страница 37: ...37 HYDRAULIC CIRCUITS HYDRAULIC CIRCUIT TORQUE LIMITER J K10 HYDRAULIC CIRCUIT ROTARY SERVO R10 www comoso com ...

Страница 38: ...38 HYDRAULIC CIRCUITS HYDRAULIC CIRCUIT ROTARY SERVO WITH COMPENSATOR OVERRIDE R1P HYDRAULIC CIRCUIT ROTARY SERVO WITH TORQUE LIMITER OVERRIDE R1J R1K www comoso com ...

Страница 39: ...39 HYDRAULIC CIRCUITS HYDRAULIC CIRCUIT ELECTRIC STROKER E10 HYDRAULIC CIRCUIT ELECTRIC STROKER WITH COMPENSATOR OVERRIDE E1P www comoso com ...

Страница 40: ...40 HYDRAULIC CIRCUITS HYDRAULIC CIRCUIT ELECTRIC STROKER WITH TORQUE LIMITER OVERRIDE E1J E1K HYDRAULIC CIRCUIT HYDRAULIC STROKER H10 www comoso com ...

Страница 41: ...41 HYDRAULIC CIRCUITS HYDRAULIC CIRCUIT HYDRAULIC STROKER WITH TORQUE LIMITER OVERRIDE H1J H1K HYDRAULIC CIRCUIT HYDRAULIC STROKER WITH COMPENSATOR OVERRIDE H1P www comoso com ...

Страница 42: ...NSING CONTROL L10 P260 SERIES PUMP 260 195 130 65 0 0 100 AMPS 200 AMPS 300 AMPS 400 AMPS 5 10 15 20 25 30 CONTROL PRESSURE BAR DISPLACEMENT CC REV H Y D R A U L I C S T R O K E R ELEC TR O H Y D S T R O K E R HYDRAULIC AND ELECTROHYDRAULIC STROKER PERFORMANCE www comoso com ...

Страница 43: ... 107 6 OUTLET PORT B 97 5 REF C1 370 2 MAX ONLY CONTROL L2 TORQUE TO TURN MAX VOL ADJ HANDWHEEL 17 N M 70 BAR 39 N M 500 BAR L1 ONLY CONTROL 231 3 C L AND LOAD SENSING WITH ADJ MAX VOL SCREW STOP CCW PUMP ROTATION SHOWN L1 AS NOTED LOAD SENSING WITH HANDWHEEL ADJ MAX VOL STOP CCW PUMP ROTATION SHOWN L2 AS NOTED 158 7 109 7 OUTLET PORT B TORQUE TO TURN MAX VOL ADJ HANDWHEEL 17 N M 70 BAR 39 N M 500...

Страница 44: ...TO 69 BAR 196 0 RANGE ADJUSTMENT 97 5 162 3 REF H 0 TO 19 BAR OUTLET PORT B ZERO VOLUME STOP ROTARY SERVO R 16 2 158 7 18 3 104 8 12 7 DIA ROTARY INPUT SHAFT 278 0 ELECTRO HYDRAULIC STROKER E 158 7 16 2 6 4 SOLENOID VALVE 60 1 104 8 285 4 227 3 18 3 HYDRAULIC STROKER H PRIMARY CONTROLS CW PUMP ROTATION 16 2 158 7 285 4 216 3 104 8 53 0 18 3 OUTLET PORT B OUTLET PORT B 44 INSTALLATION DRAWINGS www ...

Страница 45: ...23 7 159 0 164 3 97 5 123 7 159 0 159 0 97 5 295 2 231 4 104 8 MAX VOLUME ADJUSTMENT 1 10 STROKE PER TURN COMPENSATOR ADJUSTMENT MAX VOLUME ADJUSTMENT 1 10 STROKE PER TURN 104 8 104 8 MAX VOLUME ADJUSTMENT 1 20 STROKE PER TURN COMPENSATOR ADJUSTMENT TORQUE LIMITER ADJUSTMENTS REF C1 REF C1 OUTLET PORT B OUTLET PORT B OUTLET PORT B REF V REF V 45 INSTALLATION DRAWINGS www comoso com ...

Страница 46: ... maximum volume screw 2 S22 12915 Handwheel Available on Compensator and Torque Limiter Primary controls C S22 15312 Pressure Compensator E S22 15306 Electric Stroker H S22 15308 Hydraulic Stroker J S22 15314 Low Torque Limiter 282 706 Nm K S22 15316 High Torque Limiter 706 1129 Nm L S22 15537 Load Sensing R S22 15310 Rotary Servo Available control combinations C10 C20 E10 E1J E1K E1P H10 H1J H1K ...

Страница 47: ... pressure bar x displacement cm3 rev 20p x mech eff rpm x cm3 rev x bar 600000 x overall eff rpm x cm3 rev x volumetric eff 1000 1000 x flow rate Lpm x volumetric eff displacement cm3 rev pressure bar x displacement cm3 rev x mech eff 20p rpm x cm3 rev x bar x overall eff 600000 The product information specifications and descriptions contained in this catalog have been compiled for the use and con...

Страница 48: ...r Stuttgart Great Britain DENISON HYDRAULICS U K Ltd Kenmore Road Wakefield 41 Industrial Estate Wakefield WF20XE West Yorkshire England Tel 44 19 24 826 021 Fax 44 19 24 826 146 Other sales offices Burgess Hill Hong Kong P R China DENISON HYDRAULICS Ltd Unit 2 25 F Wharf Cable Tower 9 Hoi Shing Road Tsuen Wan N T Hong Kong Tel 852 24988381 Fax 852 24991522 Italy DENISON HYDRAULICS S r l Viale Eur...

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