Enerpac MHV-1 Instruction Sheet
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®
Instruction Sheet
MHV-1 Manual Holding Valve
L1664 Rev. A 03/03
Repair Parts Sheets for this product are available from the Enerpac web site at www.enerpac.com, or from your nearest Authorized
Enerpac Service Center or Enerpac Sales office.
1.0 IMPORTANT RECEIVING INSTRUCTIONS
Visually inspect all components for shipping damage. Shipping damage is not covered by warranty. If shipping damage is found, notify carrier at once. The carrier is responsible for all repair and replacement costs resulting from damage in shipment.
Top View
Mounting
Holes
Side View
SAFETY FIRST
2.0 SAFETY ISSUES
Read all instructions, warnings and cautions carefully. Follow all safety precautions to avoid personal injury or property damage during system operation. Enerpac cannot be responsible for damage or injury resulting from unsafe product use, lack of maintenance or incorrect product and/or system operation.
Contact Enerpac when in doubt as to the safety precautions and operations. If you have never been trained on high-pressure hydraulic safety, consult your distribution or service center for a free Enerpac Hydraulic safety course.
Failure to comply with the following cautions and warnings could cause equipment damage and personal injury.
A CAUTION is used to indicate correct operating or maintenance procedures and practices to prevent damage to, or destruction of equipment or other property.
A WARNING indicates a potential danger that requires correct procedures or practices to avoid personal injury.
A DANGER is only used when your action or lack of action may cause serious injury or even death.
WARNING: Wear proper personal protective gear when operating hydraulic equipment.
Plug
1/8-27 NPT Hydraulic Inlet
1/8-27 NPT
Hydraulic Inlet
The modular Holding Valve allows separate operation of clamping fixtures with a single pressure source. This valve is ideal for applications when fluid feed lines are impractical. If system pressure is interrupted, the valve will hold the pressure beyond the valve. To release system pressure, rotate the valve handle in either direction 90° to release and retract system pressure.
WARNING: Stay clear of loads supported by
hydraulics. A cylinder, when used as a load lifting device, should never be used as a load holding device. After the load has been raised or lowered, it must always be blocked mechanically.
DANGER: To avoid personal injury keep hands and feet away from cylinder and workpiece during operation.
WARNING: Do not exceed equipment ratings. Never attempt to lift a load weighing more than the capacity of the cylinder. Overloading causes equipment failure and possible personal injury. The cylinders are designed for a max.
pressure of 350 bar [5,000 psi]. Do not connect a jack or cylinder to a pump with a higher pressure rating.
Never set the relief valve to a higher pressure than the maximum rated pressure of the pump. Higher settings may result in equipment damage and/or personal injury.
WARNING: The system operating pressure must not exceed the pressure rating of the lowest rated component in the system. Install pressure gauges in the system to monitor operating pressure. It is your window to what is happening in the system.
CAUTION: Avoid damaging hydraulic hose. Avoid sharp bends and kinks when routing hydraulic hoses. Using a bent or kinked hose will cause severe back-pressure.
Sharp bends and kinks will internally damage the hose leading to premature hose failure.
Do not drop heavy objects on hose. A sharp impact may cause internal damage to hose wire strands. Applying pressure to a damaged hose may cause it to rupture.
IMPORTANT: Do not lift hydraulic equipment by the hoses or swivel couplers. Use the carrying handle or other means of safe transport.
CAUTION: Keep hydraulic equipment away from
flames and heat. Excessive heat will soften packings and seals, resulting in fluid leaks. Heat also weakens hose materials and packings. For optimum performance do not expose equipment to temperatures of 65 °C [150 °F] or higher. Protect hoses and cylinders from weld spatter.
DANGER: Do not handle pressurized hoses. Escaping oil under pressure can penetrate the skin, causing serious injury. If oil is injected under the skin, see a doctor immediately.
WARNING: Only use hydraulic cylinders in a coupled system. Never use a cylinder with unconnected couplers.
If the cylinder becomes extremely overloaded, components can fail catastrophically causing severe personal injury.
IMPORTANT: Hydraulic equipment must only be serviced by a qualified hydraulic technician. For repair service, contact the Authorized ENERPAC Service Center in your area. To protect your warranty, use only ENERPAC oil.
WARNING: Immediately replace worn or damaged parts by genuine ENERPAC parts. Standard grade parts will break causing personal injury and property damage. ENERPAC parts are designed to fit properly and withstand high loads.
3.0 INSTALLATION
1.
The unit can be mounted in any direction. Secure the valve to any flat surface with two 1/4" mounting bolts.
2.
Connect the pressure line from your pressure source to the hydraulic inlet port on the side of the valve.
3.
Connect another line from the hydraulic outlet port at the end of the valve to your cylinder or tool.
4.0 OPERATION
The valve will hold pressure when the lever arm is pointing to the
"CLOSED" position. It will release pressure when the arm is turned 90° in either direction to "OPEN". The lever arm will lock in the "OPEN" position when it is turned past 90°.
Locked open position
Enerpac Worldwide Locations
Australia
ENERPAC, Applied Power
Australia Ltd.
Block V Unit 3
Regents Park Estate
391 Park Road
Regents Park NSW 2143
(P.O. Box 261) Australia
Tel: +61 297 438 988
Fax: +61 297 438 648
Brazil
Power Packer do Brasil Ltda.
Rua dos Inocentes, 587
04764-050 - Sao Paulo (SP)
Tel: +55 11 5687 2211
Fax: +55 11 5686 5583
Toll Free in Brazil:
Tel: 000 817 200 6718 [email protected]
Canada
Actuant Canada Corporation
6615 Ordan Drive, Unit 14-15
Mississauga, Ontario L5T 1X2
Tel: +1 905 564 5749
Fax: +1 905 564 0305
Toll Free:
Tel: +1 800 268 4987
Fax: +1 800 461 2456
Technical Inquiries: [email protected]
China
Actuant China Ltd.
1F, 269 Fute N. Road
Waigaoqiao Free Trade Zone
Pudong New District
Shanghai, 200 131 China
Tel: +86 21 5866 9099
Fax: +86 21 5866 7156
Actuant China Ltd. (Beijing)
709A Xin No. 2
Diyang Building
Dong San Huan North Rd.
Beijing City, 100028 China
Tel: +86 10 845 36166
Fax: +86 10 845 36220
Greece, Central and Eastern
Europe
ENERPAC B.V.
Storkstraat 25
P.O. Box 269, 3900 AG
Veenendaal
The Netherlands
Tel: +31 318 535 936
Fax: +31 318 535 951
France, Africa
ACTUANT FRANCE S.A.
B.P. 200
Parc d’Activités du Moulin de Massy
F-91882 Massy CEDEX
(Paris) France
Tel: +33 1 601 368 68
Fax: +33 1 692 037 50
Germany, Austria
ENERPAC
Applied Power GmbH
P.O. Box 300113
D-40401 Düsseldorf
Germany
Tel: +49 211 471 490
Fax: +49 211 471 49 28
✦ e-mail: [email protected]
India
ENERPAC Hydraulics
(India) Pvt. Ltd.
Plot No. A/571
MIDC, TTC Industrial Area
Mahape-400 701
Navi Mumbai, India
Tel: +91 22 778 1779
Fax: +91 22 778 1473
Italy
ENERPAC
Applied Power Italiana S.p.A.
Via Canova 4
20094 Corsico (Milano)
Tel: +39 02 4861 111
Fax: +39 02 4860 1288
Japan
Applied Power Japan Ltd.
1-1-11, Shimomae
Toda-shi
Saitama Pref.
Japan 335-0016
Tel: +81 48 430 2311
Fax: +81 48 430 1117
Mexico
Grupo Industrial Baja Tec, S. A. De
C. V.
ATN.
Apdo. Postal # 1 - 147
Admon. # 1, Pachuca, Hidalgo
CP. 42001
Mexico
The Netherlands, Belgium,
Luxembourg, Sweden, Denmark,
Norway, Finland
ENERPAC B.V.
Storkstraat 25
P.O. Box 269, 3900 AG Veenendaal
The Netherlands
Tel: +31 318 535 911
Fax: +31 318 525 613
+31 318 535 848
✦ internet: www.enerpac.com
Spain, Portugal
ENERPAC
C/San José Artesano 8
Pol. Ind.
28108 Alcobendas
(Madrid) Spain
Tel: +34 91 661 11 25
Fax: +34 91 661 47 89
Middle East, Turkey and Caspian Sea
Russia and CIS
(excl. Caspian Sea Countries)
ENERPAC
Leninsky Prospect 95A
117313, Moscow, Russia.
Tel/Fax: +7(095) 936-2005
Tel/Fax: +7(095) 198-3094
Tel/Fax: +7(095) 938-4655
ENERPAC Middle East FZE
P.O. Box 18004
Jebel Ali, Dubai
United Arab Emirates
Tel: +971 (0)4 8872686
Fax: +971 (0)4 8872687
United Kingdom, Ireland
ENERPAC Ltd., P.O. Box 33
New Romney, TN28 8QF
United Kingdom
Tel: +44 01527 598 900
Fax: +44 01527 585 900
Singapore
Actuant Asia Pte. Ltd.
25 Serangoon North Ave. 5
#03-01 Keppel Digihub
Singapore 554914
Thomson Road
P.O. Box 114
Singapore 915704
Tel: +65 64 84 5108
+65 64 84 3737
Fax: +65 64 84 5669
USA, Latin America and Caribbean
ENERPAC
P.O. Box 3241
6100 N. Baker Road
Milwaukee, WI 53209 USA
Tel: +1 262 781 6600
Fax: +1 262 783 9562
South Korea
ENERPAC
Applied Power Korea Ltd.
163-12 Dodang-Dong
Wonmi-Ku, Buchun-shi
Kyunggi-Do
Republic of Korea
Tel: +82 32 675 08 36
Fax: +82 32 675 30 02/73
User inquiries:
+1 800 433 2766
Distributor inquiries/orders:
+1 800 558 0530
Technical Inquiries: [email protected]
06/03
All Enerpac products are guaranteed against defects in workmanship and materials for as long as you own them.
For your nearest authorized Enerpac Service Center, visit us at www.enerpac.com
ECM0306044
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