Catalog excerpts
Pressure-limiting valve type MV.., SV.., DMV.. Product documentation Operating pressure pmax: Flow rate Qmax:
Open the catalog to page 1© by HAWE Hydraulik SE. The reproduction and distribution of this document, as well as the use and communication of its contents to others without explicit authorization, is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of patent or utility model applications. Brand names, product names and trademarks are not specifically indicated. In particular with regard to registered and protected names and trademarks, usage is subject to legal provisions. HAWE Hydraulik respects these legal provisions in all cases. HAWE Hydraulik cannot provide...
Open the catalog to page 2Overview Pressure-limiting valve type MV.., SV.., DMV.. Pressure-limiting valves are a type of pressure valve. They safeguard the system against excessive system pressure or limit the operating pressure. Sequence valves generate a constant pressure difference between the inlet and outlet ow. The types MV.., SV.., DMV.. are directly controlled valves that are damped as standard. Features and advantages ■ Operating pressures up to 700 bar ■ Various adjustment options ■ Numerous configurations Intended applications ■ General hydraulic systems ■ Test benches ■ Hydraulic tools Pressure-limiting...
Open the catalog to page 4Available versions 2.4 "Damping" 2.3 "Adjustment" 2.2 "Pressure range and ow rate" 2.1 "Basic type and size" 2.1 Basic type and size Type Ports Available (ISO 228-1) pressure ranges Chapter 2.2 Available adjustments Chapter 2.3 Circuit symbol Angle valve for pipeline installation Pressure-limiting valve and sequence valve MVS Angle valve for pipeline installation Screw-in valve
Open the catalog to page 5Ports Available (ISO 228-1) pressure ranges Chapter 2.2 Available adjustments Chapter 2.3 Manifold mounting valve Connection plate without coding without coding Circuit symbol Straight-way valve for straight pipeline installation Pressure-limiting valve (as shock valve) for pipeline installation DMV Twin valve for hydraulic motor without coding without coding without coding Twin valve with antiG 3/8 cavitation valve for cylinder G 1/2 2) Single valve with through bores Pressure-limiting valve with free return ow via a bypass check valve MVCS Angle valve for pipeline installation
Open the catalog to page 6Ports Available (ISO 228-1) pressure ranges Chapter 2.2 Available adjustments Chapter 2.3 Straight-way valve for straight pipeline installation without coding Circuit symbol Conical seat version, service life limited to 50000 cycles; the valve then has to be replaced. Anti-cavitation valves are intended to compensate for volume changes in order to prevent vacuum formation in hydraulic cylinders. 2.2 Pressure range and ow rate Coding Factory-set pressure setting (bar) 1) Flow rate Qmax (lpm) Size 4 if pressure specification missing during ordering for size 8 INFORMATION Lowest achievable...
Open the catalog to page 7Circuit symbol without coding Fixed, tool adjustable Manually adjustable (Wing bolt + wing nut) Turning knob (self-locking) INFORMATION Factory-set sealing possible (specify in plain text) Only with adjustment “without coding” without coding damped (series)
Open the catalog to page 83.1 General data Design Directly controlled pressure valve, in ball seated design MV: Zinc die casting: Standard version for normal operating cases MVS, MVCS: Spheroidal casting: For rough operating conditions. For systems where mechanical shocks or vibrations are unavoidable (vehicle construction). Also in the case of pressure surges in the return line. MVE, MVP, SV, DMV, DMVN, MVT, SVC: Steel Surface protection Steel parts and spheroidal casting, electrogalvanised, spring dome made from zinc die casting, untreated depending on the type, freely hanging in the pipeline or attached over...
Open the catalog to page 93.3 Characteristic lines Viscosity of the hydraulic uid approx. 50 mm2/s Characteristic curve shown based on the example of MV..C (basic trend, certain differences are present depending on the pressure gradient and depending on the housing shape of the various basic types). The characteristic lines change to positive Sp values in the event of increased return pressure. Size 4
Open the catalog to page 11Flow direction R d P with type MVC.. and SVC.. Size 4 Size 5 Size 6 NOTICE Inherent ow resistance in the event of relieved spring (static pressure value 0 bar). Pressures below this boundary are not achievable, see Chapter 3.3, "Characteristic lines" Pressure change Rough reference values (for the closed valve) per 1 revolution on the adjusting screw Pressure (bar) Travel fmax (mm) / Sp (bar) per 1 revolution Size 4 Values in brackets apply for type SV and SVC NOTICE Pressure adjustment only with monitoring of the pressure gauge, see Chapter 6.1, "Setting instructions" HAWE Hydraulik
Open the catalog to page 12All dimensions in mm, subject to change. Sealing option Adjustment without coding xed Coding R Manually adjustable
Open the catalog to page 13SW = Width across ats 1 Sealing option Adjustment Coding R Manually adjustable without coding xed Coding V Turning knob
Open the catalog to page 14Sealing option Adjustment without coding xed Coding R Manually adjustable
Open the catalog to page 15Sealing option Sealing ring DIN 7603-St-A22x27x1.5 Adjustment without coding xed Coding R Manually adjustable Coding V Turning knob
Open the catalog to page 16SW = Width across ats 1 2 Sealing option Sealing ring Adjustment Coding R Manually adjustable without coding xed Coding V Turning knob (not with MVE 8) SW = Width across ats
Open the catalog to page 17Sealing option Centring pin Cylinder screw ISO 4762-M8x35-8.8-A2K Adjustment without coding xed Coding R Manually adjustable Coding V Turning knob Base plate hole pattern
Open the catalog to page 19SW = Width across ats 1 2 3 Sealing option Centring pin Cylinder screw Adjustment Coding R Manually adjustable without coding xed SW = Width across ats HAWE Hydraulik
Open the catalog to page 20Base plate hole pattern Sealing option Centring pin Cylinder screw Base plate hole pattern
Open the catalog to page 21SW = Width across ats Sealing option Sealing option
Open the catalog to page 22Sealing option Sealing option
Open the catalog to page 23Sealing option SW = Width across ats 1 Sealing option
Open the catalog to page 24SW = Width across ats
Open the catalog to page 25Installation, operation and maintenance information Observe the document B 5488 “General operating instructions for assembly, commissioning, and maintenance.” 5.1 Intended use This product is intended exclusively for hydraulic applications (uid technology). The user must observe the safety measures and warnings in this document. Essential requirements for the product to function correctly and safely: All information in this documentation must be observed. This applies in particular to all safety measures and warnings. The product must only be assembled and put into operation by specialist...
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