Hydac DRVP10 Needle Valves

Hydac DRVP10 Needle Valves

Product Name: Hydac DRVP10 Needle Valves
Product Brand: Hydac
Product Code: DRVP10
Product Artikel: Art.Nr. 3725180
Needle Valves with and without reverse flow check direct-acting Manifold Mounted – 350 bar DVP-/ DRVP- 06 to 40 ·          For regulating the speed of loads ·          For fine adjustment and shut-off of the flow ·          For system-related damping in hydraulic circuits ·          To release pressure from accumulator systems ·          As an emergency drain for lowering a load ·          Spindle patented secured before complete loosening ·          An Allen set-screw locks the setting of the knob ·          Choice of nine sizes ensures best possible adaptability to the system ·          Optional nickel-plated version available (up to size 12)   Operating pressure: max. 350 bar Nominal flow: DVP, DRVP-06 max. 20 l/min DVP, DRVP-08 max. 50 l/min DVP, DRVP-10 max. 60 l/min DVP, DRVP-12 max. 90 l/min DVP, DRVP-16 max. 180 l/min DVP, DRVP-20 max. 300 l/min DVP, DRVP-25 max. 300 l/min DVP, DRVP-30 max. 300 l/min DRVP-40 max. 300 l/min Cracking pressure (on DRVP): 0.5 bar Media operating temperature range: min. -20 °C to max. +80 °C Ambient temperature range: min. -20 °C to max. +80 °C Operating fluid: Hydraulic oil to DIN 51524 Part 1, 2 and 3 Viscosity range: min. 2.8 mm²/s to max. 800 mm²/s Filtration: Class 21/19/16 according to ISO 4406 or cleaner MTTF d : 150 - 1200 years, according to DIN EN ISO 13849-1 Installation: No orientation restrictions, preferably horizontal Materials: Valve body: steel Piston: hardened and ground steel Seals: FKM (standard) Back-up rings: PTFE Weight: DVP 06 = 0.2 kg DRVP 06 = 0.3 kg DVP 08 = 0.4 kg DRVP 10 = 0.8 kg DVP 10 = 0.6 kg DRVP 12 = 1.1 kg DVP 12 = 1.0 kg DRVP 16 = 2.5 kg DVP 16 = 1.7 kg DRVP 25 = 6.7 kg DVP 20 = 3.6 kg DRVP 30 = 3.9 kg DVP 25 = 5.5 kg DRVP 40 = 17.5 kg DVP 30 = 7.5 kg     The DVP is a manifold mounted flow control valve which controls the flow rate by adjusting the cross-section. The flow rate is therefore dependent on the pressure differential and viscosity. Starting with the throttle spindle in the fully closed position, the flow rate increases in accordance with the appropriate curve as the control knob is turned. The flow is controlled in both directions. The scale and coloured rings on the top of the control knob enable accurate repeat setting. The DRVP is a manifold mounted flow control valve which allows the same fine flow adjustment, but in one direction only. Unrestricted flow in the reverse direction is via the built-in check valve (cracking pressure 0.5 bar).