VH
6Pages

Catalog excerpts

4/3- and 3/3-way directional seated valves type VH (R) and VHP Manually actuated, leakagefree Size 1 Flow Qmax = 12 lpm Operating pressure pmax = 700 bar Size 2 = 25 lpm Flow Qmax Operating pressure pmax = 500 bar Individual valve Directional valve bank Type VH 1(2) for pipe connection (photo) Type VHR 1 (2) for pipe connection Type VHP 1 for installation onto customer supplied manifolds 1. General The 4/3- and 3/3-way directional ball seated valves feature zero leakage and are intended for the movement control of single and double acting consumers. The actuation is via hand lever with spring return into idle position or they will remain in the respecting working position by a detent. The shifting operation is transmitted via an eccenter shaft and pin onto the valve balls. All moving internal parts are lubricated by the hydraulic fluid and therefore maintenance-free. All these parts and the valve seats are hardened and ground. The valve balls are from ball bearings and conform industrial standard DIN 5401 ISO-class G 5 (DIN-class I). These valves are available either as individual valves for pipe connection (type VH) and for manifold mounting (type VHP) or as valve banks (type VHR). The valve banks are internally connected in parallel and held together by a strong tension rod. The individual valve type VH may be arranged later to form a valve bank. HAWE HYDRAULIK SE STREITFELDSTR. 25 • 81673 MÜNCHEN © 1991 by HAWE Hydraulik Directional seated valves of VH(R), VHP April 2008-05

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Type coding, main data Order examples: Individual valve Directional valve bank Table 1: Basic type and size Pipe connection Individual valve Tapped ports ISO 228/1 (BSPP) Symbols acc. to order examples above Directional VHR 1 valve bank VHR 2 Type VHR 1 - G1 / N1 / E2 Manifold mounting Pipe connection Table 2: Flow pattern symbols Available for: Individual valve type VH(P)1 and VH 2 Individual valve type VH (P) 1 and VH 2 and valve banks type VHR 1(2) Switching position Table 3: Actuation Spring return 1) Flow pattern symbols The switch is engaged via the hand lever in idle position of the...

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Further parameters General data Nomenclature, design Seated ball valve, versions with 4/3- and 3/3-way functions Installed position Pipe connection Type VH(R): via pipe fittings with tapped journals shape B DIN 3852 page 2 Type VHP 1: via customer furnished manifolds P = Inlet port (pump) A, B = Consumer R = Return For pressure resistancy see „Operation pressure“ (hydraulic data) Port size Flow direction Only in arrow direction acc. to the resp. symbol Over lapping Valve housing zn-ni galvanized G 1/4 ISO 228/1 (BSPP) G 3/8 ISO 228/1 (BSPP) See dimensional drawings in sect. 4 Actuation...

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Unit dimensions All dimensions in mm, subject to change without notice ! Individual valve Type VH 1 and VH 2 Flow pattern symbols G, E, M, N, D and H Plugged with a tapped plug with flow pattern symbol N ! Tapped plug VSTI R 1/8 ED ERMETO (VH 1) VSTI R 1/4 ED ERMETO (VH 2) Mounting hole for rollpin (anti-rotation device) Tapped ports ISO 228/1 (BSPP): VHR 1 = G 1/4 VHR 2 = G 3/8 #12.2 through hole Type Type VH 1 and VH 2 Flow pattern symbols of L and S Plugged with a tapped plug with type VH 1(2)-S Spring return only for pressure below 50 bar! Mounting hole for rollpin 1) (anti-rotation...

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Type VHP 1 all flow pattern symbols Sealing of ports A, B, P and R by O-rings 6.07x178 NBR 90 Sh. Available as seal kit DS 7647-1. Socket head screw ISO 4762-M6x60-12.9 zinc coated Switch assembly Type VH 1(2) ... and VHR 1(2) ...

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Directional valve bank Inlet section Sealing of ports P and R by O-rings Tapped plug (end section P, and R) Ports P and R plugged with tapped plugs. For missing dimensions see section 4.1!

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