Flow dividers type TQ and TV - HAWE Hydraulik - #1

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Metering valves Flow dividers type TQ and TV The flow dividers type TQ divide (collect) total flow entering (exiting) at port C. The distribution is independent of working pressure at ports A and B, and may be divided equally or unequally in predetermined portions. The flow divider type TV features priority division, i.e. variable flow entering port C is divided where partial flow QA, through port A, is kept constant and the residual flow QB, exits port B. As soon as one actuator’s movement is stopped the flow to the other is either reduced to a minimal flow (type TQ) or completely reduced to leakage flow (type TV). It is possible to overcome this design feature by creating flow via a pressure limiting valve. These valves are used for applications where one pump is required to supply two unevenly loaded consumers, which must be driven simultaneously and independently (type TQ) or if one actuator requires priority flow (type TV) . Nomenclature: Design: Adjustability: pmax: Qmax: Flow dividers with or without priority division Individual valve for pipe mounting Manifold mounting Non-adjustable 300 ... 350 bar 7.5 ... 200 lpm (nom. total flow) 2.4-10 2009 2 4 Basic types and general parameters Flow Qmax (lpm) 7.5 ... 70 7.5 ... 70 7.5 ... 70 80 ...120 80 ... 120 140 ... 200 140 ... 200 60 60 Oper. pressure pmax (bar) 350 350 350 350 350 350 350 300 300 Basic type and size TQ 2.. TQ 3.. TQ 3P TQ 4.. TQ 4P TQ 5.. TQ 5P TV 3.. TV 3P Tapped ports (BSPP) 1) Symbol A G 1/4, G 3/8 G 3/8, G 1/2 --- G 1/2 --- G 3/4 --- G 3/8 --- B G 1/4, G 3/8 G 3/8, G 1/2 --- G 1/2 --- G 3/4 --- G 1/2 --- C G 3/8 G 1/2 -- G 3/4 --- G 1 --- G 1/2 --- TQ TQ.P TV TV.P Pipe mounting Manifold mounting Additional versions • Flow divider type TQ without return flow feature • Flow divider type TQ with by-pass check valves enabling return flow • Flow divider type TQ with unequal division Order examples TQ 32 - A3 Flow divider type TQ, size 3, tapped port size 2 (C = G 1/2; A,B = G 3/8), version A (dividing or collecting), with a nominal total flow QCN = 45 lpm (coding 3) TV 3 - 2,5 Flow divider with priority division type TV, size 3, flow coding 2.5 (QA = 5.8 lpm) 1) For pipe mounting versions only