Valve bank (directional spool valve) type CWS
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Valve bank (directional spool valve) type CWS Product documentation Series connection Operating pressure pmax: Flow rate Qmax:

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Overview Valve bank (directional spool valve) type CWS Directional spool valves are a type of directional valve. They control the direction of movement and the velocity of single and double-acting hydraulic consumers. The directional spool valve type CWS is directly actuated and has binary (open/ closed) activation. Multiple directional valves can be combined in series in the valve bank type CWS. A range of connection blocks and mounted blocks offer additional options for a wide range of applications. The valve bank CWS is used mainly in mobile hydraulics. In stationary hydraulics, the...

Connection block Valve section Ancillary block End plate

Available versions 2.4 "End plate" 2.2 "Directional valve section" 2.1 "Connection block" NOTICE A maximum of 10 valve sections can be combined in one valve bank. 2.1 Connection block Ordering example CWS 2 CWS 2 CWS 2 2.1.3 "Connection block basic types" 2.1.2 "Material and ports" 2.1.1 "Basic type and size" 2.1.1 Basic type and size Type Flow rate Qmax (lpm) Directional spool valve type CWS 2, size 2

2.1.2 Material and ports Coding Material of connection block Flow rate Qmax (lpm) Thread as per ISO 228-1, SAE J 514 (UNF) or JIS B 2351 (JIS) Depending on the circuit symbol, the individual ow rate permitted may be smaller. 2.1.3 Connection block basic types Coding Connection block without additional valves Connection block with pressure-limiting valve type MVF 5 C or MVB 5 C as per D 7000 E/1 Connection block with pressure-limiting valve type MVF 6 C or MVB 6 C according to D 7000 E/1 Connection block with pressure-limiting valve type MVF 5 C or MVB 5 C as per D 7000 E/1 and idle...

CWS 2(L)3 SP6/… Connection block with pressure-limiting valve type MVF 6 C or MVB 6 C as per D 7000 E/1 and electro-proportional CWS 2(L) UNF3 SP6/… idle circulation valve (normally open). CWS 2(L) JIS3 SP6/… ■ SP6: EMP 31 S as per D 7490/1 ■ SPB6: EMP 31 S with additional detented manual override CWS 2(L)3 VP6/… Connection block with pressure-limiting valve type MVF 6 C or MVB 6 C as per D 7000 E/1 and electro proportional CWS 2(L) UNF3 VP6/… idle circulation valve (normally closed) type EMP 31 V as per D 7490/1 CWS 2(L) JIS3 VP6/… CWS 2L4(H)(R)6/…-.. Connection block with...

2.1.4 Pressure-limiting valve Coding Standard pressure-limiting valve (type MVF 5 C or MVF 6 C as per D 7000 E/1) Max. permissible return pressure pR = 20 bar (adjustment range 50 to 315 bar) Pressure-limiting valve for increased return pressure (type MVF 5 C or MVB 6 C as per D 7000 E/1) Max. permissible return pressure pR = 200 bar (adjustment range 50 to 315 bar)

2.2 Directional valve section The directional valve section is available either with integrated threads for the consumer ports A and B, or with a ange surface for mounting an ancillary block (see Chapter 2.2.7, "Ancillary block") or an intermediate plate (see Chapter 2.2.8, "Intermediate plate"). Valve section with integrated threads with ancillary block with intermediate plate and ancillary block 2.5 "Solenoid version" 3.5 "Electrical data" 2.4 "End plate" 2.2.6 "Seal of consumer ports" 2.2.7 "Ancillary block" 2.2.5 "Additional functions" 2.2.4 "Hand lever" 2.2.3 "Actuation" 2.2.1...

2.2.1 Circuit symbol 4/3 directional spool valve G 4/2 directional spool valve 3/3 directional spool valve X NOTICE Circuit symbol X is only possible in conjunction with electrical and manual actuation, e.g. MHA (see Chapter 2.2.3, "Actuation" and Chapter 2.2.4, "Hand lever")

2.2.2 Flow rate For CWS sections with proportional actuation (see Chapter 2.2.3, "Actuation"), the spools’ meter-in edges are available in the four nominal sizes listed below: Coding Flow rate QA/B (lpm) at maximum spool valve elevation and at pressure difference of 9 bar NOTICE The valve spool sizes are designed so that in practice the actual ow rate is slightly higher. Depending on the position of the valve section in the manifold, and especially at high ow rates and resulting pressure losses in the manifold, the ow rate may fall below the nominal value. HAWE Hydraul

2.2.3 Actuation On-off actuation Coding Combination options Electrical actuation. Plug position inside on the spool block and upwards in the direction of the consumer ports (standard version). MT Electrical actuation with manual override. the solenoid version DT (see Chapter 2.5, "Solenoid version") and the ancillary blocks coding /(L)2CH, /(L)2CHA, /(L)CHB (see Chapter 2.2.7) Plug position inside on the spool block and upwards in the direction of the consumer ports (standard version). Only in conjunction with Plug position outside and upwards in the direction of the consumer ports. MT1 two...

Electro-proportional actuation Coding Combination options Electro-proportional actuation Plug position inside on the spool block and upwards in the direction of the consumer ports (standard version) a) the solenoid version DT (see Chapter 2.5, "Solenoid version") and b) the ancillary blocks with coding /(L)2CH, /(L)2CHA and /(L)CHB, (see Chapter 2.2.7) requires two additional spacer plates with coding /ZC11 (see Chapter 2.2.8, "Intermediate plate") to prevent collision of magnetic plug with ancillary block. Electro-proportional actuation Electro-proportional actuation with manual override...