Directional spool valves type SW, SWP and NSWP These directional
spool valves are designed as individual
valves either for pipe connection (type SW) or for manifold mounting (type SWP, NSWP) or as
valve bank (type SWP, NSWP). Actuation is via directly acting pressure resistant single stroke solenoids (wet armature); type NSWP may feature twin solenoids enabling two speed rates or prop. solenoids which may be combined also with a stroke limitation. Versions with ATEX-approval are available as well. The individual manifold mounting
valves can be combined with sub-plates enabling pipe connection plus an optional pressure limiting
valve. The
valve sections type NSWP can be combined with various options either on the pump side e.g.
check valves, throttles, or orifices plus orifices or restric-tor
check valves on the consumer side.
Features and benefits: ■ Compact
valve banks ■ Simple controls of proportional functions ■ Various versions ■ Combinations with NG6 available
Intended applications: ■ Machine tools - chipping (milling, drilling, turning, grinding) ■ Construction machinery and machines for building materials ■ Offshore and marine equipment ■ Road vehicle manufacturing
Nomen- Directional spool valve clature: Design: Individual valve for pipe connection Individual manifold mounting valve Valve bank with sub-plates Combination with hydraulic power packs Actuation: Solenoid pmax: 315 bar Qmax: 12 ... 25 lpm Design and order coding example NSWP2 G /M /R / ABR1,0 /50 /G24 - 3/8 r
Indiv. connection block For direct installation in the pipe work, ports G 3/8 (BSPP) (type NSWP and SWP2), with/without
check valve (manually or tool adjustable) between P and R (type SWP1)
Voltage of the actuation solenoids 12V DC, 24V DC, 110V AC, 230V AC ■ Solenoids with various plug versions
Pressure switch or pressure gauge at A or B Additional elements at A and/or B Restrictor
check valve or orifice
Additional elements at P Check
valve or orifice
Solenoid version ■ ON/OFF-solenoid (pmax = 315 bar) ■ Solenoid with detent ■ Prop. solenoid with/without stroke limitation (limiting Qmax) ■ Double solenoid (two speed rates) ■ Solenoid version conforming ATEX (pmax = 210 bar)
Function ■ Indiv.
valve with
check valve or orifice in gallery P and/or
check valve in gallery R (type SWP) ■ Indiv.
valve with 6/2-way function Directional
spool valve SW, SWP size 1 and 2 NSWP size 2, connection hole pattern NG 6 (CETOP)
Basic type, size www.hawe.de | 2011 | 1
