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link to proportional hydraulics               PT HYDRAULIC INSTALLATION (PDF)

PT Hydraulic Valve Kits

Load sense hydraulic pumps put out low standby pressure (for power steering & brakes) until signaled to go into high pressure (for scrapers, automatic machine control valves, etc.). This increases power & fuel efficiency while decreasing wear on the pump. Laser Grade offers a Custom built load sense manifold which signals the tractor to go into high pressure w/o using diodes. 
Open center hydraulic pumps are less costly & dependable.  When long hydraulic hoses are not needed to pull scrapers, implements, etc. & there is no need for power steering or power brakes such as a dozer, open center hydraulics have proven themselves. Laser Grade offers a Custom made open center manifold with built in pressure relief to insure high efficient & cool open center hydraulics!

"LOAD SENSE"

  

"OPEN CENTER"

  
DO3 LOAD SENSE  PACKAGE
Rexroth Closed Center Valve
(21 GPM Rating - up to 5100 PSI)
Laser Grade Custom Manifold
built in load sense port & flow controls)
 Total Package---------------------------->
$250

 $650
$900		 DO3 OPEN CENTER PACKAGE
 Rexroth Open Center Valve
(21 GPM Rating - up to 5100 PSI)
Laser Grade Custom Manifold
(with built in pressure relief & flow controls)
 Total Package---------------------------->
$250

 $650
$900
DO5 LOAD SENSE  PACKAGE
 Rexroth Closed Center Valve
(32 GPM Rating - up to 4600 PSI)
Laser Grade Custom Manifold
(single or dual bank; built in load sense port & flow controls)
 Total Package---------------------------->
$550
$650


$1200		 DO5 OPEN CENTER PACKAGE
 Rexroth Open Center Valve
(32 GPM Rating - up to 4600 PSI)
Laser Grade Custom Manifold
(with built in pressure relief & flow controls)
 Total Package---------------------------->		 $550
$650

$1200
DO5 LOAD SENSE  PACKAGE
 Rexroth Closed Center Valve
(42 GPM Rating - up to 4570 PSI)
Laser Grade Custom Manifold
(single or dual bank; built in load sense port & flow controls)
 Total Package---------------------------->
$750
$650


$1400		 DO5 OPEN CENTER PACKAGE
 Rexroth Open Center Valve
(42 GPM Rating - up to 4570 PSI)
Laser Grade Custom Manifold
(with built in pressure relief & flow controls)
 Total Package---------------------------->		 $750
$650

$1400


Dual Bank Load Sense Manifold


Open Center Manifold w/built in relief

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