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High Pressure Hydraulic Regulators

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LF 690/691 Series

LF 690/691 Series

'Low Flow' Hydraulic Reducing Regulator with ceramic seating and fully supported main valve for water glycol applications. Piston Sensed for outlet control to 1380bar / 20000psi.
* Basic Model
LF690 (690 bar Inlet)
LF690 (690 bar Inlet)
LF691 (1034 bar Inlet)
LF691 (1380 bar Inlet)
* Cv Value
0.1
0.1
0.05
* Body Material
316SS - Max 1034bar inlet
316SS - Max 1034bar inlet
* Outlet Range
0 - 50 bar (0-725 PSI)
0 - 50 bar (0-725 PSI)
0 - 100 bar (0-1450 PSI)
0 - 200 bar (0-2900 PSI)
0 - 414 bar (0-6000 PSI)
0 - 690 bar (0-10000 PSI)
0 - 862 bar (0-12000 PSI)
0 - 1034 bar (0-15000 PSI)
0 - 140 bar (Air Actuated)(0-2000 PSI)
0 - 600 bar (Air Actuated)(0-8700 PSI)
0 - 1080 bar (Air Actuated)(0-15600 PSI)
* O Ring
NBR
NBR
FKM/FPM
HNBR
* Inlet / Outlet Connections
1/4" NPT
1/4" NPT
1/4" Medium Pressure
3/8" NPT
3/8" Medium Pressure
1/2" NPT
9/16" Medium Pressure
* Porting Configuration
11022000A 20001102A 10102000B 20001010B 10102010C 20101010C 22011010D 10102201D 22001010E 10102200E 20101000F 10002010F 10022000G 20001002G 10102020J 20201010J 10202020K 20201020K 10202000L 20001020L 11022201M 22011102M 10002000N 20001000N 11022020P 20201102P 11002001Q 20011100Q 11022010R 20101102R 22001000U 10002200U 22011000V 10002201V 00000000W 00000000W 10012000X 20001001X 11021020Y 10201102Y
In
Out
Off
* Venting Options
Self Venting
Self Venting
Non Venting
Part Order Number:
checkLF690 - 01 - S - 50S - N - 02N - A - SV -
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Shipping: Typical lead time: 3-4 working weeks
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 Product OverviewFeaturesSpecificationDownloads 
Overview
The LF-690 uses Ceramic Seating to provide ultimate protection against the harsh service encountered on hydraulic services. The unique seating cartridge provides a dampening action on this critical component to prevent 'chattering' or 'unstable frequency resonance'. The regulator is self relieving with segregated captured vent to prevent deterioration to the loading mechanism and making the regulator cleaner to service. The seating area can easily be accessed from the base of the regulator for speedy servicing in situ.
Accessories
Panel Mounting Ring: PT-C-061-003
 
morePanel Mounting Ring: PT-C-061-003
66mm Ø Panel Mounting Ring
  
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