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  hp Overflow Valves with thread Connection

Mode of Operation E; with adjustment screw

For lubricating and hydraulic oils and many other self-lubricating, non-corrosive fluids.

Maximum temperature of delivery fluid: 250 °C.
Material: Casing of hydraulic cast iron (GG 25 / alternative GGG 40).
Piston, valve tip, spring of hardened steel.TV Rheinland
Action: Directly controlled,
spring-loaded overflow valve to maintain
a set operating pressure or a set maximum pressure.
 heating Graph
  
hp overflow valve
 
Type Pressure Rating for
type (Order No.)
Connection-
thread1)
Flow Rate2) l/h Viscosity Range2) cSt Article-No.
for GG 25 for GGG 40
B - PP - E - 0 = 0,5 - 1,5 bar
1 = 1 - 4 bar
2 = 2 - 9 bar
3 = 6 - 29 bar
4 = 15 - 40 bar
G ¼" 6 - 120 2,8 to 480 210001
B - P - E - G 3/8" 15 - 160 2,8 to 480 210002
B - G - E - G ½" 30 - 600 2,8 to 480 210003 210043
B - GH - E - 3) G ¾" 100 - 2000 2,8 to 480 210004 210044
B - GHG - E - G 1" 300 - 6000 2,8 to 480 210005 210045
B - GHG - R 1 ¼" - E - G 1 ¼" 500 - 10000 2,8 to 480 210006
1)  Cyl. Withworth Pipe Threading G...A DIN ISO 228
2)  Performance curve here
3)  No pressure stage 0, instead 1: 0.5 - 3.5 bar. Refer to chart for all other pressure stages.
sublemented axial nut
Type Article-No. Ø / Drilling
BP 840750 20/2,5
BG/FDR 15 840752 20/5,0
BG/FDR 15 840754 20/7,5
BHG/FDR 20 840756 30/10
BGHG 1"/FDR 25 840758 35/15
BGHG 1¼" /FDR 32 840760 35/25
Model Equipment with Regulating Screw
Size Chart
Type a b1 c1 d1 d2 f1 max. pipe NW f2 Adjustable range h at stage:
0 + 1 2 3 4
PP 44 36 34 26 40 G ¼" 10 x 1 8 G 1/8" 10 6 6 1,5
P 55 51 37 36 52 G 3/8" 12 x 1 10 G 1/8" 15 12 8 7
G 55 51 37 36 52 G ½" 18 x 1,5 15 G 1/8" 15 12 8 7
GH 63 57 43 50 70 G ¾" 22 x 1,5 20 G ¼" 15 10 8 5
GHG 80 71 60 56 86 G 1" 28 x 1,5 25 G ¼" 20 17 9 6
GHG - 1 ¼" 80 71 60 56 86 G 1 ¼" 35 x 2 30 G ¼" 20 17 9 6


For assembly, start-up and maintenance, please adhere to the instruction manual that comes with each device!

 
 
 
 
 
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