Flange and sandwich design
• Pilot operated: Qmax = 80 l / min
pN max = 350 bar pmax = 400 bar
• Directly controlled: Qmax = 80/25 l / min
pN max = 32/315 bar pmax = 100/400 bar
application
To limit the operating pressure in hydraulic systems by draining the oil
from the secured oil lines P, A or
B to the return / tank line T. flange and
Sandwich valves (vertical stacking) are suitable
especially for machine tools,
Handling of all types, applications in general mechanical engineering as well as interlinking in
Unit construction.
HYDRAULIC CHARACTERISTICS
Hydraulic fluid mineral oils, other media on request
Max. Permissible ISO 4406: 1999, class 18/16/13
Degree of soiling (recommended filter fineness ß 6… 10≥75)
see also data sheet 1.0-50 / 2
Viscosity range 12 mm2
/ s ... 320 mm2
/ s
Hydraulic fluid temperature -20… + 70 ° C
Maximum pressure: pmax = 400 bar
pmax = 100 bar (direct control piston)
Maximum volume flow
pre-, direct Control piston Qmax = 80 l / min
directly controlled tapered piston Qmax = 25 l / min
GENERAL CHARACTERISTICS
Wording pre or directly controlled
Pressure relief valve
Nominal size NG6 according to ISO 4401-03
Flange or sandwich design
Mounting type 4 mounting holes for cheese head screws
M5 or stud bolts M5
Tightening torque MD = 5.5 Nm (quality 8.8)
for fastening screws
MD = 50 Nm for screw cartridges
Connection type threaded connection plates
Row flange plates and
Length linking system
Any installation position
Ambient temperature -20… + 50 ° C
Dimensions: • Flange type m = 1.43 kg
(without screw cartridge) • Sandwich type P, A, B m = 1.18 kg
• Sandwich type AB m = 1.58 kg
description
Pilot and direct operated pressure relief valves NG6. Flange and sandwich design
according to ISO 4401-03 with 4 connections. Proportional pressure relief cartridges M22x1.5 according to ISO 7789 are installed. The steel bodies are for flange and sandwich construction
phosphated.
function
When the set operating pressure is reached, the piston opens and connects the secured line to the return to the tank
T. For flange and sandwich versions
with pressure limitation in P is standard
a connecting thread G1 / 4 Inch(closed)
intended. It enables connection
a manometer.
NG6
ISO 4401-03
