Quick Disconnect Couplings - Flipbook - Seite 117
Check valves
Product Features
Operating Guidelines
• Standard body material:
Zinc-plated steel
The Danfoss R4000 series is designed to
handle liquids. Should applications involving
gases (but not unstable gases) be considered,
the user should certify that sonic frequencies
will not exceed 1 Hz (one cycle per second).
For further information, please contact
Danfoss technical support.
• Standard seal material:
NBR, FKM, EPDM
Global region
The Danfoss Gromelle R4000 Series steel check valves
are designed for multipurpose hydraulic applications to
either allow flow of fluid in one direction only or limit the
line’s internal pressure to the cracking pressure. Standard
cracking pressures are 0.5 and 1 bar (7.25 and 14.5 psi).
Alternatives can be offered upon request.
R4000 Series
(Steel)
Physical Characteristics
Max. Operating Pressure**
Body
Size
Nominal Flow
Diameter
Non hazardous
liquids & gases in Group 2
Hazardous
liquids & gases in Group 1
Rated
Flow*
(in)
(mm)
bar
(psi)
bar
(psi)
L/min
(gpm)
3.8
700
10,150
700
10,150
4.5
1.19
5.7
700
10,150
700
10,150
14.2
3.75
7.6
700
10,150
700
10,150
22
5.81
½
10.3
500
7,250
500
7,250
32
8.45
¾
14.2
500
7,250
500
7,250
72
19
1
16.5
500
7,250
500
7,250
117
30.9
1¼
20.5
300
4,350
300
4,350
188
49.66
1½
25.8
300
4,350
38
550
232
61.29
2
34.7
300
4,350
28
405
393
103.81
¼
*Indicated values refer to a 1 bar/14.5 psi pressure drop.
**Group 1 = Hazardous media / Group 2 = Other media
European Pressure Equipment Directive
1000
5
4
43.5
3
2"
1-1
1"
3/4
3/8
1/2
1/4
1/8
/2
100
/4
72.5
58
1-1
10
29
2
14.5
1
7.25
0.5
4.35
0.3
2.9
0.2
1.45
Pressure drop (bar)
Flow rate (l/min)
1
Pressure drop (PSI)
Check valves with nominal diameters up
to and including 25 mm are designed
and manufactured under Article 4.3 of the
European Pressure Equipment Directive
PED 2014/68/EU. Check valves with nominal
diameters greater than 25 mm are designed
and manufactured with the stipulations
of Module A of the European Pressure
Equipment Directive PED 2014/68/EU. They
should not be used to convey unstable
gases. Our series R4000 check valves must
not be used as safety devices (as per
PED 2014/68/EU).
Flow Data
0.1
0.264
2.64
26.4
264
Flow rate (gpm)
Test Fluid: Oil viscosity 30 cSt at 40°C / 104°F
Applications & Markets
• All Industries
• Agriculture
• Construction
• Fluid Transfer Lines
Danfoss Quick Disconnect Couplings Master Catalog
Seal Elastomer Data*
Seal Elastomer
NBR (Nitrile)
Max. Operation Temperature Range
-20°C +100°C/-4°F +212°F
FKM
-20°C +200°C/-4°F +392°F
EPDM (Ethylene-Propylene)
-40°C +150°C/-40°F +302°F
* For reference only, based on Danfoss recommended temperatures.
Contact Danfoss technical support for further information on fluid compatibility.
AF435258198969en-000102
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