Quick Disconnect Couplings - Flipbook - Seite 121
Check valves
Product Features
Operating Guidelines
• Standard body material: AISI 316L
Stainless steel
• Standard seal material: FKM, EPDM
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.
Global region
The Danfoss Gromelle R4000 Series stainless steel
check-valves are designed 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. It is designed to handle liquids in
all industries and for fluid transfer lines. The material used
offers excellent corrosion resistance.
R4000 Series
(Stainless Steel)
Physical Characteristics
Max. Operating Pressure**
Body Size
Nominal Flow
Diameter
Non hazardous
liquids & gases Group 2
Hazardous
liquids & gases Group 1
(in)
(mm)
(bar)
(bar)
3.8
400
5,800
400
5,800
4.5
1.19
¼
5.7
400
5,800
400
5,800
14.2
3.75
7.6
400
5,800
400
5,800
22
5.81
½
10.3
250
3,625
250
3,625
32
8.45
(psi)
Rated Flow*
(psi)
L/min
(gpm)
¾
14.2
250
3,625
250
3,625
72
19.00
1
16.5
250
3,625
250
3,625
117
30.90
1¼
20.5
150
2,175
150
2,175
188
49.66
1½
25.8
150
2,175
38
550
232
61.29
2
34.7
100
1,450
28
405
393
103.81
*Indicated values refer to a 1 bar / 14.5 psi pressure drop.
**Group 1 = Hazardous media / Group 2 = Other media
Flow Data
European Pressure Equipment Directive
43.5
3
1-1
/
1"
3/4
3/8
1/2
1/4
/2
1000
5
4
1/8
Pressure drop (PSI)
100
2"
10
1-1
1
4
72.5
58
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)
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 in accordance 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).
0.1
0.264
2.64
264
26.4
Flow rate (gpm)
Applicable to valves with 0.5 bar (7.25 psi) cracking pressure
Applications & Markets
• All Industries
• Agriculture
• Construction
• Fluid Transfer Lines
Danfoss Quick Disconnect Couplings Master Catalog
Seal Elastomer Data*
Seal Elastomer
Max. Operation Temperature Range
FKM (Fluorocarbon)*
EPDM (Ethylene-Propylene)**
-20°C +200°C/-4°F +392°F
-40°C +150°C/-40°F +302°F
*For reference only, based on Danfoss recommended temperatures.
**In accordance with NF L 17-241 or NAS 1613 rev. 5
Contact Danfoss technical support for further information on fluid compatibility.
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