Danfoss VRH 5, VRH 30, VRH 60, VRH 120 Data sheet
Data sheet
Pressure relief valve
VRH 5 / VRH 30 / VRH 60 / VRH 120
hpp.danfoss.com
Data sheet | Pressure relief valve, type VRH 5, VRH 30, VRH 60 and VRH 120
Table of Contents
Contents
1. Introduction ............................................................................2
2. Features ................................................................................2
3. Variants.................................................................................2
4. Technical data ..........................................................................3
5. Flow ....................................................................................3
5.1 VRH 5 Max. ow 5 l/ min. ................................................................3
5.2 VRH 30 Max. ow 30 l/min. ..............................................................4
5.3 VRH 60 Max. ow 60 l/min. ..............................................................4
5.4 VRH 120 Max. ow 120 l/min. ............................................................5
5.5 VRH 120 F Max. ow 120 l/min............................................................5
6. Mounting ...............................................................................6
7. Operation...............................................................................6
8. Dimensions .............................................................................7
9. Spare parts .............................................................................8
1. Introduction
2. Features • Excellent functional characteristics.
3. Variants
The relief valve is used for protecting the components of a system against overload as a result of a
pressure peak.
Further, the valve is designed for controlling/
limiting the system pressure by draining o the
surplus water from the pressure side.
• Surface easy to clean.
• Corrosion-proof parts (stainless steel,
AISI 304, W. No. 1.4301).
The valves are available in four sizes:
• 5 l/min.
• 30 l/min.
• 60 l/min.
• 120 l/min.
The valve is designed for tap water, i.e. without
additives of any kind to the medium.
(EU-drinking water directive 98/83/EC).
Standard versions made of rustproof steel AISI
304/W. No. 1.4301. Upon request also available in
versions made of stainless steel AISI 316L/W No.
1.4401
The relief valves are available with dierent
pressure ranges.
© Danfoss | DCS (im) | 2020.03
AI24658650288en-001401 | 521B084 | 2
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
0 1 2 3 4 5
P [Bar]
Q [l/min]
Data sheet | Pressure relief valve, type VRH 5, VRH 30, VRH 60 and VRH 120
4. Technical data
Setting
screw
(min. to
max.)
mm
(inch)
Typ e Code no.
Pressure
range
barg (psig)
Flow (max.)
l/min.
(gpm)
Media and
ambient
temperature
°C (°F)
Internal leakage
20% below
max.. setting
pressure
l/min. (gpm)
Weight
kg (lbs)
VRH 5 180G 0034
VRH 5 CA1)180G0033
VRH 30 180G0030
VRH 30 180G0029
VRH 30 180G0031
VRH 30 CA1)180G0032
VRH 60 180G0002
VRH 60 180G0003
VR H 120 180G0020
VR H 120 180G0021
VRH 120 F2)180G0035
1)
Cartridge version
2)
Fire ghting version - recommended inspection after 500 hours of operation
30 -120
(435-1740 )
30 -120
(435-1740 )
25 -140
(362-2030)
10- 40
(145 -580 )
45-210
(652-3045)
25 -140
(362-2030)
25-80
(3 62-116 0)
80 -140
(1160-2030)
25-80
(3 62-116 0)
80 -140
(1160-2030)
80 -140
(1160-2030)
5.3
(0.2)
5.3
(0.2)
5.3
(0.2)
5.3
(0.2)
5.3
(0.2)
5.3
(0.2)
5
(1.3)
5
(1.3)
30
(7. 9)
30
(7. 9)
30
(7. 9)
30
(7. 9)
6.2
(0.24)60(15. 8)
6.2
(0.24)60(15. 8)
7.3
(0.28)
7.3
(0.28)
7.3
(0.28)
120
(31.7)
120
(31.7)
120
(31.7)
50
(122)
50
(122)
50
(122)
50
(122)
50
(122)
50
(122)
50
(122)
50
(122)
50
(122)
50
(122)
50
(122)
up to 0.3
(up to 0.08)
up to 0.3
(up to 0.08)
up to 0.3
(up to 0.08)
up to 0.3
(up to 0.08)
up to 0.3
(up to 0.08)
up to 0.3
(up to 008)
up to 1.0
(up to 0.3)
up to 1.0
(up to 0.3)
up to 1.0
(up to 0.3)
up to 1.0
(up to 0.3))
up to 1.0
(up to 0.3)
0.62
(1.5)
0.62
(1.5)
0.62
(1.5)
0.62
(1.5)
0.62
(1.5)
0.62
(1.5)
1.3
(2.4)
1.3
(2.4)
2.8
(6.2)
2.8
(6.2)
2.8
(6.2)
5. Flow 5.1 VRH 5 Max. ow: 5 l/min.
Pressure setting range: 30-140 barg (435-1740 psig)
© Danfoss | DCS (im) | 2020.03
30 to 120
AI24658650288en-001401 | 521B0841 | 3
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