VPN1-20/S
M30x1,5 โข Q
max
250 l/min (66 GPM) โข p
max
420 bar (6100 PSI)
4
3
2
1
(13.2) (26.4) (39.6) (52.8) (66)
0 50 100 150 200 250
(1450)
(4350)
(2900)
100
300
200
400
(5800)
500
(7250)
4
3
2
1
(1450)
(4350)
(2900)
100
300
200
400
(5800)
500
(7250)
(13.2) (26.4) (39.6) (52.8) (66)
0 50 100 150 200 250
(5.3) (21.1) (37.0) (52.8) (68.7)
0 20 80 140 200 260
(72.5)
(220)
(145)
5
15
10
25
(360)
30
(435)
20
(290)
SY
S, SX
Subject to change ยท VPN1-20/S_5159_1en_11/2017
Page 1
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Technical Features
Functional Description
Technical Data
Characteristics measured at ฮฝ = 32 mm
2
/s (156 SUS)
Pressure Relief Valve, Spool-Type, Pilot-Operated, External Pilot and Drain
โบ Excellent stability throughout ๏ฌow range with rapid response to dynamic pressure changes
โบ Low hysteresis, accurate pressure control and low pressure drop
โบ Wide pressure range up to 420 bar
โบ High ๏ฌow capacity
โบ Hardened precision parts
โบ Ideal for use as control valve where accuracy and repeatability is required
โบ External pilot and drain option
โบ Adjustable by allen key or hand screw, optionally sealable (lockwire holes)
โบ In the standard version, the valve is zinc-coated for 240 h protection acc. to ISO 9227
A pilot-operated, spool-type hydraulic relief valve in the form of a screw-in cartridge intended for
use as a pressure limiting device. Fast-acting with low hysteresis. Because of the absence of any internal seals,
the valve shows excellent reseating and repeatability characteristics. It may be used as a main pressure control
element but due to its two stage design it is not recommended for safety applications where operating speed
is critical. Version SX has an external pilot line, version SY allows a separate drain connection.
Valve size M30x1,5/RA2 M30x1,5/RB3
Model S, SY SX
Max. ๏ฌow l/min (GPM) 250 (66)
Max. pressure ports ( P, X ) bar (PSI) 420 (6100)
Max. pressure ports ( T, Y ) bar (PSI) 160 (2320)
Fluid temperature range (NBR) ยฐC (ยฐF) -30 ... +100 (-22 ... 212)
Fluid temperature range (FPM) ยฐC (ยฐF) -20 ... +120 (-4 ... 248)
Mass kg (Ibs) 0.3 (0.66)
Datasheet Type
General information GI_0060 Products operating conditions
Valve bodies In-line mounted SB 0018 SB-RA2* SB-RB3*
Cavity details SMT_0019 SMT-RA2* SMT-RB3*
Spare parts SP_8010
Model S, SX, SY
Model S
Model SY
Flow Q [l/min (GPM)] Flow Q [l/min (GPM)]
Flow Q [l/min (GPM)]
Pressure p [bar (PSI)]
Pressure drop โp [bar (PSI)]
Model S SX SY
Symbol
Relief pressure related to ๏ฌow rate Relief pressure related to ๏ฌow rate Minimum set and circulation pressure
Model S
VPN1-20 / - -
VPN1-20/S
S
SX
SY
A
B
S
42
90+5 Nm
(66.4+3.7 lbf.ft)
20+2 Nm
(14.8+1.5 lbf.ft)
VPN1-20/SX
VPN1-20/SY
P
TY
+p
p
Subject to change ยท VPN1-20/S_5159_1en_11/2017
Page 2
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Dimensions in millimeters (inches)
Ordering Code
Pressure relief valve, spool-type,
pilot-operated,
external pilot and drain M30x1,5
Seals
NBR
FPM (Viton)
Model
internal pilot and drain
external pilot, external drain
internal pilot, external drain
Pressure range
10 ... 420 bar (145 ...6100 PSI)
Surface treatment
zinc-coated (ZnCr-3), ISO 9227 (240 h)
zinc-coated (ZnNi), ISO 9227 (520 h)
No designation
V
Adjustment option
allen key (hex. 6), without protective cap
