SC5H-BP3
7/8-14 UNF • Q
max
60 l/min (16 GPM) • p
max
420 bar (6100 PSI)
0 10 20 30 40 50 60
2
(2.6) (5.3) (7.9) (10.6) (13.2) (15.8)
4
6
8
10
12
14
(29)
(58)
(87)
(116)
(145)
(174)
(203)
16(232)
3
6
9
12
15
(44)
(87)
(130)
(174)
(218)
(260)
(305)
18
21
0 10 20 30 40 50 60
(2.6) (5.3) (7.9) (10.6) (13.2) (15.8)
070
030
010
1
2
3
Symbol
1
2
3
Subject to change · SC5H-BP3_5037_2en_06/2019
Page 1
www.argo-hytos.com
Check Valve, Poppet-type, Pilot to Open
Technical Features
Functional Description
Characteristics measured at ν = 40 mm
2
/s (195 SUS)
› Hardened and precision working parts
› Sharp-edged ground steel seats for dirt-tolerant performance
› Leak-free closing and suitable for fast cycling with long life
› High flow capacity
› Optional sealed piston and bias spring ranges for back-pressure control
› In the standard version, the valve is zinc-coated for 520 h protection acc. to ISO 9227
The valve allows flow to pass from port 2 to 1 while normally closing flow from 1 to 2 with load. When
pressure is applied at port 3. The flow passes from port 1 to 2.
The cartridge valve has a 3:1 pilot ratio. This require minimum one-third of the load pressure applied at port 3
to open the valve. The check valve is also spring closed to secure holding position in static conditions without
the load.
Pressure drop ∆p [bar (PSI)]
Pressure drop ∆p [bar (PSI)]
Flow Q [l/min (GPM)] Flow Q [l/min (GPM)]
Valve size / Cartridge cavity 7/8-14 UNF-2A - LONG / BP3
Max. flow l/min (GPM) 60 (15.8)
Max. operating pressure bar (PSI) 420 (6090)
Pilot ratio 3:1
Fluid temperature range (NBR) °C (°F) -30 ... +100 (-22 ... +212)
Fluid temperature range (FPM) °C (°F) -20 ... +120 (-4 ... +248)
Weight kg (Ibs) 0.13 (0.29)
Datasheet Type
General information GI_0060 Products and operating conditions
Valve bodies In-line mounted SB_0018 SB-BP3*
Sandwich mounted SB-04(06)_0028 SB-BP3*
Cavity details SMT_0019 SMT-BP3*
Spare parts SP_8010
Technical Data
Pressure drop related to flow rate
pilot open (1→2) free flow (2→1)
7/8-14UNF-2A
61(2.40)
47(1.85)
19 05, (0.75)
17 42, (0.69)
27
2
3
1
60+5 Nm
(44.2+3.7 Ibf.ft)
3:1
SC5H - BP3 / H 3 - - B
010
030
070
Subject to change · SC5H-BP3_5037_2en_06/2019
Page 2
www.argo-hytos.com
Dimensions in millimeters (inches)
Ordering Code
Check valve, poppet-type,
pilot to open
Pilot ratio
standard
Valve cavity
7/8-14 UNF
Model
High performance
No designation
S
Seals
NBR
FPM (Viton)
Surface treatment
zinc-coated (ZnNi), ISO 9227 (520 h)
No designation
V
Free flow cracking pressure
1 bar (14.5 PSI)
3 bar (43.5 PSI)
7 bar (101.5 PSI)
Optional pilot piston seal
without pilot piston seal
with pilot piston seal
