Sun

Reducing Valves (With Reverse Free Flow Check)

Applications
SUN reducing cartridges reduce a high primary pressure at port 2 (inlet) to a controlled lower pressure at port 1. The reduced pressure is determined by the spring adjustment plus any pressure in port 3 (drain).
Typical Application Examples Include:
• Provide a controlled lower pressure to a secondary circuit function
• Provide accurate reduced pressure control for clamp and hold down circuits

*Use reducing valves with blocked center directional valves to provide a lower pressure to a second circuit.
*Use reducing valves with reverse free flow check valves to provide a controlled lower pressure in one direction on reversing actuators.
*(This drawing is not a real circuit, but is intended for description only.)

Part Number
VALVE MATERIAL
OKCancelClear All
PORTS 1 AND 2
OKCancelClear All
PORT 3
OKCancelClear All
RECMM. GPA
OKCancelClear All
A
OKCancelClear All
B
OKCancelClear All
C
OKCancelClear All
PBFB-LAN-B2C
Aluminum
1/2" NPT
1/2" NPT
9
6.59
1.50
3.62
PBFHB-LAN-H4D
Aluminum
3/4" NPT
3/4" NPT
15
8.64
2.50
5.00
PBJB-LAN-K2E
Aluminum
1" NPT
1/4" NPT
30
10.61
3.00
6.00
PBFB-LAN-B4J
Aluminum
8 SAE
8 SAE
9
6.59
1.50
3.62
PBHB-LAN-H4L
Aluminum
12 SAE
12 SAE
15
8.64
2.50
5.00
PBJB-LAN-K2M
Aluminum
16 SAE
6 SAE
30
10.61
3.00
6.00
PBFB-LAN-B2C/S
Steel
1/2" NPT
1/2" NPT
9
6.59
1.50
3.62
PBFHB-LAN-H4D/S
Steel
3/4" NPT
3/4" NPT
15
8.64
2.50
5.00
PBJB-LAN-K2E/S
Steel
1" NPT
1/4" NPT
30
10.61
3.00
6.00
PBFB-LAN-B4J/S
Steel
8 SAE
8 SAE
9
6.59
1.50
3.62
PBHB-LAN-H4L/S
Steel
12 SAE
12 SAE
15
8.64
2.50
5.00
PBJB-LAN-K2M/S
Steel
16 SAE
6 SAE
30
10.61
3.00
6.00

Gauge Port - 1/4" All Valves * 3000 psi max pressure (Aluminum) **5000 psi max pressure (Steel)