Bosch Rexroth | SV30GA1-4X
SV30GA1-4X/
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The SV30GA1-4X/ valve belongs to the Hy-Check Valves series from Bosch Rexroth and serves to block reverse flow in hydraulic automation circuits until pilot pressure commands release. It is prepared in nominal size 32 so it fits high-capacity lines, and it connects through a threaded interface that follows the G profile of ISO 228-1. NBR sealing elements hold pressure and resist common hydraulic fluids, while the 10 kg mass still permits manual installation. Any mounting orientation is permitted, which simplifies layout in manifolds or pipe runs. A fixed cracking pressure of 2.5 bar ensures predictable opening, and the built-in pre-opening feature moderates pressure surges during initial movement. The body withstands a maximum operating pressure of 315 bar for use in high-pressure systems. Control area A1 equals 5.72 cm², defining the force applied to the poppet when inlet pressure rises.
The valve permits flows up to 550 l/min, minimizing restriction in circuits that demand rapid actuator motion. Control area A3 measures 16.61 cm², giving a larger surface for pilot pressure to unseat the poppet. Pilot oil returns internally, avoiding the need for an external drain, and the pilot cavity at port X holds 19.27 cm³, which determines the volume that must be displaced for each actuation. System fluid should meet cleanliness class ISO 4406 20/18/15 to protect the seat and pilot channels from contamination. A mean time to dangerous failure of 150 years supports long-term reliability in safety-related assemblies.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Connection Type
Threaded Connection
Control Area A1
5.72 cm²
Control Area A3
16.61 cm²
Cracking Pressure
2.5 bar
Installation Position
Any
Maximum Flow
550 l/min
Maximum Operating Pressure
315 bar
Mttfd
150 Years
Nominal Size
32
Pilot Oil Return
Internal
Pilot Volume Port X
19.27 cm³
Pre-opening
Yes
Seal Material
NBR
Thread Standard
G (ISO 228-1)
Weight
10 kg
1620 Old Apex Road
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