Needle Valves (GCT GCTR)
Used as stop valves for pressure gauge lines and small-capacity line. Also can be used as restrictors for regulating flow rates in pilot lines.
O-Ring Sizes
Data Sheet:
Size of O-Ring | SAE J1926-1 SAE Straight Thread O-Ring Port — (For “950” (N. American) Design Standard).
Pilot Operated Flow Control Valves (FH(C)G)
Flow control of these valves is continuously made by a hydraulically operated pilot piston mechanism which controls opening area of the orifice of the valve. With the use of these valves, shockless operation either in acceleratio or deceleration can be obtained. With the compensator for the pressure and temperature, stable flow control can be obtained regardless of the changes in the pressure (load) and temperature (oil viscosity).
Pilot Operated Relief Valves (BG BT)
These valves protect the hydraulic system from excessive pressure, and can be used to maintain constant pressure in a hydraulic system. Remote control and unloading are permitted by using vent circuits.
Pipe Rupture Valve RS
Description
Pipe rupture valves are used wherever a load must not be allowed to drop rapidly and without control if a pipe or hose bursts (ex. uncontrolled movement of the cylinder). In its normal position the pipe rupture valve is open and allows the flow in both directions. When the actuating flow rate is exceeded – by a hose burst, for example – the pipe rupture valve closes suddenly and blocks flow without leakage.
Note
Due to their very high closing speed, these products are not suitable for applications that iclude the transportation of people. The activation of the pipe rupture valve produces very large declerations that can have adverse health effects.
Pipe Rupture Valve RS
Description
Excavator pipe rupture valves prevent uncontrolled cylinder movement in the event that a pipe or hose bursts. The ESV valve fulfills all of the requirements of the ISO 8643 and EN 474-5 standards for excavators.
Precision Orifices
Description
Precision orifices from Bucher Hydraulics are manufactured with close tolerances (+0.02/-0.01) and thus guarantee high flow accuracy. Each orifice is marked with its respective orifice diameter. The orifices are used for throttling and controlling oil flows in all hydraulic applications.
We manufacture burr-free precision nozzles from thread M3 and bore diameters from 0.3 mm. We work primarily with free-cutting steel, other materials are available on request.
