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Pilot-operated check valves of the series CP allow free flow in one direction.
The counter-flow direction is blocked. By applying the pilot pressure, the poppet can be lifted from its seat against the pressure. Thus flow in the counter-direction is also possible. There are 1 and 2 stage poppets available with pilot ratios of 1 : 5 and 1 : 40, to suit different operating conditions.
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The check and pre-fill valves type F utilize a spring pre-loaded valve head.
The check valves type F enable free flow in one direction and block the flow in the opposite direction.
This valve is used as a high flow valve (check valve with hydraulic release) in top ram presses for quickly draining and replenishing press cylinders during opening and closing in rapid traverse mode. The smaller sizes may be equipped with a pre-reliefe device as an option to prevent pressure surges during decompression (high volume and high pressure surge).
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Non-return valves and pilot operated non-return valves
Sandwich- and screw-in cartridge construction
Nominal sizes NG3-Mini, NG4-Mini, NG6 and NG10
Screw-in cartridges (only pilot operated non-return valves) in accordance with ISO 7789,
nominal sizes M18x1,5, M22x1,5 and M33x2
Maximum pressures up to 350 bar
Volume flows up to 100 l/min
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INTRODUCTION
One-way valve for in-line use.
Suitable for any type of hydraulic system using
liquids that are not highly viscous. The standard
types are in zinc plated carbon steel and are
therefore especially suitable for non-corrosive mineral
based oils and liquids.
FEATURES
Standard types: Good pressure / flow characteristics, see graphs. Valve body in zinc plated carbon steel. Piston in carbon steel. Internal spring in silicon steel - stabilized. Cracking points 5 psi and 65 psi are standard,
other values on request.
ALTERNATIVE USES
As a pressure sequence valve by changing the
internal spring to an appropriate 'cracking point' value.
For flow restrictor check valves a central bleed hole
can be provided, sized to customer requirements.
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APPLICATION
Manually operated check with flow limiting
Non return valves or bypass low pressure reliefs
L/min
(US GPM) bar (PSI) PRODUCTS
12
(3) 350
(5075) FPR1/4
30
(8) 350
(5075) FPR3/8
45
(12) 350
(5075) FPR1/2
85
(22) 300
(4350) FPR3/4
140
(37) 250
(3625) FPR1
220
(58) 250
(3625) FPR11/4
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Equipped with drop weight and hydraulic damper it achieves best function properties. Even the combination of rotary process and check valves belong to the recent delivery program.
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The STAUFF hydraulic accessories programme has
been carefully designed to offer a range of components
suited to the demands of building hydraulic
systems in most industrial and mobile applications.
Whether you require simple filler breathers or precise
electrical level switches, flow control valves or
complete filter units; the STAUFF accessories range
should provide you with the choice you need.
At STAUFF we are aware of the ongoing development
and innovation within the hydraulic industry.
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The Classic Lee Chek is offered in three basic configurations:
o Ø 0.187 and a 0.250 inch diameter axial flow ball-type designed for 3,000 psi systems and available screened and unscreened, forward and reverse flowing.
o Ø 0.187 and a 0.343 inch diameter with convenient side exit porting and enhanced silt resistance. The 0.187 inch diameter is available screened and unscreened, with forward flow only for 4,000 psi systems. The 0.343 inch diameter is available unscreened, with reverse flow only for 5000 psi systems.
o And Ø 0.187 inch diameter Zero Leak, poppet-style, axial flow design with a choice of three different elastomers. Available screened and unscreened, forward and reverse flowing for 3000 psi systems.
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Check valves are poppet style elements that allow free flow in one direction while preventing flow in the reverse direction. They can be used to isolate portions of a hydraulic circuit or to provide a free flow path around a restrictive valve.
Types:
Nose to Side Checks
Soft Seal Check Valve
Side to Nose Check Valve
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FEATURES:
- EVERY PC IS TESTED for leakage.
- OPTIONAL O’RING PORTS to eliminate leakage.
- STEEL BALL will not jam, lock or seize and will always open.
- DELRIN CHECK SEAT for zero leakage.
SPECIFICATIONS:
- Pressure rating 3000 psi (207 bar).
- See creating a model code for flow capacity and port sizes.
- Weighs 0.7 lbs (0.3 kg).
- 30 Micron Filtration Recommended.
MATERIALS:
- Cast Iron Body
- Buna N O’Rings
- Chrome Alloy Steel Ball
- Delrin Check Seat
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The brake system onboard a vehicle is vital for the safety of the vehicle. It is therefore important that the design of the vehicle and the design of the brake system are co-ordinated to give the optimal safety and good performance and that complements other modern cab ergonomics to reduce operator fatigue and give good machine feel.
The valves may be used in open centre, closed centre and load sense hydraulic systems.
The high flow capability of the valve permit use with wet brakes, which typically require more flow for actuation.
Reduced mechanical drag and power loss by allowing the wet brake discs to be further apart when not applied.
A wide range of actuating forces can be specified, including stagemodulating springs for more progressive feel.
A floor-mounted pedal is available in a range of pre-set angles, with optional heel plates.
The valve may be mounted vertically or horizontally beneath the pedal.
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Brake actuators
More safety, performance & reliability
Brake pressure proportional effort
For single & dual circuit
Small, lightweight package
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2100 Valve Series
Description
The Carlisle single circuit (2101) and parallel (2102) circuit, modulating hydraulic control valves are capable of providing modulating output pressures in a range of 600 - 3,500 psi (4,137 to 24,133 kPa).
Application
Hydraulically actuated, single and parallel circuit braking and industrial systems where high quality, precise modulation is required.
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These valves control the reciprocating and rotating speed of hydraulic actuators, A variety of flow control valves including pressure and'or temperature-compensated Mow control valves is available.
Flow Control Valves/Flow Control and Check Valves
These valves are pressure and temperature compensating type valves and maintain a constant flow rate independent of change in system pressure (load) and temperature (viscosity of the fluid). They control the speed of the actuator precisely. The valves with an integral check valve allow a controlled flow and reverse free flow. Repeated resetting can be made easily with a digital readout.
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Various type of pressure control valves are available, from relief valves to pressure switches, to control the pressure at suitable level in the hydraulic system.
Low Noise Type Pilot Operated Reliel Valves
Pilot operated relief valves here have been particularly developed as low noise type. To protect the pumps and control valves from an excessive pressure, the valves are used to control the pressure in the hydraulic system to constant level. The remote control and unloading can be done by using the vent circuit.
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Flow rate control valve for automatic regulation of a constant flow rate in the case of changing supply pressures.
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FEATURES:
- DIAMOND LAPPED SPOOL BORE provides consistent spool fit with low leakage.
- O'RING PORTS to eliminate leakage.
- EVERY EFC IS TESTED for shutoff, linearity, max. flow, crack open and pressure compensation.
- STANDARD 3-PORT allows for pressure compensated flow out of the CF and EX ports.
- MANUAL OVERRIDE when electrical power is lost.
- OPTIONAL 2-PORT allows for pressure compensated flow out of CF port.
- OPTIONAL FREE REVERSE FLOW allows fluid to move from the CF port to the inlet.
- OPTIONAL HIGH LIFT RELIEF.
SPECIFICATIONS:
- See flow chart for capacity.
- 3000 psi (207 bar) rating.
- Weighs 8-1/2 lbs. (3.9 kg).
- Standard Port size #12SAE (1-1/16 - 12).
- 10-Micron Filtration Recommended.
- Pulse Frequency (90 to 115 hz).
- Coil
* 12 VDC standard (24 VDC).
* 9.6 ohms (48 ohms).
* 15 watts (15 watts).
* 1.0 amp max (0.5 amp max.).
- Response Time.
* 0.035" Standard dash pot (375 ms).
* 0.020" Dash pot (900 ms).
* 0.093 Dash pot (175 ms to 350 ms depending on flow).
- Spool leakage (50 ml/min. @1000 psi on EX port).
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- Adjustment Options for FC, FR, NV, MR Series Valves (Tech. Ref. Info.)
- Needle Valves and Rotary Flow Control
- Flow Controls, Free Flow
- Flow Regulators, Pressure-Compensated, Fixed Setting
- Flow Regulator, Restrictive, Adjustable
- Flow Regulators, Pressure-Compensated, Priority Bypass, Fixed Setting
- Flow Regulators, Pressure-Compensated, Adjustable
- Flow Regulators, Fixed Orifice, Bi-Directional
- Flow Controls, Bypass, Adjustable Orifice
- Flow Regulators with Pressure Relief
- Pressure Compensators
- Pressure Compensators, Load Sensing
- Flow Dividers / Combiners
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- MODEL: RF-G02
- MAX. PRESSURE PSI: 3000
- PRESSURE ADJ. RANGE: 100-1000, 500-2000, 1000-3000
- RATE FLOW LPM: 16
- BOLT METER: M5*40L 4 PCS
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- Pressure Control Adjustment Options (Tech. Ref. Info)
- Motion Control Valves
- Relief Valves, Poppet-Type
- Relief Valves, Pilot-Operated, Spool-Type
- Relief Valves, Bi-Directional
- Cross-Over Relief Valves
- Thermal Relief Valve
- Pressure Reducing / Relieving Valves
- Sequence with Pilot and Internal Vent
- Sequence with Pilot and Drain
- Sequence with External Pilot
- Sequence, Kick-Down
- Unloading Pilot
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Pneumatic, electric and hydraulic control valves in all common sizes, pressure ratings and materials in accordance with ANSI, DIN and JIS standards.
Optionally, the valves are available with metal bellows and low-noise trims.
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Control Valve for Mini Excavator
The control valves which change the flow of oil, play a major role in the actions of oil-hydraulic excavators, including its traveling and control of the arms. This product is a sectional type multi control valve developed specially for mini excavators, and it is guaranteed to answer various needs including action control. Compact, multi-functional and with a wide range of a lineup, these control valves boastfully account for its domestic share of over 50%.
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