Hydraulic Flow Control Valves for Accurate Actuator Speed
The speed of a cylinder or hydraulic motor depends on how much oil reaches it. A hydraulic flow control valve creates an adjustable restriction that sets this flow, so machines extend, retract and rotate at the speed the process needs. Techknow Engineering Enterprise is a hydraulic flow control valve supplier and distributor for industrial and mobile applications.
Our range covers simple throttle valves, throttle check valves for one-way speed control and pressure compensated valves that hold a constant speed when the load changes. Each hydraulic flow control valve uses a slotted control spindle and knob, so operators can vary the throttle cross-section and fine-tune the flow rate.
We are an Authorized HYDAC Distributor in India and also supply flow control valves from Rexroth, Parker, Bucher, Yuken, Eaton-Vickers, Sun, Beiri and Hawe in inline, sandwich plate, cartridge and manifold mounting designs.
Engineers and buyers in Mumbai, Pune, Gujarat, Chennai, Hyderabad, Delhi and across India rely on our team for valve selection, direct replacements and seal kits that restore steady machine speed with minimal downtime.
Types of Hydraulic Flow Control Valves We Supply
The right hydraulic flow control valve depends on how accurate the speed must be, whether control is needed in one or both directions, and how the valve will be mounted.
Throttle Valves
A throttle or needle valve provides an adjustable orifice in both directions. It is simple and economical, but flow changes with the pressure difference across the valve, so speed varies with load.
Throttle Check Valves
A throttle check valve restricts flow in one direction and lets oil return freely through an integrated check. It is the usual choice for adjusting cylinder speed in a single direction.
Pressure Compensated Flow Control Valves
A pressure compensated hydraulic flow control valve uses a compensator spool to keep the pressure drop across the orifice constant, so actuator speed stays steady as load and supply pressure change.
Sandwich Plate Flow Control Valves
Sandwich plate designs fit between a directional valve and its sub-plate, often with separate throttle checks for ports A and B, saving space and pipework.
Cartridge Flow Control Valves
Screw-in cartridge flow control valves are installed directly in a manifold block, keeping circuits compact and reducing potential leak points.
Inline Flow Control Valves
Inline valves with threaded ports install directly in pipework or hose lines and are well suited to retrofits and mobile machinery.
Our Flow Control Valve Range Includes
- Inline mounting flow control valves
- Manifold mounting options
- Sandwich plate design
- Cartridge mounting valves
- Pressure compensated types
- With or without check valve feature
- Seal kits and spares for flow valves
Key Benefits
- Precise, repeatable actuator speed
- Smooth acceleration and deceleration of loads
- Independent speed setting for each direction
- Steady speed under changing load (compensated types)
- Easy adjustment through the control knob
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Authorized HYDAC Distributor and Multi-Brand Hydraulic Flow Control Valve Supplier
Techknow Engineering is an Authorized Distributor for HYDAC in India, supplying genuine HYDAC flow control valves backed by OEM specifications and manufacturer support. Techknow is a multi-brand hydraulic flow control valve supplier that also distributes Rexroth, Parker, Bucher, Yuken, Eaton-Vickers, Sun, Beiri and Hawe valves, so you can source throttle, check and compensated designs from one partner.
Hydraulic Flow Control Valve Specifications
Typical ranges across our hydraulic flow control valve programme. Exact values depend on valve type, brand and size.
Operating Pressure
Maximum operating pressure of 350 bar for industrial power units, presses and mobile equipment.
Flow Rate
Maximum flow rate of 400 LPM, with fine adjustment of the throttle cross-section for accurate speed setting.
Valve Sizes
Nominal valve sizes from 06 to 30 to suit existing sub-plates, manifolds and line sizes.
Adjustment
Slotted control spindle with control knob for simple setting of the flow rate at the throttle point.
Seal Material
Seals available in Perbunan (NBR) or Viton (FKM) to suit the fluid and operating temperature.
Mounting Options
Inline, sandwich plate, cartridge and manifold mounting, with or without an integrated check valve (standard cracking pressure 0.5 bar).
Selecting and Applying a Hydraulic Flow Control Valve
Practical guidance for engineers and maintenance teams. Click each topic to expand.
Flow through an orifice depends on its area and on the pressure difference across it. Turning the control knob changes the orifice area. In a non-compensated valve, if the load pressure rises the pressure difference falls, flow reduces and the actuator slows down.
A pressure compensated valve adds a spring-loaded compensator in series with the orifice. It automatically opens or closes to hold a constant pressure drop across the orifice, so the flow, and the actuator speed, stays close to the set value. Oil viscosity also affects flow, so speed can drift as the system warms up; sharp-edged orifice designs reduce this effect.
Meter-in places the valve in the line feeding the actuator. It gives good control for loads that always resist motion.
Meter-out restricts oil leaving the actuator and holds back overrunning loads, for example when lowering a platen. With a differential cylinder, remember that meter-out on the rod side can raise rod-end pressure above system pressure.
Bleed-off diverts part of the pump flow to tank. It runs cooler and wastes less energy, but speed control is less precise than meter-in or meter-out.
Use this checklist before you request a quote:
- Required flow range and accuracy of speed control
- Maximum operating pressure and expected load variation
- Pressure compensation needed or not
- Control in one direction (throttle check) or both directions
- Nominal size and mounting: inline, sandwich, cartridge or manifold
- Port threads, fluid type, temperature and seal material (NBR or FKM)
With a fixed displacement pump, the flow a hydraulic flow control valve holds back usually passes over the relief valve as heat. Correctly set pressure control valves protect the circuit, and where speeds vary widely a variable displacement pump may be more efficient.
At low settings the throttle gap is very small, so contamination can block it and cause erratic speed. Keep fluid clean with suitable hydraulic oil filters, lock the setting after adjustment and replace worn seals with the correct kit.
Powering Industries Across India
Every hydraulic flow control valve we supply is chosen for industries where controlled, repeatable machine speed is essential.
Rolling, Pressing & Casting
Turbine Control & Emergency Backup
Turbine Governing & Dam Gates
Pitch Control & Braking Systems
Excavators, Cranes & Earthmovers
Press Shop, Body Shop & Assembly
Steering & Deck Machinery
Pulp Processing & Paper Production
Crushers, Kilns & Material Handling
Injection & Blow Moulding
Pressure Stabilization & Shutdown
Valve Actuation & Pressure Control
Your Hydraulic System Deserves Better.
Right products, right brands, right expertise — hydraulic solutions that truly perform under pressure.
14+ Years of Experience
Over a decade of experience helping industries across India select and set the right hydraulic flow control valve for accurate actuator speed.
Premium Brand Portfolio
We are an Authorized HYDAC Distributor for HYDAC products and a trusted hydraulic flow control valve supplier and distributor for Rexroth, Parker, Bucher, Yuken, Eaton-Vickers, Sun, Beiri and Hawe.
Pan-India Delivery
Reliable delivery across Mumbai, Pune, Gujarat, Chennai, Hyderabad, Delhi and other industrial regions to keep downtime low.
Expert Technical Support
Advice on meter-in and meter-out circuits, compensation, sizing and speed problems on existing machines.
Replacement Matching
Share the nameplate or model code of an existing valve and our team will check the same model or a suitable alternative.
Seal Kits & Spares
Seal kits and spare parts for quick repairs, reducing maintenance time and keeping circuits running.
What Our Clients Say
Trusted by engineers and procurement heads across India's leading industries
FAQ'S
A hydraulic flow control valve sets the rate of oil flow to an actuator, and therefore the speed of a cylinder or the rpm of a hydraulic motor. It does this by creating an adjustable restriction in the line.
A simple throttle valve passes more or less flow as the pressure difference across it changes, so actuator speed varies with load. A pressure compensated hydraulic flow control valve adds a compensator that keeps the pressure drop across the orifice constant, so speed stays steady when the load changes.
Meter-in control restricts oil going into the actuator and suits loads that always resist motion. Meter-out control restricts oil leaving the actuator and is preferred where the load can run away, such as lowering or overrunning loads. Our team can review your circuit before you choose.
No. A flow control valve regulates speed, not maximum pressure. System pressure must be limited by a relief valve. Excess pump flow that a flow control valve holds back usually passes over the relief valve, which is why correct sizing matters.
Techknow is a hydraulic flow control valve supplier and an Authorized HYDAC Distributor in India for HYDAC products, and also supplies flow control valves from Rexroth, Parker, Bucher, Yuken, Eaton-Vickers, Sun, Beiri and Hawe.
Share the required flow range, maximum operating pressure, whether pressure compensation and a reverse free-flow check are needed, the nominal size, mounting style (inline, sandwich, cartridge or manifold), port threads and seal material. For replacements, send the model code from the existing valve.
Looking for a Hydraulic Flow Control Valve Supplier?
Contact Techknow Engineering for help selecting the right hydraulic flow control valve for your machine, and request a quote with your flow, pressure and mounting details.
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