Skip to content

Hydraulic Accessory — Check Valves

Check valves block an oil flow in one direction and allow it in the other direction. They are a type of shutoff valve.  The check valve is inserted when an oil flow shall be allowed in one direction only. Meanwhile, the usage of check valves prevents backflow of the fluid.

Advantages at a Glance:

  • Patented Spherical Shell
  • Available as Screw-In or Caged Version
  • Nominal Size 1/16 – 1/8 – 1/4 – 3/8 – 1/2 – 3/4
  • Working Pressure 10,000 PSI
  • BSP or Metric Thread

The HYTORC-check valves are available with a screw-in or caged design. Even so, both designs can be obtained in two flow directions: with the screw-in direction closed or with free-flow. The spherical cap remains reliably tight in every position, in case of multiple switching cycles and under severe stress.

The HYTORC check valve easily screws into a regular hole (Dimensions screw-in drill). The screw-in check valves are sealed through an edge sealing which is turned to the cage. The edge sealing, together with the drill draft, forms a gap-free chamber for the O-Ring. The gap-free chamber and the O-Ring are repeatable sealing.

The valve is made of a high-strength hardened steel. Moreover, the ball seat is specially treated and the patented spherical shell is manufactured with a high tensile hardened and polished ball bearing ball. Thus, the design of the check valves is compact and economical which saves space and offers simple installation.

Hytorc-HydroWer is a supplier and power unit accessory and valve manufacturer for various applications including construction, mechanical, marine, and industrial.


Related Products

Test Points and Test Hose Assemblies

Pressure is one of the most important diagnostic parameters in the hydraulic circuit.  Obtaining pressure readings is essential to successful preventive maintenance and troubleshooting. The Spradow test points allow the connection of a pressure gauge in only seconds while the equipment is running. It is the safest, cleanest and most convenient way of measuring pressure. Designing your equipment with the Spradow test points will improve the quality of your equipment and in today’s market, higher quality makes the equipment more attractive to potential buyers. The spring loaded check valve inside the test point opens during engagement of the special micro-bore hose fitting end. The connection can be performed under pressure without the use of tools. A single gauge connected to the high pressure micro-bore hose can check an unlimited number of test points. We also offer various types of hose assemblies for direct connection to the test fitting.

Spradow is a supplier and test point and test hose assembly manufacturer for various applications including construction, mechanical, technological, and industrial.


Related Products

Hydraulic Accessory — Butterfly Valves

The Hytorc butterfly valve is a component designed to save time for the technician working on the hydraulic system by not having to drain the reservoir. The valve is designed for low pressure hydraulic lines up to 230 psi and can be installed into the pump suction line or mounted directly on to the hydraulic reservoir for example. The maximum pressure differential on either side of the valve should not exceed 58 psi when the valve is closed.

Furthermore, when equipped with a limit switch, the operator can remotely see the open or closed status of the valve. Also, the thin profile and SAE flange makes it easy to design into the hydraulic circuit. The valve can be actuated with or without the shift handle and locked in to place with the automatic locking bolt. Available options: Reservoir Flange, Limit Switch and Threaded Adapter Bushing Inserts.

Hytorc-HydroWer is a supplier and power unit accessory and valve manufacturer for various applications including construction, mechanical, marine, and industrial.


Related Products

Hydraulic Accessory — Compensators

The HydroWer Rubber Compensator is a product that qualifies as one of the best kept secrets of power unit accessories. The compensators are flexible connectors with SAE or DIN flanges that correct pipe alignment problems. They also provide a benefit with damping of vibrations, noises and movements in axial and transverse direction.

The HydroWer Compensator is constructed of an inner liner of a reinforced high strength nitrile  rubber (Perbunan). The outer and inside layers are smooth and have an aerodynamic design that eliminates cavitation. Both ends have a vulcanized sealing surface, eliminating the need of additional seals. The maximum operating pressure is 115 psi from -4 °F to +176 °F

Hytorc-HydroWer is a supplier and power unit accessory and valve manufacturer for various applications including construction, mechanical, marine, and industrial.


Related Products

Serv-Clip® Hot Tap Connection

The Serv-Clip® tube measuring connection is used to add a test point on an existing hydraulic circuit within 3 minutes—no cutting of pipes, even if the system is pressurized to 9,100 psi (630 bar). Then carry out your measurements: pressure, flow rate, leakage, temperature, oil sampling or connect a variety of measuring devices.

Required tools for installation: 6mm allen wrench and jaw wrench SW22

Models: Serv-Clip® Type 1 (Installation on pressurized pipes):
Used for sensors with G1/4″ thread

Serv-Clip® Type 2 (Installation on non-pressurized pipes):
Used for sensors with G3/8″ thread

Diameters Available:

  • Metric: 10 – 42 mm
  • Tube: 3/8 – 2 inches (9.5 – 50.8mm)
  • Pipe: 1/4 – 3 inches (6.3 – 76.2mm)
  • Over 3 inches (88.9mm) with adaptor SC-XE-607

The flow rate and leakage sensor functions through the calorimetric principle and can be installed with the Serv-Clip tube measuring connection Serv-Clip® (type 2) in 5 Minutes without cutting pipelines and only requiring the pressure of the hydraulic system to be removed while the needle is piercing the pipe or tube and while the sensor is being installed. The output signal is 4 to 20mA and is calibrated according to your requirements. With the Flow Rate Sensor (from 0.164 to 16.4 feet per second or from 0.05 to 5 meters per second). The sensors are available in stainless steel and plastic covers:

  • Monitoring flow rate and wear of pumps
  • Operability of accumulators
  • Filter transmittance
  • Heat exchangers
  • Nozzle flow rate
  • Speed of hydraulic motors

With the Leakage sensor (from 0.164 to 16.4 feet per second or from 0.05 to 5 meters per second):

  • Seal damage and leakage identification

Watch the following videos for a demonstration of how the Serv-Clip is installed and utilized.

Serv-Clip® is a supplier and Serv-Clip® Hot Tap Connection manufacturer for various applications including construction, mechanical, technological, and industrial.


Related Products