Hydraulic Fluids Flow Orifices and Flow Restrictors
Description
Hydraulic fluids flow orifices and flow restrictors are devices used to control the flow rate of hydraulic fluids within a system. They achieve this by providing a specific restriction to the fluid flow, which can be adjusted by varying the diameter, length, and geometry of the orifice or restrictor.
Working Principle
Flow orifices and flow restrictors work by creating a pressure drop across the device as the fluid passes through. This pressure drop is a result of the friction caused by the fluid's viscosity interacting with the orifice or restrictor's surface. By adjusting the size and shape of the orifice, engineers can control the level of restriction and, consequently, the flow rate. These devices are useful because they allow for precise control of fluid flow, which is critical in maintaining the desired performance of hydraulic systems.
Applications
Flow orifices and flow restrictors are used in various industries for specific applications. In the medical industry, they are employed to control oxygen flow for patients requiring breathing support. In the pharmaceutical industry, they are used for mixing chemicals. In the automotive and aerospace industries, they help meter fuel to engines. In hydraulic systems, they control the speed at which a hydraulic cylinder extends or retracts and attenuate pressure pulses that could damage or confuse sensors .
Advantages over other Flow Orifices and Flow Restrictors
Capillary tubes, a type of flow restrictor, offer advantages over single orifice restrictors by increasing the size of the minimum passage, which reduces the risk of clogging from contamination or debris. This makes them particularly useful in dynamic systems or when fluid properties change .
Limitations
Flow orifices can be prone to clogging from system contamination, which may necessitate additional filtration to ensure acceptable performance. They can also restrict flow in both directions, potentially inhibiting the return performance of single-acting devices due to increased back pressure .
Considerations
When selecting flow orifices and flow restrictors, it is important to consider factors such as initial costs, operating expenses, durability, accuracy, and replacement and maintenance costs. The geometry of the orifice, including diameter, length, and edge design, plays a crucial role in determining the flow rate and fluid behavior, which can impact the overall efficiency and cost-effectiveness of the system .
from ABB Measurement & Analytics
A dual-chamber orifice fitting with double block and bleed (DBB) isolation, suitable for fiscal (custody transfer) applications in locations where. – proven isolation is required and. – pipeline will not/cannot be shut down (or bypassed and isolated) or depressurised for service. FPD220... [See More]
- Media: Hydraulic
- Connection: Female NPT
- Media Temperature: -20 to 100
- Fitting / Connection Size: 1/2 in. NPT female
from ABB Measurement & Analytics
The 1330L can be ordered with internal NPT threads or flanged pipe runs, welded both upstream and downstream of the flow restriction. The orifice assembly may be directly mounted to the transmitter or remote using an optional adapter kit. [See More]
- Media: Hydraulic; Gas
- Max Pressure: 0.3613 to 7.23
- Orifice Diameter: 0.0200 to 0.9180
- Max Liquid Flow: 0.0014 to 43.81
from ABB Measurement & Analytics
Each assembly comprises an orifice plate mounted in (or integral with) a carrier that already has the correct tapping points fitted. [See More]
- Media: Hydraulic; Gas
- Applications: Flow Measurement
- Material: Steel (optional feature); Stainless (optional feature)
from ABB Measurement & Analytics
Part of the orifice carrier range from ABB - Combining the convenience and ease of installation of an orifice carrier assembly, an integral, welded 3- or 5- valve manifold and an optional integral temperature element. Options to reduce Pipe Straight Runs with optional Multi Hole Balanced Orifice... [See More]
- Media: Hydraulic; Gas
- Media Temperature: -40 to 450
- Max Pressure: 1450
- Material: Stainless
from Chonghong Industries(Microwork)Ltd.
We specialize in the manufacturing of the orifice jewel from Sapphire/Ruby, which are used in various control applications of hydraulics, water, chemicals and airflow. A well-controlled process ensures proper edges for inflow of material, followed by a precisely centered and polished hole to ensure... [See More]
- Media: Pneumatic; Hydraulic; Chemical; Water
- Applications: Burner; Medical; Nozzles; Water Jet; Air Jet, Paper-Pulp Industry, Food-Processing Industry, Air Cushions, Valve Seats, Ink Jets
- Material: Sapphire
from Swiss Jewel Company
Aperture Wafers are precision controlled orifices where the ID Length is controlled very tightly. Typical Applications: Hematology Instrumentation, Ink Jet Printing, Flow Control. [See More]
- Media: Pneumatic; Hydraulic; Ink; Chemical; Gas; Blood, Blood Derivatives
- Material: Sapphire
- Orifice Diameter: 0.0016 to 0.0395
- Applications: Flow Measurement; Ink Jet Printing; Hematology Instrumentation
from Chonghong Industries(Microwork)Ltd.
We specialize in the manufacturing of the orifice jewel from Sapphire/Ruby, which are used in various control applications of hydraulics, water, chemicals and airflow. A well-controlled process ensures proper edges for inflow of material, followed by a precisely centered and polished hole to ensure... [See More]
- Media: Pneumatic; Hydraulic; Chemical; Water
- Applications: Burner; Medical; Nozzles; Water Jet; Air Jet, Paper-Pulp Industry, Food-Processing Industry, Air Cushions, Valve Seats, Ink Jets
- Material: Sapphire
from Chonghong Industries(Microwork)Ltd.
We specialize in the manufacturing of the orifice jewel from Sapphire/Ruby, which are used in various control applications of hydraulics, water, chemicals and airflow. A well-controlled process ensures proper edges for inflow of material, followed by a precisely centered and polished hole to ensure... [See More]
- Media: Pneumatic; Hydraulic; Chemical; Water
- Applications: Burner; Medical; Nozzles; Water Jet; Air Jet, Paper-Pulp Industry, Food-Processing Industry, Air Cushions, Valve Seats, Ink Jets
- Material: Sapphire
from Chonghong Industries(Microwork)Ltd.
We specialize in the manufacturing of the orifice jewel from Sapphire/Ruby, which are used in various control applications of hydraulics, water, chemicals and airflow. A well-controlled process ensures proper edges for inflow of material, followed by a precisely centered and polished hole to ensure... [See More]
- Media: Pneumatic; Hydraulic; Chemical; Water
- Applications: Burner; Medical; Nozzles; Water Jet; Air Jet, Paper-Pulp Industry, Food-Processing Industry, Air Cushions, Valve Seats, Ink Jets
- Material: Sapphire