Industrial Valve and Actuator Symbols

This post shows industrial valve and actuator symbols found in different types of technical
diagrams used to document instrument systems. Valve symbols typically describe the position, number of ports, and flow control method of particular valves. Actuator symbols generally describe the motive force and control options.

Valve Symbols (generic valve, globe valve, butterfly valve, diaphragm valve, gate valve, ball valve, characterized ball valve, plug valve, pneumatic pinch valve, angle valve, 3-way valve, generic check valve, pressure regulator, ball check valve, safety relief valve.) 

Industrial Valves
Click for larger view.


Actuator Symbols (diaphragm, electric motor, solenoid, piston, diaphragm w/ hand jack, electric motor w/ hand jack, hand (manual), electro-hydraulic, diaphragm w/ positioner, piston w/ positioner.)

Industrial Actuators
Click for larger view.

For application information on industrial valves and actuators, contact Process Control Solutions by calling (800) 462-5769 or visit their website at https://processcontrolsolutions.com.


Durkin Equipment Company and ABB Process Instrumentation


Durkin Equipment Co., is a premier provider of systems integration services and process instrumentation in the St. Louis, MO area, and is the industrial and municipal partner for ABB process instrumentation including pressure, temperature, level, and flow controls, process analyzers and actuators and positioners. A listing of the ABB products Durkin Equipment expertly applies and supports are:

Process Instrumentation
  • Magnetic Flow Meters
  • Differential Flow Meters
  • Vortex & Swirl Meters
  • Coriolis Flow Meters
  • Ultrasonic Flow Meters
  • Rotameters
  • Pressure Transmitters
  • Temperature Transmitters
  • Level Measurement
  • Positioners & Actuators
  • Recorders
  • Controllers
Process Analyzers
  • PH  analyzer
  • ORP Analyzer
  • Conductivity Analyzer
  • Water analyzers
  • Combustion Analyzers
  • Liquid analyzers
  • Toxic Gas Detectors

Process Control Solutions in 45 Seconds

Process Controls Solutions is a value-added distributor and application specialist of process equipment and control products. Additionally, we provide systems integration services and specialize in the design, build, and startup of process and industrial control systems. With decades of experience supporting fluid power, flow control, instrumentation and control system needs, we have accumulated the knowledge to provide innovative solutions for virtually any process application requirement.

https://processcontrolsolutions.com
(800) 462-5769

The D4 Hygienic Double Seat Mix Proof Valve from SPX Flow

D4 Hygienic Double Seat Mix Proof Valve
The SPX D4 Hygienic Double Seat Mix Proof Valve
SPX FLOW is pleased to introduce the hygienic D4 double seat, mix proof valve series. The D (for double seat) valve is used for the reliable separation of dissimilar fluids such as process and CIP solutions. These next-generation valves help fulfill today's customer demands for process flexibility, increased productivity, rapid return on investment, and improved product quality.

The D4 series provides multiple options including non-seat lift, seat lift and ultra hygienic.  This series has high value with low life cycle costs which include:
Reduced inventory costs
  • Low chemical and water loss consumption
  • Low air consumption and air supply requirements
  • Long housing ports to ease manifold building
The lightweight D4 series also makes routine maintenance and handling easy.  These valves are suited for a variety of applications such as milk, soft drinks, dressings, soups, brewing, wine, cleaners and extracts.

Watch the movie below for more detail one the D4. To discuss a specific application, please contact:

Process Control Solutions
https://processcontrolsolutions.com
(800) 462-5769

Wika Pressure and Temperature Measurement Product Catalog

WIKA is the leading global manufacturer of pressure and temperature measurement instrumentation, producing more than 43 million pressure gauges, diaphragm seals, pressure transmitters, thermometers and other instruments annually. WIKA’s extensive product line, including mechanical and electronic instruments, provides measurement solutions for any application in a large variety of industries.

Products include:
  • Mechanical Pressure
  • Electronic Pressure
  • Diaphragm Seals
  • MechanicalTemperature
  • Electronic Temperature 
  • Accessories
Contact Process Control Solutions for all your WIKA requirements.

Process Control Solutions
https://processcontrolsolutions.com
(800) 462-5769

Pinch Valves Provide Superior Performance and Low Total Cost of Ownership for Lime Slurry

Calcite Limestone
Calcite Limestone
Lime is a basic industrial chemical that has widespread use in many chemical processes. It is also used extensively in food and beverages production processes. Examples of chemical industry applications are the manufacture of caustic soda (sodium hydroxide), the production of acetylene, the production of the fertilizer calcium cyanamide, the purification of citric acid, the production of pool chlorine, and the making of road de-icing chemicals. Examples of lime use in the food and beverage industry are the production of sugar, the processing of milk and cream, the production of baking powder, the ripening and storage of fresh fruits and vegetables, and the production of corn tortilla's.

Lime is normally stored as a dry powder and mixed with water or additional chemicals to create a lime slurry that can be pumped through pipes and added to the production stream as needed. The management of lime slurry to process piping, valves, and instrumentation is challenging because of lime's physical and chemical properties. Lime slurry is slightly abrasive and can be quite corrosive depending upon the other chemicals involved. Lime also has a tendency to build up as scale inside pipes and valves. This scaling can severely inhibit the operation of traditional quarter-turn valves and restrict flow. Another concern is the problem of dewatering, which happens at the point where pressure is shut off. The upstream pressure in the line ahead of a flow control valve will force liquid out of the lime, leaving a very hard, dry plug behind. The plug is hard enough to prevent the opening of a ball, plug, or butterfly valve. A significant maintenance headache occurs when this happens.

Pinch valve in lime slurry service
Pinch valves in lime slurry service.
Because of their simple, elastomer wetted, cavity-free design, rubber sleeved pinch valves have proven over time to be the best long-term solution for slurries. Pinch valves provide an excellent seal with tight shut-off, and because of their robust & straight-through design, are able to open and close regardless of obstacles in the flow tube. Other benefits making pinch valves ideal for lime slurry use are low maintenance (no bearings, seals or packing), fast opening and closing, self-cleaning and high Cv.

Control Valve
Control Valve
(Red Valve)

Pinch valves are available in 1" through 96" diameters, can be operated manually or via pneumatic or electric actuators, and perform excellently as control valves.

For any abrasive and corrosive service, and particularly for lime slurry service, pinch valves provide an inexpensive flow control solution with superior performance and very low total cost of ownership.

For more information on the proper application of pinch valves contact Process Control Solutions by calling (800) 462-5769 of by visiting https://flowcontrol.processcontrolsolutions.com.

What is a Triple Offset Butterfly Valve?

Triple Offset Butterfly Valve
Triple Offset Butterfly Valve
Designed as an alternative to the traditional gate valves with metal-to metal seats, triple offset butterfly valves provide distinct advantages over traditional gate valves, namely lower weight, zero-leakage, ease in automation, and capable of being used for modulating service.

Triple offset butterfly valves are designed to fill the demand for an alternate solution to gate valves and ball valves. They are preferred when weight, space, performance, and the ability to modulate to the process flow are an issue. Typically available in sizes 3" through 48", and in 150, 300 and 600 pressure classes, they're rated for operation from -50 deg. F. through 750 deg. F.

Face-to-Face dimensions are standard per AMSE B16.10, API 609, ISO 5752 and BS 5155. with API 598. Triple Offset Butterfly valves allow for bidirectional flow capability while complying with API 598 for seat leak testing, and are inherently fire safe by design. Finally, these valves offer anti-blowout stems and field replaceable seats for both disc seat and the body seat.

Triple Eccentric Disc-Shaft Design (see diagram below)


1st Offset: It is accomplished by moving the centerline of the shaft away from the seating plane.
2nd Offset: It is accomplished by moving the centerline of the shaft offset from the centerline bore of the valve.

These two design features cause the disc to open and close relative to the body seat in a “camming” action and effectuate the position seated valve design which is typical of the High Performance Butterfly Valve, however there is still contact between the disc and the seat in the first several degrees of opening and closing which can cause premature wear of the seat in the general areas.

In order to achieve an API 598 Shut Off classification a 3rd offset needed to be introduced to make the valve a “torque seated” design with graphite and metal seating surfaces.

3rd Offset: It is accomplished by adjusting the cone angle created by the 1st and 2nd offset angles at some point downstream of the valve in the center of the piping to the adjacent piping wall as depicted in the illustration below “Sticking tendency”. By incorporating the 3 offsets into one design typical of gate valves is eliminated with seat contact throughout the entire stroke reducing run torques and improving actuator modulating performance at the same time.

Triple Eccentric Disc-Shaft
Diagram: Triple Eccentric Disc-Shaft Design
(click for larger view).

Applicable Industries
  • Refinery
  • Chemical
  • Petrochemical
  • Power
  • Steam Generation
  • Water/Waste Water Treatment
For more information, contact Process Control Solutions by visiting https://flowcontrol.processcontrolsolutions.com or by calling (800) 462-5769.