The Valve Shop - Select, Price & Buy Valves Online Process Automation & Controls
Home  |  Products  |  Shopping Info  |  Valve Selection Guide  |  Technical Resources  |  Contacts  |  About Us

Shortcuts: Actuators Air Filter Regulators Chainwheels Go Switch Position Indicators / Limit Switches Relay / Control Box Triac Limit Switch Triac Valve Positioners Valve Positioners Westlock Accutrak Limit Switch Westlock ICoT Valve Positioner Westlock K10 Valve Positioner Parker A-Lok Stainless Steel Tube Fittings

Select Actuators
Actuators are used to operate valves automatically and/or remotely. Actuators typically use pneumatic, electric and hydraulic power to actuate a valve shaft. The force output of the actuator must be sufficient to overcome valve static friction and dynamic torque. Static friction is developed in the metal-to-metal surfaces, seats, and seals. Dynamic torque is that unbalanced force of the process acting on the plug, disc, or ball.

Select Air Filter Regulators
Filter Regulators should be used whenever possible. They filter and regulate the supply pressure for pneumatic actuators and instruments. Instruments have small orifices that can become restricted and plugged by dirty air, moisture can corrode and short electrical components, and pneumatic equipment performance is optimum with regulated supply pressures. Solenoid valves with timers are ideal for blowing off regulator drain cocks.

Select Chainwheels, Chain, and Masterlinks
Chainwheels operate valves in high, normally out-of-reach locations easily and economically. Chainwheels easily attach to the hand wheel of any size valve, ranging from 2 to 36 inches in diameter, allowing valves to be opened and closed from the ground floor. Recommended for a wide range of valve control applications including operation of hard-to reach valves in boiler rooms, production and industrial process locations.

Select GO Switch Leverless Limit Switches
Go Switch leverless limit switches provide reliable, durable position sensing in the most demanding plant conditions. Unlike mechanical limit switches or inductive proximity sensors, Go Switches use a unique hybrid technology that eliminates wear and tear. As a result, Go Switches are more dependable and last longer in the toughest applications.

Select Industrial Tube Fittings
Tube and pipe connections for instrument, analyzer, process control, and general facilities fluid and gas applications. Dk-Lok Brand Instrumentation Tube Fittings and Valves in Carbon Steel, Stainless Steel, Hastelloy-C, Inconel, Monel and Brass.

Select Position Indicators & Limit Switches
Position Indicators provide visual, electronic, and digital indication of valve position. Limit Switches are typically activated by cams connected to the actuator shaft. When activated, they send discrete electrical signals to indicate actual valve position, usually confirming that a valve fully opened or closed operated remotely. In addition, these signals can be used as interlocks in a control system.

Select Valve Positioners
Positioners are used to position a valve based on a control signal. The signal can be pneumatic or electric. The positioner is attached to the valve stem. It compares the actual valve position to the input signal and sends the required output to the actuator to bring the valve to the correct position. The positioner can be analog or digital. Analog positioners use mechanical or electro-mechanical methods to position the valve. Digital (Smart) positioners use microprocessor technology. Smart positioners are preferred for accuracy, reliability, and ease of use.

Select Relay/Control Box

Motorized electric valve actuators need some type of switching device to control them. Relays are typically used to "switch" the valve open and closed based on a contact input. The input contact can come from a manual switch, control system and/or process sensor. Pre-packaged Relay Kits and Control Boxes simplify installation.


Virtual Cart Secure ShoppingWe accept American Express, Visa, MasterCard, Discover, and PayPal Authorized Asco Valve Distributor

Home  |  Products  |  Shopping Info  |  Valve Selection Guide  |  Technical Resources  |  Contacts  |  About Us
Shop Online  |  Manufacturers  |  Terms and Conditions of Sale  |  Shopping Cart  |  Checkout
Disclaimer  |  Security  |  Privacy Policy  |  Legal  |  Suggestion Box  |  Distributors  |  Site Map

The Valve Shop
6070 Corte Del Cedro, Carlsbad, CA 92011
Tel. (760) 438-4840, Fax (760) 438-4836
Toll Free 1-888-358-0030

© 2000-2015 The Valve Shop. All rights reserved.