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Valve can shut off plastic tubes
Pneumatically operated

Pinch valve

The model 910 valve is a high-flow, pneumatically operated pinch valve that features the ability to close plastic or elastomeric tubes with outside diameters up to 1/2-in. and inside diameters up to 7/16-in. According to the company, this ability to handle plastic tubes is unique. These materials, when combined with a pinch valve's straight thru flow and zero holdout, extends the 910's range of application into areas where this type of valve would not normally be considered. These areas include applications where chemical inertness, sterility, resistance to high temperatures and high flow are required. It also features an adjustable, lockable control to set the flow rate and the amount of tube closure. Tridak, 1120 Federal Rd, Brookfield, CT 06804. 800-289-8735. Circle 635.

8509A638 3-way valve. Pressure- or vacuum-piloted 3-way valves feature adjustable pilot set points. Normally open or normally closed valves are available. Four mounting styles are available, including flush mount, manifold mount, pipe thread and panel mount. Pilot adjustment ranges from 0.5 to 100 psi or 1- to 28-in. Hg. The valves also have maximum signal pressure of 100 psi or 29.9-in. Hg. Air Logic, 5102 Douglas Ave, Racine, WI 53402-2097. 800-558-5950. Circle 638.

8509-639 Heated valve. The jalapeno series heated vacuum valves can reach a minimum internal temperature of 150°C. These VacuComp poppet-style valves are for use in semiconductor processes, where production byproducts can build-up. The build up would interfere with the operation of conventional valves. By heating the valve, the internal temperature is elevated, leaving the byproducts in gaseous form. MKS Instruments, 5330 Sterling Dr, Boulder, CO 80301. 800-345-1967.
Circle 639.

8509A642 Proportional valve controllers. A line of electronic controllers for hydraulic proportional valves provide optimal valve performance in a variety of applications. All three units are designed to be operated with an external potentiometer or another voltage source in 9-28 VDC systems. The panel-mount unit can also be operated with a 0 to 20 mA current input. The coil-mount units are rated for IP65 weather resistance. HydraForce Inc, 500 Barclay Blvd, Lincolnshire, IL 60069. 847-793-2300. Circle 642.

8509A643 Shut off valve. The Tube-O-Matic valve is designed to include the features of the pinch valve. According to the company, the Tube-O-Matic does not collapse entirely as the tubing does in a pinch valve. This valve uses hydraulic or pneumatic pilot pressure to open and close on an airfoil center coil, resulting in less movement or flexing of the tube itself. Pilot pressure of 10 psi over line pressure is all that is required for full valve closure. Lexair Inc, 2025 Mercer Rd, Lexington, KY 40511. 606-255-5001.
Circle 643.

8509-646 Turbine pump. The MTH Series X41 and X51 are sealless stator motor regenerative turbine pumps of cast 316 stainless steel construction fitted with SAE connections. Impellers are of a non-galling stainless steel material and are self-adjusting/centering. Carbon bearings are furnished for supporting motor and pump shaft. Pumps have a range of 2 to 30 GPM while providing heads to 350 ft. MTH Tool Co, 401 East Main St, Plano, IL 60545. 630-552-4115. Circle 646.

8509A647 Spray valve. The FCS100-SS Spray Valves can spray either flat or round patterns. The FCS100-SS is a high pressure, front-end closing style valve. Its lightweight aluminum design with a stainless steel fluid section offers maximum fluid compatibility. All wetted parts are stainless steel or Teflon. The valve can spray materials with viscosity up to 100,000 cps. The valve easily mounts for automated applications. Precision Valve & Automation Inc, 1 Hemlock St, Latham, NY 12110. 518-782-3436. Circle 647.

8509A650 Control valve. The Camflex eccentric plug control valve is ideal for an optimized control system. Features include a bonnet-less design that eliminates a gasket interface, a unique plug and seat design providing tight shut-off without friction, and environmental packing. Also offered is an integrally- mounted positioner that eliminates exposed linkage, a splined shaft for tighter control and stellited trim for tough applications. Dresser Valve and Controls Division, Masoneilan Operations, 85 Bodwell St, Avon, MA 02322-1190. 508-586-4600. Circle 650.

8509-691 Pendulum valve. The Series 65 pendulum valve features a stepper motor-driven gate that pivots in-line with the port and a locking ring that compresses to make the seal with low vibration level during control operation. Developed for semiconductor manufacturing processes, the valve provides virtually particle-free performance. The removable pendulum plate is easy to service and requires no adjustments after cleaning. VAT Inc, 500 West Cummings Park, Woburn, MA 01801. 800-935-1446.
Circle 691.

Air diffuser. Based on the Tideflex 8509A644 Check Valve, the TF-A Air Diffuser Check Valve eliminates backflow into the air manifold, and is not affected by settling sludge or debris. This eliminates routine cleaning and maintenance, and allows the blowers to be shut-down at will with no fear of plugging. The all-rubber construction makes it an excellent choice for harsh environments. It features a PVC or stainless steel 3/4-in. NPT threaded connection. Red Valve Company Inc, 700 North Bell Ave, Carnegie, PA 15106. 412-279-0044. Circle 644.

8509-645 Dispensing pump series. The SV5000 Series of solenoid operated piston-design dispensing pumps include 4 models. Model SV500 provides an output range graduating from 100 to 1500 microliters per dispense. The SV515 has an output range of 3 to 15 microliters per dispense. Model SV525 ranges from 10 to 40 micrometers per dispense, while the SV560 runs from 50 to 350 microliters per dispense. Valcor Engineering Corp, 2 Lawrence Rd, Springfield, NJ 07081. 973-467-8400. Circle 645.

8509A648 Fountain pump. A compact, adjustable and multifunctional fountain pump, The Rena Flow 300, can be used for small fountains with a vertical waterhead and other low volume applications. The pump features a front-mounted flow control for easy access and adjustment. Other features include unlimited settings for precise water control by the user, and a low-mounted pump intake which requires less water for pumping. Rena OEM Sales, 4425 Randolph Rd, Suite 215, Charlotte, NC 28211. 800-968-7362. Circle 648.

8509A649 Thermoplastic pressure regulator. A pressure regulator with downstream settings adjustable to 125 psi has been introduced. High pressure capacity with less pressure drop and greater sensitivity are two features of this regulator. Also offered is a rolling diaphragm design which isolates the spring chamber from its downstream sensing liquid. The large surface area of its diaphragm assures a highly sensitive response. Plast-O-Matic Valves Inc, 1384 Pompton Ave, Cedar Grove, NJ 07009. 973-256-3000. Circle 649.

8509A640 Cylinder-indicator sensors. Strokemaster cylinder-indicator sensors provide precision end-of-stroke sensing for hydraulic/pneumatic cylinders, while eliminating post-installation cable management problems with 305-deg. of rotation freedom on the connector. The sensors allow infinitely adjustable and lockable cable positioning anytime after mounting to the cylinder -- without breaking the seal -- enabling faster installation of the sensor and neat cable runs. Balluff, 8125 Holton Dr, Florence, KY 41042. 606-727-2200. Circle 640.

8509-641 Valve position indicator. The Pointer is a compact, thermoplastic valve position indicator. The unit provides 360-deg. visual and LED local indication, as well as remote position indication. It mounts directly to quarter-turn or rotary actuators. The unit also features a switch with two inductive proximity sensors which provide electronic operation, in contrast to the mechanical operation of most valve position indicators. Automatic Switch Co, 50-60 Hanover Rd, Florham Park, NJ 07932. 800-972-ASCO. Circle 641.

8509A636 Interface valve system. The Smart Distributed System interface for connection with the company's modular pneumatic system is now available. The modular pneumatic valves come in three sizes: 10mm, 18mm and 32mm. This new module allows users to interface up to 96 valves while using only one address on the network instead of four addresses as typically required, according to the company. This valve system is compatible with a number of fieldbus protocols. Burkert Contromatic, 2602 McGaw Ave, Irvine, CA 92614. 949-223-3100. Circle 636.

8509A637 Cylinders. The Series CV cylinders have the Hushcontrol advantage. Hushcontrol is achieved when optional cushion and port controls are ordered with the standard shock pads. Hushcontrol provides superb speed and deceleration control of the piston rod and attached loads. It also provides environmentally-friendly noise levels even at high cycle speeds. Units are offered in six bore sizes from 32 to 100mm to fit a variety of applications. PHD Inc, PO Box 9070, Fort Wayne, IN 46899. 219-747-6151. Circle 637.

Originally published in the September 1998 issue of designfax.
Please Note: some pictures or diagrams are only available through the printed media.