Top Product

Pressure relief valve

• eliminates premature wear, instability
• maintains seal near set point

Suited for applications requiring overpressure protection and fluid loss minimization (e.g. volatile fluids/gas production and fluid transfer), the PRV95 relief valve eliminates premature wear and instability associated with conventional relief valves. Unlike comparable, direct-acting relief valves, this design has a pressure-sensing disc on the poppet, upstream of the seat that controls the valve position. By placing this control surface in an area of relatively constant fluid density, the PRV95 maintains stable control throughout its operating range. The valve seat seals against the outer radius of the poppet, resulting in sealing surface that’s larger and more contaminant tolerant than a typical point-contact valve seat. Seal integrity is maintained until 98% of set point and reseats at 95-97% (compared to typical 90%:85% values). Marotta, Montville, NJ. www.rsleads.com/306df-184

Gas spring/cylinder CAD templates
This company’s CD-ROM literature on nitrogen gas springs, metric air cylinders and hydraulic core pin cylinders provides both pdf-format specifications and CAD templates for facilitating design. Standard 2D dwg and dxf formats are available, as well as 3D solid model formats, such as Unigraphics, Catia and STEP. The STEP format can be imported into most solid model packages. DADCO, Plymouth, MI. www.rsleads.com/306df-185

Pneumatic pinch valve
The EZ-pinch pneumatic pinch valve with tubing up to 3/8-in. OD has a removable cover plate that eliminates the mess of pulling tubes through a hole for insertion or removal. The valve has a flat bearing surface and an adjustable pinch blade that spreads the closing force on the tubing for precise shots without excessive wear. The rugged valve opens and closes in milliseconds for high accuracy. DTIC Dispensing Technologies, South Lancaster, MA. www.rsleads.com/306df-186

Spray nozzle website
This manufacturer has expanded its line of industrial spray nozzles which can be ordered online. New product lines include flat spray, solid stream and spiral full and hollow cone nozzles in a wide range of pipe sizes and capacities. The website also has an expanded technical reference section which assists with the specification process. Information on flow rate, drop size, impact, spray distribution and cross-references is offered. AllSpray.com, Carol Stream, IL. www.rsleads.com/306df-187

3-way pneumatic valves
The F-5700, F-5800 series pressure piloted 3-way valve has an adjustable pressure pilot setpoint. The adjustable pressure pilot can be set to sense pressure between 0.5 to 100 psi. Valves are offered in both normally-open and normally-closed versions, with various mounting options. Operating temperature is between 40° and 120°F. Air Logic, Racine, WI. www.rsleads.com/306df-188

Cylinder systems, gas springs
The Nitrogen Die Cylinder Systems and Gas Springs CD-ROM contains CAD drawing templates and all product literature. Templates are available in dwg, igs and dxf formats for streamlining the die design process. Components include manifold cylinders, SuperBrute gas springs, consoles, fittings and port plugs. Data sheets are provided in pdf format. Forward Industries, Plymouth, MI. www.rsleads.com/306df-189

Flanged ball valve
The Triac series D9 direct mount 150# and 300# ANSI class flanged ball valve is available in valve/actuator packages with ISO5211 automation pad and choice of electric or pneumatic actuator. A “pyramid power,” live-loaded packing system features a 45-degree pyramidal primary stem seal with Belleville washers and V-ring packing to protect the system against stem leaks. A-T Controls Inc, Cincinnati, OH. www.rsleads.com/306df-190

Pressure reducing valve
The stainless-steel DR20 compact, lightweight valve uses a flow-up design and flat valve-and-plug arrangement to promote secondary pressure stability. This stability augments pressure reduction to reach a turnover ratio of 30:1, virtually eliminating the need for 2-stage pressure reduction. A packless construction with a bellows diaphragm increases precision while decreasing maintenance. TLV Corp, Charlotte, NC. www.rsleads.com/306df-192

Solenoid valves
These 10 and 15 mm direct-acting, 2- and 3-way solenoid valves feature a variety of voltages, orifices and connectors for design flexibility. Fast response times and high flow rates suit these lightweight, miniature valves for various applications. Mounting is provided through aluminum or acrylic multiple-station manifolds or single bases. Pneumadyne Inc, Plymouth, MN. www.rsleads.com/306df-193

Trap valve station
The Big Block universal mount steam trap valve station combines isolation valves, test ports, strainer and blowdown valve in a trap mounting block that conforms to the 2-bolt universal swivel mount connection pattern. The compact, durable block features blowout proof isolation valves with grease fittings, and adjustable Grafoil packing provides a leakproof seal to 1500 psig and 950°F. Nicholson Steam Trap, Walden, NY. www.rsleads.com/306df-194

Fluid systems components
A Quick Look at Fluid System Components offers a broad range of components, including tube fittings, quick connects; weld, pipe and sanitary fittings; instrumentation, process and high-purity valves; and tools and accessories. Valve types include switching/crossover; check/relief; gauge; plastic; regulating; plus several shut-off types, including ball, needle, plug, bellows and diaphragm. Swagelok, Solon, OH. www.rsleads.com/306df-195

Application Xtra

Low-pressure relief valves
The L500 series low-pressure relief valve has accuracy of ±5% at crack pressures from 0.2 to 15 psi where comparable models have greater than 50% tolerance. Sticking and elastomer set, common to such relief valves, is eliminated in this model. They are available as in-line or vent-to-atmosphere with a deflector cap. Application specialists are on hand for specification help. Circle Seal Controls Inc, Corona, CA. www.rsleads.com/306df-196

Solenoid valves
Available in economical models, the low-profile cx-tec Hole Hog straight-though solenoid valve can be configured to suit a variety of applications. The cx-tec works with rather than against the flow forces, allowing use in most gaseous, gelatinous, pasty, semi-dry, contaminated or dirty recycled fluids from vacuum to 600 psi. They are unaffected by system pressure or pressure differential. springer co-ax inc, Penndel, PA. www.rsleads.com/306df-197

Grease valve
The 736HPA pneumatically operated spool valve dispenses consistent amounts of thick assembly fluids without mess. The adjustable stroke control facilitates regulation of surge and snuffback, preventing drooling between cycles. The low-maintenance, stainless steel design with integrated inspection ports operates for millions of dispensing cycles. EFD Inc, East Providence, RI. www.rsleads.com/306df-198

Flanged diaphragm valves
Type-14 flanged diaphragm valves feature improved body-to-bonnet sealing, visual position indications, weir design for good throttling capabilities and built-in travel stop to prevent over-tightening and to eliminate compression strain. Bubble-tight sealing can be achieved even in applications containing suspended particles or slurries. Asahi/America Inc, Malden, MA. www.rsleads.com/306df-199

Valve driver
The DVD-2 programmable digital valve driver is a PWM solenoid driver with modularized electronic printed circuit boards that serve as power amplifiers to drive proportional valves, motors, pumps or other devices. There is a regulated supply for potentiometer and lever inputs. The software-based units process low-power analog input into high-power, high-efficiency PWM output. HED Inc, Hartford, WI. www.rsleads.com/306df-200

Actuator-valve system
The DigiValve series consists of an electric actuator mounted on a high-capacity valve. The actuator’s high-thrust, stall-proof motor provides positive positioning, prevents burnout and permits shutoff up to 750 psi. Digital actuator control allows automatic adaptation to valve stroke, characteristic adaptation and manual operation with input keys. The unit operates with 4-20 mA, 0-10 VDC or Profibus DP. Leslie Controls Inc, Tampa, FL. www.rsleads.com/306df-201

Air cylinders
Designed for basic tooling and automation applications, these low-profile air cylinders have heavy walls for rugged service and threaded end caps to facilitate repair and seal replacement. Dynamic seals can be replaced in many installations without removing the cylinder from its mounting. There are 48 configurations in 16 mounting styles, four bore sizes and various stroke lengths to 12-in. Mack Corp, Flagstaff, AZ. www.rsleads.com/306df-202