Service Utility Push

Service Utility Push

Overview of Push in fitting applications, features and benefits

The concept of push in fitting has been around for decades, yet it has only seen significant growth in the U.S. water market since the early 1990s. Since then, push in fitting have been—by many accounts—the fastest-growing technology change in the water industry.

With their initial entrance into the U.S. water markets in the mid-1980s, push in fitting had to overcome many obstacles of misperception. Dealers and installers couldn't believe something so simple could work reliably. Old methods of connecting tubing (compression and barbed fittings) were difficult to let go for fear of trying something new and innovative. However, as leading edge technologies were changing the water market, more and more installers and OEMs started enjoying the labor-saving and reliability benefits of push in fitting. The rapid acceptance of push in fitting during the 1990s has established them as the connection technology standard for today's water industry.

Applications
push in fitting have found their place in the water industry. Their most common use is for general tubing connections in RO and water filtration systems. However, push in fitting are also used on water valves, tanks, pumps and faucets to ease installation and increase system reliability.

Push in fitting can also be found in installations of water fountains, water coolers, ice machines, juice and beverage dispensers and coffee brewers.

Fitting Construction
While push in fitting require complex engineering design and precise, high-quality manufacturing to produce, they are quite simple to understand and utilize.

Push in fitting are made up of three basic components—the fitting body, a flexible "collet" and an O-ring.

The fitting body can be made from metal (brass, stainless steel) or plastic (acetal, polypropylene). The body has an internal geometry to precisely house the collet, O-ring and tubing when assembled. Fitting bodies come in many configurations such as tees, elbows, unions and threaded connectors.

The collet is typically made from plastic with stainless steel gripping teeth molded into its flexible legs. The collet teeth provide a firm grip on plastic or copper tube. The flexibility of the collet legs allows for easy insertion and release of the tubing.

The O-ring is usually made of a food-grade rubber compound (nitrile, EPDM). It is seated inside the fitting body and forms a seal on the outside diameter (O.D.) of the tube.

Installation
As with any product, proper installation is critical to accurate performance and reliability. Care should be taken with any type of fitting to ensure generally accepted, good installation practices are employed. There are certain key points to remember, specific to push in fitting, to ensure a quality installation:

Tubing. Some push in fitting are limited for use with either plastic or copper tubing. A few are capable of handling both plastic and copper without any change to the fitting. Always check with the manufacturer to ensure tubing compatibility. Tubing should be of sound quality. Ensure that tube dimensions, tolerances, roundness and surface finish are consistent with the manufacturer's recommendations.

Threads. Many push in fitting allow transition from threads to push-in connection. There are various types of threads used such as NPT, NPTF, flare, compression, BSP and BSPT—in straight, tapered, male and female configurations. Again, check the manufacturer's specifications to ensure correct mating of threads. Also, most plastic threaded push in fitting need only be hand-tightened. Over-tightening may cause stress fractures and result in leaks. Your manufacturer's catalog should give tightening torque value guidelines.

General practices. When making a connection with a push-in fitting, it is essential the tube is cut square and is free of score marks, burrs and sharp edges. A quality guillotine-style tube cutter should be used for plastic tubing, while a plumber's pipe cutter should be used for copper tubing. The tube is inserted through the collet, then past the O-ring, all the way to the tube stop. The tube should be pushed in as far as it can go. This ensures the tube is fully inserted and properly seated. The collet holds the tube in place, while the O-ring seals on the tube O.D. It is a good practice to pull on the tube to verify it is secure, and then test the installation prior to use.

One of the benefits of push in fitting is that installations can be quickly disconnected for service. The tube can be removed by simply pushing the collet in squarely against the fitting. With the collet held in this position, tubing is pulled straight out. Generally, both fitting and tubing can be re-used.

Technical Specifications
In the water industry, virtually all push in fitting are made from plastic—commonly acetal or polypropylene. Operating parameters of pressure and temperature may vary from one installation to another. Care should be taken to ensure that application operating parameters are within the fittings manufacturer's guidelines. Check the manufacturer's catalog for technical specifications.

Generally, plastic push in fitting are suitable for pressures from vacuum to 150 lbs. per sq. in. (psi) of pressure, temperatures from 33° to 150° F, and tube O.D.s from 1/4- to 1/2-in. Tube O.D. tolerances should be +.001/-.004 in. to ensure proper sealing on the O-ring. In applications where harsh chemicals are present, the manufacturer's chemical compatibility chart should be referred to. This can be especially important for system cleaning and sanitizing procedures.

Benefits
When compared with the older methods of connection, the benefits of push in fitting begin to stack up quickly.

With compression fittings (metal or plastic) the various bit parts (nuts, ferrules, etc.) must be assembled as part of the connection procedure. Trying to find a dropped nut or ferrule while working beneath a sink is not a very productive use of time. Also, in tightening the compression nut, the question of "how tight is tight enough?" usually comes up.

Similarly, with barbed fittings, the barbed inserts are forcefully pushed into the tube I.D. and then secured by tightening a tiny clamp over the connection. Tees, elbows and other multi-connection fittings become quite a chore to assemble.

push in fitting eliminate the difficulties associated with these older methods. The components of push in fitting are self-contained, insertion is simple and quick, and thread tightening can be done by hand. No pipe dope, sealants or special tools are needed.

In addition, because they are plastic, push in fitting lend themselves better to applications where lead exposure from brass is a concern. Their light weight and small size also make them easy to ship and receive and carry around.

Components and Accessories
Many push in fitting manufacturers offer component part sets that allow push-in technology to be incorporated into product housings. The part sets typically include a metal or plastic "cartridge" insert that presses into a pre-determined port in the housing. The collet snaps into the cartridge after the O-ring is pushed down into its seat. This allows for an integral push-in connection to valves, filters, pumps, etc. Such component part sets are employed at the OEM level, making the OEM's products more user-friendly and thus more marketable.

Various accessories enhance the use of push in fitting. These include locking clips, collet covers and threaded stem adapters to make swivel combinations.

Conclusion

The growth in the use of push in fitting has been fueled by the needs of dealers and installers to enhance productivity, increase reliability, and reduce overall costs. However, one must remember that any product is still only as good as the company that makes it. Areas such as customer service, technical support and training should always be considered when selecting a push-in fitting brand. In addition, the manufacturer should have a strong distribution network and trained sales personnel, as well as provide marketing and promotional support.

About the Author

Our company has formed featured products of Pneumatic Guns Fittings and Hydraulic Fitting as main products including Hose Barb Fitting,Quick Connector,Hose elbow 90 DEG,Barb Fitting,Pneumatic Fitting,Push in fitting,Swivel 45DEG,DOT Brass Fitting,M12 thrust washer,M22 thrust washer,M16 thrust washer,Unequal hex nipple and general and comprehensive series.

LED Utility Push Light $9.78 The TL-20 Illuminators™ twin LED Push-Light is an ultra-bright cordless LED Light that can be installed almost anywhere. Simply push the top of the light to turn on/off. The Illuminators™ LED Push-Light can attach to most surfaces using the adhesive backing or use screws (not included) to permanently mount your light. The TL-20 Push-Light twists freely when mounted allowing you to angle it perfectly. Two super-bright LED Lights illuminate any area where light is needed. Weight: 2.1 oz.Dimensions: 3.375" x 3.375" x .825"Batteries: 3 AAA (not included)

Large 2 Shelf Gladiator Service Utility Stock Cart With 5'' Casters $255.95 Ideal for use in a warehouse, the garage ? any place a rugged cart is needed. This rugged service cart features easy-to-clean structural plastic for industrial, medical and food service use. Features a 3? deep, leak-proof top tray plus a 3? deep bottom shelf. Excellent mobility with 4 casters (2 swivel and 2 fixed) and a comfortable push handle. Easy assembly. Rounded edges and corners will not cut or scrape walls or furniture. Lightweight design allows this cart to be easily maneuvered on 5? nonmarking casters. ? Useable Shelf Area Dimensions: 36?L x 24?W x 4? deep tray - Larger Shelf Area than Competitive Carts! Priced less than the Rubbermaid 4500-88Gray but with much larger useable area. Specifications: Overall Dimensions: 40.5L x 25.5W x 32''H Casters: 5? x 1 1/4? non marking Colour: Gray is standard colour. Other colours also available.By Marnio.

Carson TL20 Illuminators Push LED Utility Light $21.32 The Carson Illuminators Push Light LED Utility Light TL20 is an ultrabright cordless LED light that can be installed almost anywhere. Simply push the top of the Carson utility light to turn on/off and attach it to most surfaces using the adhesive backing or use screws (not included) to permanently mount the Carson TL20. The utility light by Carson also twists freely when mounted allowing it to angle perfectly. Two superbright LED lights illuminate any area where light is needed.

Rubbermaid® Service/Utility Carts $236.2 Noiseless, easy to move carts. Utility cart with two huge trays restrain objects to be moved Noiseless, featherweight and simple to move cart Molded-in clasp with practical storage space sections 4" anti-marking swivel casters

Notice to Quit for Failure to Pay for Utility Service: Alaska $14.95 Notify tenants that their lease has been terminated because a public utility providing electricity, natural gas or water to the premises occupied by the tenant discontinued the service to the premises due to the tenant's failure to pay for service.

Rubbermaid® Service/Utility Carts $236.2 Light carts with non-marking casters. Trolleys with 4" non-staining swivel casters. Two big trays keep in stuffs to be transferred. Silent, light and easy to move cart. Molded-in grip with useful storeroom sections.

Universities in the Service of Truth and Utility $42.71 No Synopsis Available

Service Ideas Black Push Button Lid. Each $12.06 Manufacturer: Service Ideas, Inc. Each. Works with Thermo-Serv Servers, Metallic Luster Servers, and New Generation Servers. Customers also search for: Discount Black Push Button Lid , Buy Black Push Button Lid , Wholesale Black Push Button Lid , NGL-BLK,

Utility Cart, Standard Duty, 3 shelf, 16 x 28-1/2 $171.41 The Lakeside 2501 Utility Cart is great for carrying all kinds of products and it will function perfect in front and back of house applications. With durable polyethylene construction this Lakeside 2501 Utility Cart has easy to clean smooth surfaces and supports three 16 x 28-1/2 inch, lipped shelves with a 300 pound capacity to hold various equipment and supplies. The Lakeside 2501 Utility Cart is lightweight and four casters with a push handle on each side allows for easy maneuverability. A Lakeside 2501 Utility Cart will work well anywhere you need to carry an assortment of materials from remodeling jobs to kitchens it will give you years of reliable service.

Waste Treatment in the Service and Utility Industries $97.45 No Synopsis Available

12 Filler Hose with Push Plug $5.95 LC 12" Filler Hose with Push Plug 12" clear utility jug filler hose Push plug included

Push $5.99 Push

Service Ideas 1 Liter Copper/Black Push Button Server. Each $31.07 Manufacturer: Service Ideas, Inc. Each. Plastic construction, foam insulation. Durable ABS shell. Dishwasher safe. 2-3 hour retention. Safety push-button lid. 9 1/4" x 5" Customers also search for: Discount 1 Liter Copper/Black Push Button Server, Buy 1 L

Service Ideas 2 Liter Copper/Black Push Button Server. Each $30.04 Manufacturer: Service Ideas, Inc. Each. Plastic construction, foam insulation. Durable ABS shell. Dishwasher safe. 2-3 hour retention. Safety push-button lid. 11 1/4" x 6" Customers also search for: Discount 2 Liter Copper/Black Push Button Server, Buy 2

Energizer Utility Lantern $6.99 0% 5109WB-S 6 V DC Utility Lantern Eveready Classic 6-volt Battery Floating Utility Lantern features bright PR13 bulb that produces a strong beam while prolonging battery life. Includes antiroll foot. Contemporary design with durable yellow case. Soft Push Button Switch Bulb Bulb Lantern Energizer Energizer Holdings, Inc Lantern No Shatterproof Lens Utility Lantern Yellow www.energizer.com

Retractable Utility Pen Knife $12.54 This utility pen knife is functional and safe with a retractable blade. This knife is made of steel and fit contently in your pocket. Retractable utility pen knifeSafety block with retractable push buttonMaterials: SteelDimensions:7.63 inches x 2.5 inches x 0.5 inch

Stanley Stanley Utility Knife 10-399 $5.61 Utility knife Aluminum body Quick blade change, just push-button for new blades stored in handle Includes 3 model No. 11-921 heavy-duty blades Brand #: Stanley 10-399 UPC: 076174103991 Keywords: knife utility

Stanley Stanley Utility Knife 10-989 $8.13 Utility knife Rugged aluminum body Yellow finish Knife swivels open with the push of a button for quick, easy blade changes Interlocking nose 3-position retractable blade slide Includes 3 model No. 11-921 heavy-duty blades Brand #: Stanley 10-989 UPC: 076174109894 Keywords: utility knife

Stanley Stanley Utility Knife 10-499 $6.45 Utility knife Quick blade change without taking knife apart Blade storage magazine in rear Replacement blades front loading String cutting feature in body Push-button blade adjustment to 4 positions Includes 3 model No. 11-921 blades Brand #: Stanley 10-499 UPC: 076174104998 Keywords: utility knife

Goldblatt 31705143 6Saw Utility $20.12 Utility Saws. Cuts on both push and pull stroke. Temper hardened blade and teeth. Blade size: 6 Length. Blade Material: Steel. Handle Type: Soft Grip. Applicable Materials: Wood Masonite.

Energizer Energizer 6v Led Utility Lantern 5109LS $7.95 6v led utility lantern Shatterproof lens with a contemporary design and durable case which floats Push-button switch Classic 6V battery included Brand #: Energizer 5109LS UPC: 039800057112 Keywords: lantern utility flashlight

Continental 3-Shelf Utility Cart $160.99 0% 1 1 Each 3 3-Shelf Utility Cart 36" Width x 16" Depth x 31" Height 5810BE Three-shelf cart features a seamless construction for easy cleaning. Use for industrial, food service, and more. Cart holds up to 200 lb. and rolls easily on 4" heavy-duty, nonmarking gray casters. Beige Continental Continental Manufacturing Company No Utility Cart Yes www.continentalcommercialproducts.com

Stanley Stanley Utility Knife 10-788 $8.75 Utility knife Instant Change utility knife designed for comfort, control, and balance Push-button quick blade change Swing out blade change Swing out blade storage magazine Soft rubber- grip Includes 3 model No. 11-921 heavy-duty blades Brand #: Stanley 10-788 UPC: 076174107883 Keywords: knife utility

Service Ideas Black Push Button Lid $31.3 Lid works with Thermo-Serv Servers Metallic Luster Servers and New Generation Servers (PB101)

Utility Computing Technologies, Standards, and Strategies $89 Utility computing is an increasingly important architectural model that allows IT service oriented organizations and departments to make computing resources available to the end user on an as needed basis. The goal of utility computing is to maximize the efficient use of computing resources and minimize associated costs. Providing professionals with expert guidance on integrating utility computing within their organization, this timely, easy-to-understand resource offers a unified view of this service-provisioning model.

Push Push $9.99 Push Push

Bulk Savings 368258 Utility Knife Case of 24 $39.37 Always providing you with the best selection and the best value. Utility Knife 6 . Heavy duty construction autolock push button action.

Rolling Utility Cart in White $56.99 This Rolling Utility Cart by Whitmor makes life so much easier. Perfect for shopping, trips to the laundromat and so much more, this cart allows you to tote your wares without the hassle of carrying them. Featuring a durable steel frame and 2 back tires, this cart is easy to carry and folds flat for easy and convenient storage. The soft foam grip handle makes the cart comfortable to push or pull. Easy to assemble.

Protouch Retractable Utility Knife $17.95 ? Includes 6 Unbreakable Blue Blades ? Quick change mechanism allows for easy blade removal without opening the knife ? Smooth, three-position slide provides increased durability for frequent use ? Easy tool-free entry with push button operation opens the knife and exposes replacement blades ? Features internal storage for up to 5 blades ? Unbreakable bi-metal blade technology stays sharp three times longer than the next best utility blade By Irwin Industrial.

Delivering Utility Computing $120 Learn how to design and deploy utility computing systems to save costs and improve the value that IT delivers. The economic downturn that occurred after the .com boom and bust has put the cost of IT in the spotlight.  By following the principles of utility computing, also known as on-demand computing, real-time infrastructure, or adaptive enterprise, businesses can improve the IT services they offer, whilst reducing costs and improving agility.   Delivering Utility Computing proposes and documents a methodology for delivering utility computing, and provides detailed advice on its principles and benefits.  The authors describe a complete and step-by-step process for adapting to a utility computing system, based on proven methodology. Delivering Utility Computing: Provides a comprehensive description of the utility model, offering guidance on design, deployment and maintenance issues, and a strong section on service level agreements (SLAs). Explains in detail how to improve efficiencies and achieve cost reduction in the IT department. Adopts a thorough approach, taking into account current baselines, phasing, task involved, success factors and best practice principles. Presents a method rooted in theory, yet broad-based and practical, illustrated throughout with examples and real-world case studies. This invaluable text provides CIOs, CFOs, system administrators, IT policy makers and professionals looking to develop utility computing practices in their organizations, as well as researchers in computer science, statisticians, engineers, and graduate students, with an in-depth understanding of the concepts and practicalities of utility computing.

Utility Tong 12 Inch Beige $4.05 Allow easy service of a variety of items from hot or cold buffet lines with the Carlisle Foodservice 4712-06 Utility Tong. Beige in color and made of a revolutionary plastic to be highly durable the Carlisle Foodservice 4712-06 Utility Tong measures 12 inches long and will withstand temperatures up to 300F. The Carlisle Foodservice 4712-06 Utility Tong is great for use anywhere to efficiently and hygienically grasp anything from salads to meatballs.

Utility Tong 9 Inch Beige $3.05 Allow easy service of a variety of items from hot or cold buffet lines with the Carlisle Foodservice 4709-06 Utility Tong. Beige in color and made of a revolutionary plastic to be highly durable the Carlisle Foodservice 4709-06 Utility Tong measures 9 inches long and will withstand temperatures up to 300F. The Carlisle Foodservice 4709-06 Utility Tong is great for use anywhere to efficiently and hygienically grasp anything from onion slices to meatballs.

Folding Lock-Back Utility Knife utility knife with 3 blades $11.51 This unique, multi-functional knife features a lightweight aluminum handle with a clip for easy carrying. Extremely convenient, blades can be changed quickly with the push of a button, and the folding knife can be opened with just one hand.The Excel Folding Lock-Back Utility Knife comes with three extra cutting blades (#92).