Metal Bellows

Many people as well as companies are choosing metal bellows as their preferred choice. The benefits of metal bellows are the fact that they can be compressed when pressure is exerted on them and then they are able to readily return to their normal size when the pressure has been taken off of them. Metal bellows expand easily as well as mold to the environment due to their flexibility and ease with air flow. Metal bellows are an extreme advancement from their previous counterparts being leather bellows which did not expand as readily.

If you are looking for metal bellows, they come in two different types including formed and welded. Metal bellows which are welded come when different bellows are welded together. Welded bellows are also called edge welded bellows or diaphragm bellows. The other type, formed bellows, use different processes to create them such as cold forming, electroforming and hydro forming. Formed bellows are made by reworking tubes as in deep drawing. The benefit with welded bellows is the fact that they can be made with a low price point in mind and have a higher sustainability than formed bellows. Although welded bellows are often preferred, they do have a few drawbacks a well. Welded bellows have a tendency to have a reduced metal strength at the weld joints and this is due to extremely high temperatures of the welding process. Welded bellows are made using a variety of different metals and alloys. Formed bellows differ in the fact that they are made using only alloy that offer very good elongation such as brass. The problem with welded bellows is that they are not made using elongation materials such as brass because materials such as brass are not good for welding purposes and therefore cannot be used in welded bellows. Overall, the choice is up to the individual and the job at hand in determining which metal bellow works for them. 

Flexible metal hosing

Flexible metal hosing has been readily increasing in popularity due to the flexibility of the hosing, the versatility of the hosing, as well as the ease that the hosing has with so many different types of machines. There are many instances where a flexible metal hose comes in very handy and works to benefit the individual installing the hosing as well as what is being transported in between the hosing. Flexible metal hoses are usually used for carrying gases and liquids at elevated temperatures such as refrigerant and natural gas lines. But, flexible metal hoses can also be used to carry oil, steam and even engine exhaust. Flexible metal hoses are distinct because of the fact that the hoses carry an immense amount of protection against abrasion and pressure. This makes flexible metal hoses much better than solid tubing and piping.

A flexible metal hose is used for many different industrial as well as commercial needs. Some of the different flexible metal hose designs include helical hoses, annular hoses and braided hoses. Many of the highest quality metal hoses are made of stainless steel or high nickel alloy and some flexible metal hoses are made from corrugated bronze. The best aspect about a flexible metal hose is the many different varieties of thickness size and length they come in. There are many optional sizes available such as 3/16” inches. Flexible metal hoses are categorized by pipe size that is referred to as NPT. Flexible metal hoses also come in different types of formations such as on reels. And, flexible metal hoses are also either hydraulically formed or mechanically formed. The flexible metal hose products include BOA FLEX, BOA B1 SUPRA, BOA B2 DUO, BOA PARRAP, BOA PARNOR, BOA HP, BOA THP, Cryogenic Connectors, Crimp-Tite, Vacuum Connectors and Bellows, Tori Light, and Tori Medium. 

stainless steel fabrication

There are a lot of choices when it comes stainless steel fabrication Shaw Fab was founded in 1979 so their quality products have kept them in the business, it goes right along with their mission statement "Our goal is to deliver quality stainless steel products on-time at competitive prices." Just how a mission statement should be short and to the point focusing on a quality product.

Take a look at their stainless steel fabrication page for some examples of their custom work.  Their fabrication services include custom cutting, plasma cutting, laser cutting, polishing, grinding, welding & threading. Shaw can also produce short run and production run parts. They offer all types of stainless steel polishing services including mechanical & high purity electropolishing. Custom cutting & laser cutting capabilities include the cutting of different shapes, sizes & density of materials to specifications. Threading services include threading ends, fittings, & full lengths of pipe to specifications.

If you are looking for stainless pipe fabrication then you are in the right spot. Shaw Stainless & Alloy Piping’s pipe fabrication division ensures that each project meets customer specifications, from accuracy to cost-effectiveness, to quality and on-time delivery. Their controlled work environment provides efficient productivity, quality assurance / quality control, and safety. Their experienced craftsmen provide on-time construction to minimize lost production with versatile responsiveness.

Flexible Metal Hose

American Boa is a manufacturer of  flexible metal hoses and a member of National Association of Hose and Accessories Distributors (NAHAD). Utilizing "State of the Art" manufacturing techniques, American BOA offers superior flexing solutions. Metal hoses are available in a variety of 300 series stainless steels and high nickel alloys, from 3/16" thru 12" nominal inside diameters.
American Boa offers a great guide to help with the selection of flexible metal hoses along with specific flexibile metal hoses.
Here is a summary of American BOA from the about page:

Organization
The company was incorporated in 1956 and began operations in New York and New Jersey. The company relocated and consolidated operations in 1981 in Cumming, GA.

American BOA is a subsidiary of BOA BKT Gmbh. The BOA group consists of 20 subsidiaries and other major shareholdings across the world.

Business
Design, manufacture and market products where flexibility, thermal growth or vibration are the primary concern.  Primary products manufactured include: Flexible Metal Hoses, Cryogenic & Vacuum Connectors, Engine Exhaust Bellows, Metal Bellows Expansion Joints, Automotive Decoupling Joints, Instrument Bellows and Specialized Fabrications.

Markets Served
All major industrialized manufacturing processes that require piping and changes in temperature utilize our services and products: Automotive, Power Generation, Cryogenics/Industrial Gases, Solar, Engine Manufacturers, OEM's, Steel Mills/Metals, Vacuum Technology, Chemical/Petrochemical, Water/Waste Water and many more.

RTV Silicones

RTV SILICONE
• 1 Part Acetoxy Cure
    HIGH PERFOMANCE / HIGH STRENGTH
    GENERAL & SPECIALTY
• 1 Part Neutral
    NON CORROSIVE
    HIGH PERFORMANCE
    GENERAL PURPOSE
• 2 Part Alkoxy ( Condensation ) Cure
     GENERAL PURPOSE
     HIGH PERFORMANCE
• 2 Part Catalyst
• 2 Part Additon Cure
    LOW TEMP PERFORMANCE
    UL94 V-O AND SPECIALTY
• Thermally Conductive
    1 PART CONDENSATION CURE
    1 PART ADDITION CURE
     2 PART ADDITION CURE
• Silicone Gels
   GELS 2 PART ADDITION CURE
   GELS 1 PART ADDITION CURE.
   GELS - 2 PART CLEAR ADDITION CURE
• Encapsulants
• Mold Making Silicones
  MOLD MAKING SILICONES
  ACCESSORY PRODUCTS
  PRIMERS & ADDITIVES
  2 PART ADDITION CURE PAGE 1
  2 PART ADDITION CURE PAGE 2


Food Contact Applications For Silicone Rubber Compounds
 
Several Momentive Performance Materials RTV silicone rubber compounds can be evaluated for food contact applications where FDA, USDA and NSF regulations apply.
FDA STATUS
The following one-part RTV silicone rubber compounds may be used in repeated contact with foods under FDA regulation 21CFR177.2600 “Rubber Articles Intended for Repeated Use” (and, by reference, 21CFR175.300 “Resins and Polymeric Coatings”).

The Use of these Sealants is Subject to the Following Conditions: The sealant must be applied in accordance with good manufacturing practices at a thickness not to exceed 6mm (1/4”) from an exposed edge, and as a continuous film between joints acting as a functional barrier between the food and the substrate (the area underneath the joint).

The sealant must be cured for a minimum of 14 days at 25°C (77°F) and 50% RH. The sealant must be thoroughly cleansed before the first use.

The sealant, when properly cured, must comply with the extractives limitations at temperatures up to and including reflux applications. The user should verify compliance with extractives limitations at higher temperatures.

Compliance with 21CFR177.2600 does not authorize use of these sealants for the manufacture of baby bottle nipples.

All previously mentioned sealants must be evaluated to determine bond strength for each specific application. If greater adhesion is required, the evaluation of primer
SS4044 (clear) is recommended. SS4044 may be used in repeated contact with food under 21CFR175.105 “Adhesives” and used in conjunction with the RTV products covered under 21CFR177.2600.

Spindle Repair Facilities

Here is a slideshow showing off Atlanta Precision Spindles state of the art facilities.

 

Spindle Repair Facilities from David Chamberlain

Spindle Repair

Spindle Repair

Atlanta Precision Spindles offers the highest quality Spindle Repair Service on the market today. Since January 1994, we have provided superior service to our customers and have assisted them in achieving their goals. Our many years of experience and commitment to excellence have earned us the reputation as the best Spindle Repair Service in the area. We Service many customers throughout the USA, Canada and Mexico. Our technical expertise and customer service is unmatched in the industry. If you want your Spindle repaired in a timely fashion and priced competitively, call Atlanta Precision Spindles, LLC and we will be happy to assist you. This video details the inspection and re qualification process. Tim is your guide and an expert in spindle repair. He gives specific detail on the process and how precise the spindle re qualification process is.