Swivel Joint 3443 Series, Aluminium for Loading Arms

The Swivel Joint 3443 Series is an Elbow used as standard on our variable reach top loading arms. This model is available in two configurations giving the loading arm either a parallel secondary arm or a 15º offset for improved drainage.

EWFM Specialise in Swivel Joints, Loading and Unloading Arms, Couplings, Breakaway Couplings, Filling and Emptying Equipment, Hose, Agitators and Mixers, Access Systems, Storage Tank Equipment and Aircraft and Helicopter Equipment for the Oil & Gas, Food and Drink, Chemical, Pharmaceutical, Power Generation and the Defensive and Aviation Industries.

• Available sizes
  • 3?, 4?
• Standard design
  • Aluminium construction
• Assemblies
  • Supplied in style 40 as standard. Other options may also be available on request.
• Applications
  • Top Loading Arms

Standard Spesifications

Specifications for swivel joints include size, operating temperature, cold working pressure, torque drag, and end connection. Common inch-based sizes include: 3/4, 1, 1 1/4, 1 1/2, 2, 3, 4, 6, 8, 10, and 12 inches. Products with a longer radius provide less vibration and reduced abrasion in corrosive, high-rate pumping applications. Operating temperature is usually specified as a range. Cold working pressure is measured in pounds per square inch (psi). Torque drag is a measure of the swivel joint’s resistance to rotation. There are many different end connections for swivel joints. Some products are designed as threaded, beveled, or flanged. Other feature union fittings and male or female pipe threads. Split flange fittings and products such as a gas swivel joint may carry additional specifications.

Number of Planes and Materials of Construction

A number of planes and materials of construction are additional parameters to consider when specifying swivel joints. Single-plane swivel joints allow hoses to pivot in order to reduce mechanical stress from bending, stretching, and twisting. Products that transmit fluid through rotating manifolds are also available. With these swivel joints, a rotary seal between the stationary and rotating parts of the manifold contains the pressurized fluid, but allows relative rotation between the two halves. Seal materials include nitrile, food-grade nitrile, fluoroelastomer, polytetrafluoroethylene (PTFE), Kalrez. (DuPont), and Chemraz? (Green and Tweed). Choices for body material include aluminum, bronze, ductile iron, fabricated steel, fabricated stainless steel, and cast stainless steel. Swivel joints that are made of proprietary materials such as Hastelloy (Haynes Intl.) and Monel (Special Metals Corp.) are also available.

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Source: www.ewfm.co.uk