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 Bottom vs. Top OPW Loading Arm

When your company requires the use of any vehicle utilizing an OPW loading arm you may at times have the option of bottom vs. top arm. Keep in mind that a bottom loading arm is always going to offer more … Continue reading

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A Kamvalok Fitting For Any Installation

SwivelJoints carries a Kamvalok fitting that will work in just about any application you need. Fittings are available in a range of types, sizes and materials. They provide leak-proof connections at pressures up to 10,000 psi due to being engineered … Continue reading

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A Spring Loaded Coupler

The Kamvalok coupling is built by OPW Engineering Systems and is a dry-disconnect coupling with a quick connect and disconnect feature. This is a spring loaded coupler with a built-in valve. The internal adapter contains a poppet that is spring … Continue reading

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Connecting with Dry Disconnect Couplers

The standard of the industry of disconnect couplers are the OPW Kamvalok® Dry Disconnect Couplers. OPW Kamvaloks® are used at liquid transfer points where product loss could occur. They provide a reliable solution to prevent spillage during connection or disconnection. … Continue reading

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Types of Couplers

Couplers are necessary components of many different industries. They’re used to connect two shafts together for the transmission of power. Positive couplers can be used to transmit rotary power from one shaft to another, where both shafts turn. The use … Continue reading

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Most Popular Kamvalok Fittings

The Kamvalok fittings we stock are one of the most popular cam-and-groove couplers in the industry. These fittings have an exclusive twin-kam arm design that features a unique detent position and a built-in valve with a spring-loaded poppet that automatically … Continue reading

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Railroad Related Items

We have a full range of railroad related items besides our popular railcar loading arms. The ‘Heads Up’ Railcar Motion Detector is a new safety siren designed to give rail yard workers a warning if a car starts to move. … Continue reading

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Ordering Swivel Joints

If you’re looking for OPW swivel joints for your application you’ll love our online configuration tool at SwivelJoints.com. It makes finding the right OPW swivel joints for your application easy. If you have a part number it’s even easier. There … Continue reading

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Carrying a Wide Range of Loading Arms

We are a leading provider of OPW loading arms in the U.S. Our experience with OPW loading arms allows us to walk clients through every step of the design process from swing arm style to dimensions and materials. We will … Continue reading

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Vapor Recovery Dry Disconnect Coupling

The OPW 2173AVN Vapor Recovery Dry Disconnect Coupling provides for easy access in recovering vapors for either top or bottom loading/unloading tank truck operations. The OPW 2173AVN Dry Disconnect Coupling installs onto the QRB valve on tank trailers and can … Continue reading

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