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Rhino Series 45

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  • Rhino Series 45
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Rhino Series 45

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Product Description

A versatile valve, comparable to the RB series. This three-piece valve has threaded or socket weld ends, but carries an ANSI 600 operation range. 

The Series 45 valve is a three-piece design, offering maximum ease of installation and serviceability in systems where unions and ease of access to lines are necessary. The design allows the center section to swing completely free of the ends without having to cut the piping or disturb the line's integrity. This provides for the maintenance of seats, seals, and ball done right in the existing line. The fully encapsulated body bolts assure proper alignment during reassembly.

This design allows the Series 45 to double as a union, eliminating the need for a separate connection. The simplicity of installation and maintenance makes this valve ideal for several uses, including chemicals, oil and gas production, refining, transmission, textiles, pulp and paper, pharmaceuticals,and food and beverage industries.


The design of Rhino Valves allows flow pressure in both directions which is transferred to the floating ball. Then, this is pressed against the downstream seat, resulting in a bubble tight sealing. The resilient seats patented by Rhino allow relief the pressure to the upstream seat against the ball, resulting a low torque of operation and a long, soft operation even with high differential pressures. This low torque characteristic permits a smaller actuator operation, resulting in lower cost. The seats also acts as a ball stripper, as it removes any adhered material to ball for a better sealing.


The stem is designed for both safety and a long, leak-tight service life. Inserted from the bottom through the cavity, it rests securely against an interior body shoulder.

The stem is held in place by a live loaded retaining system, featuring opposing Belleville washers. These flex in response to thermal expansions and contractions and maintain effective sealing pressure as they compensate for normal stem seal wear. The seal can also be easily adjusted in-line by the accessible stem nut. In series 400 and 600, a stem nut retaining clip holds the nut in place and prevents backing off, particularly in high cycle actuated services. In series 152 a CHEVRON® type external stem seal is provided.


The operating torque of the ball valve is influenced by a number of factors which has to be considered to size a valve for actuation.

These factors are divided in Design (type and material of valve seats), and application (pressure, media and frequency of operation).

The torque shown is in function of the pressure, as the friction between the floating ball and the seat is higher as the pressure is incremented.

Note: Our charts were made for reduced port valves (except for Series 152, which can be read directly). If you want to find the torque of a full port valve, please look for the curve of the next higher size, for example if you want to know the torque of a 1" fill port valve, you have to see the 1 1/4" valve readout.

For more information please see the Documentation below.

Additional Information

Documentation Rhino_Series_45.pdf (928 KB)

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