Installation Instructions, Maintenance

INSTALLATION INSTRUCTIONS

Tube (initial assembly):

1.Ensure the tube end is square and free from burrs, nicks, scratches and debris.

2.Loosen the NUT by turning it counter-clockwise one turn. Insert the tube though the NUT and FERRULES until it sits against the internal VALVE SHOULDER. Tighten the NUT (clock-wise) hand tight. Continue tightening the NUT with a wrench for 1 to 1-1/4 turns or until snug.

Note: for re-assembly, after initial assembly, approximately 1/4 turn with wrench is generally required to re-tighten.

MAINTENANCE

The BV70 Series utilizes our self compensating stem seal design. This design automatically compen- sates for wear as well as thermal expansion and contraction resulting in a leak tight, maintenance free, service life.

Once the stem seal has worn beyond the compensation afforded by the Belleville springs adjustment of the stem nut may enable valve to be returned to service. Holding the ‘flats’ of the stem, tighten the stem nut until Belleville springs become fully compressed (flattened); the torque required to tighten the nut further increases sharply when this point is reached. Do not tighten the stem nut beyond this point to avoid damage of the stem seal.

DIMENSIONS

Tube		Dimensions - Inches
Size OD
Size OD	A	B	C	D	E	F
1/4	3.72	1.58	.50	2.31	.19	9/16
3/8	3.70	1.58	.50	2.31	.28	11/16
1/2	3.94	1.58	.50	2.31	.36	7/8
3/4	4.17	1.67	.59	3.41	.49	1-1/8
1	4.92	1.91	.75	3.41	.62	1-1/2

BV70 specifications

Omega Engineering is renowned for developing advanced measurement and control solutions, and its BV70 series represents a pinnacle in flow measurement technology. The BV70 is a versatile variable area flow meter, known for its reliability and precision in various industrial applications.

One of the standout features of the BV70 is its robust design, which allows it to measure a wide range of fluid types, including liquids and gases. This makes it ideal for industries such as chemical processing, water treatment, and food manufacturing, where accurate flow measurement is critical. The BV70 is designed to handle high pressures and temperatures, enhancing its versatility and ensuring it can perform in demanding environments.

The BV70 utilizes a variable area measurement principle, which provides a high level of accuracy and repeatability. This design incorporates a tapered tube that allows the flow rate to be determined by the position of a float within the tube. As the flow rate increases, the float rises, and the measurement is taken based on the float's position. This mechanical design eliminates the need for external power sources, making it a reliable choice for various operational settings.

Among its technological features, the BV70 integrates an easy-to-read dial for direct reading of flow rates. This design enhances operational efficiency by allowing users to monitor flow rates at a glance, promoting quick decision-making. The flow meter is also equipped with various connection options, including threaded, flanged, or tri-clamp fittings, ensuring compatibility with existing piping systems.

Moreover, the BV70 is designed for easy installation and maintenance, significantly reducing downtime. Its materials of construction are selected for compatibility with numerous fluids, including corrosive substances, making it a favored choice across different sectors.

In addition, the BV70's modular design allows for easy calibration and adaptation to specific process requirements. This flexibility ensures that users can tailor the flow meter to their unique operational needs, enhancing overall performance.

In summary, the Omega Engineering BV70 flow meter stands out for its durability, accuracy, and user-friendly features. With its ability to measure various fluids under challenging conditions, it is an indispensable tool for industries seeking reliable and precise flow measurement solutions. Its innovative design and advanced technologies solidify its status as a leader in flow measurement instrumentation.