B-Series Switches–Pressure Differential Pressure Hydraulic

Adjustable setpoints 15-100% of range

Fixed or limited adjustable deadband

Wide selection of switch elements 

Explosion proof enclosure provides uncompromising protection

Special designs for NACE & fire applications

SIL 3 Capable (B and D series only)

TYPICAL USES

Offshore oil rigs

Chemical and petrochemical plants

Pulp and paper mills

Steel mills

Power plants

Water and sewage-treatment plants

Other corrosive environments

•Highly reliable

•Designed for use in wide range of applications

•Pressure ranges from vacuum to 7,500 psi

Pressure & Differential Pressure Switches

B-Series pressure, differential pressure and vacuum switches use two different actuators depending on setpoint require-ments.For setpoints between 2 and 3000 psi, the simple,rugged diaphragm-sealed piston actuator is used. This design features high reliability and choice of actuator seal materi-als for virtually every application. An optional welded designis also available for setpoints up to 1000 psi for maximum reliability. This design is available in 316 Stainless steel or Monel®. Differential pressure models use a unique, dual dia-phragm-sealed piston design that features very high static operating pressures and small size.

For setpoints between 4.5 and 150 inches of H,O, a large dia-phragm is used for increased sensitivity in both pressure and differential pressure designs with good choice of materials of construction.

All standard models feature +1 percent of range setpoint repeatability and a minimum of 400 percent of range proof pressures.

These standard designs perform well in applications where shock and vibration could be a problem and may be used in conjunction with Ashcroft diaphragm seals in extreme services such as slurries or abrasive process fluids.

Applications include: pumps, compressors, washers, filters degreasers, evaporators, recovery systems, food processing ground support equipment, reverse osmosis systems, heat exchangers,hydraulic systems, lubrication systems, marine equipment, textile machinery, heating and air conditioning equipment.