BLS Series Pneumatic Limit Switch Box for Pneumatic Valves

Reliable Limit Switch Box for Valve Position Monitoring

BLS series limit switch box are primary a rotary position indication device designed to integrate valve and NAMUR rotary pneumatic actuator with a variety of mounting options, internal switches or sensors and configurations.

The BLS series limit switch box provides accurate, real-time feedback on valve position for critical process control and safety systems.

product details

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Product Documents

BELEF Limit Switch Box BLS series.pdf
English

Limit Switch Box FEATURE

Bolts visual position indicator secure waterproof.

Solid and beautiful design aluminum die-casting housing and powder coated.

Quick-set cam spring loaded splined cam no need to adjust again after initial setting easy setting without tool.

Multi point terminal strip Standard 8 point and enough strips for connection.

Dual cable entries 2*1/2NPT 2*3/4PF.

Easy mounting NAMUR standard stainless steel shaft and bracket.

Production Specification

BLS100 series are specially designed suitable for small size pneumatic actuator and valves to reduce installation space, but provides high performance by equipping a variety of switches and sensors.

SPECIFICATION	Standard	Option
Enclosure	Explosion proof Ex d IIB T6, IP67, O-ring sealed	IP 68
Outside coating	Epoxy-Polyester outside against corrosion	Nylon CoatingSpecial color Coating
Ambient temperature	-20℃~+80℃	Higher(~100℃) and lower (-40℃~) temperature
Cable entries	2 - PF3/4", other standard threads	(NPT3/4", PF3/4", M25x1.5)
Terminal block	8 nos of terminal strips (6 for switches, 2 for solenoid valve power)
Position indicator	Dome type 0°~90°	0°~180° Others
Mounting bracket	Stainless steel acc. to VDI/VDE3845NAMUR,
Switches(Sensors)	2-SPDT mechanical switch(Form C)	Proximity sensorsOthers

BLS 300 series are designed suitable for valve and actuators in hazardous area application, having compact but rubust construction conforms to EN50014 and 50018, also suitable in Zone 1 and 2, and ingress protection IP67 Standard aluminum housing provides reliable explosion proof performance.

SPECIFICATION	Standard	Option
Enclosure	Weather proof IP67, O-ring sealed	IP 68
Outside coating	Epoxy-Polyester inside and outside against corrosion	Nylon CoatingSpecial color Coating
Ambient temperature	-20℃~+80℃	Higher(~+100℃) and lower (-40℃~) temperature
Cable entries	2 - PT1/2", other standard threads	(NPT1/2", PF1/2", M20x1.5 and PG13.5)
Terminal block	8 nos of terminal strips (6 for switches, 2 for solenoid valve power)
Position indicator	Dome type 0°~90°	0°~180° Others
Mounting bracket	Stainless steel acc. to VDI/VDE3845, NAMUR,
Switches(Sensors)	2-SPDT mechanical switch(Form C) as standard	Proximity sensors(Autonics),Others