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Level Switch Level Site®  
Level Switch
UNS-MS or VA 1/8 NPT-BN25(formerly BLS-1700)
Top/Bottom mounted single stage switching for shallow tanks and containers. Brass or stainless steel stem with Buna-N float.
UNS-VA 1/8 NPT-VA27 (formerly BLS 1750)
Top/Bottom mounted single stage switching for shallow tanks and containers. Stainless steel stem and float.
UNS-MS 1/4 NPT-BN30 (formerly BLS-1900)
Top/Bottom mounted single stage switching for rugged service, high viscosity liquid applications. Brass stem, Buna-N float.
UNS-VA 1/4 NPT-VA52 (formerly BLS 1950)
Top/Bottom mounted single stage switching with stainless steel stem and float. High current contact rating switch.
UNS-PA or PP (formerly BLS-7)
Side mounted for general level measurement and switching.
UNS-VA/SB5 or SB4 (formerly Series Bilge)
Marine approved Bilge level switch with slosh shield. Stainless steel switch for lateral mounting applications.
UNS 1000 Series (formerly BLS 700)
Top mounted Multi-Stage. Up to 5 independent switch points and 220 psig.
UNS 2000 Series (formerly BLS 800)
Top mounted Multi-Stage. Up to 6 independent switch points and 580 psig.
Dual Purpose Temperature/Level Switch (formerly BLS 810)
Contact Factory
Cross Reference Sheet for Level Switch Products
Old ordering numbers cross-referenced with the new level switch product numbers.
Level Site®
Mini-Levelsite
Alloy, pressure to 350 psig
Levelsite
Alloy, pressure to 1000 psig