BS2-Bellows-Sealed Valves

Introduction

Hikelok BS2 series bellows-sealed valves enhance reliability, versatility, and safety—with a secondary containment system that prevents leaks to atmosphere even if the primary seal fails.Working pressure is up to 2500 psig (172 bar),working temperature is from -20℉ to 1200℉ (-28℃ to 649℃ ). Isolate system fluids and achieve reliable, leak-tight performance with Hikelok BS2 series bellows-sealed valves which use a packless design and a gasketed or welded seal. They are ideal for applications where the seal to atmosphere is critical, and we offer multiple options for general and high-purity service.

Features

Upper packing provides secondary containment system above the bellows
Hydraulic-formed multilayer bellows enhanced cycle life
Nonrotating stem tip eliminates galling within the seat area
Strictly controlled bellows stroke to improve safety and cycle life
Replaceable bellows and stem assembly
Regulating, conical, and spherical stem tips available
Panel, bottom, and side mounting available
Double lock-pins enable steady and durable fastening of the handle
Handle color options are available
Every Hikelok bellows-sealed valve is factory tested with helium to a maximum leak rate of 4×10-9 std cm3/s at the seat, envelope and all seals

Advantages

Stainless steel actuator is hardened for strength and wear resistance
Hydraulic-formed multilayer bellows enhanced cycle life
Acme power transmission threads enable low operating torque
Upper packing provides secondary containment as backup to primary seal
Strictly controlled bellows stroke to improve safety and cycle life
Double lock-pins enable steady and durable fastening of the handle
100% factory tested

More Options

Optional standard material,PCTFE,stellite tip material
Optional spherical,regulating,conical tip type
Optional blue, black,red,green handles
Optional aluminum bar,stainless steel bar handles