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    Project Description

    HSG01 sight glasses

    purple HSG01

    The HSG01 range of sight glasses are designed to fit directly onto ASME BPE clamp fittings using a conventional seal and clamp. The unique fused glass and stainless steel construction provides a strong and resilient solution for sight glass applications in a wide range of services. Where illumination is required, a version is available with a back light.

    Size range1-1/2″ – 4″ ASME BPE compliant clamp connections
    Material316L stainless steel
    Pressure rating1-1/2″, 2″ & 2-1/2″ – 16 barg
    3″ & 4″ – 10 barg
    OptionsDisc design with borosilicate or soda lime window
    C22 alloy glass surround
    The HSG01 can be used on Staitech’s range of Tank Weld Flanges
    Back lit version available for use on vessels and crosses
    Literature
    HSG02 sight glasses

    purple HSG02

    Designed for application where through vision is required, HSG02 sight glasses comprise of 316L stainless steel body with toughened borosilicate glass lens and a range of FDA and USP Class VI compliant seals. All units have clamp ends, are rated to 10 barg with wetted surfaces finished to 0.5 microns Ra.

    Size range1/2″ – 4″ ASME BPE compliant clamp connections
    Material316L stainless steel
    Pressure rating10 barg
    OptionsDN8 – DN50 DIN & ISO clamp connections
    Back light illumination
    Polycarbonate knock shield
    Low ferrite stainless steel and other alloys
    Several seal options available
    Enhanced surface finish and electropolishing
    Literature
    HSG03 sight glasses

    purple HSG03

    Similar in design to the HSG02, the HSG03 is also intended for applications where through vision is required. Being of bolted construction the HSG03 can be used in applications where twisting within the piping system may be possible. The HSG03 range of sight glasses are available with both clamp and weld end connections.

    Size range1/2″ – 4″ ASME BPE compliant clamp & weld connections
    DN8 – DN50 DIN, ISO clamp & weld connections
    Material316L stainless steel
    Pressure rating10 barg
    OptionsBack light illumination
    Polycarbonate knock shield
    Low ferrite stainless steel and other alloys
    Several seal options available
    Enhanced surface finish and electropolishing
    Literature
    HSG04 sight glasses

    purple HSG04

    The HSG04 has an unobstructed viewing aperture allowing through vision from any angle. Wetted parts are 316L stainless steel with toughened borosilicate glass viewing lens and a range of FDA and USP Class VI compliant seals. Alternative lengths are also available with this design.

    Size range1/2″ – 4″ ASME BPE compliant clamp & weld connections
    DN8 – DN50 DIN, ISO clamp & weld connections
    Material316L stainless steel
    Pressure rating10 barg
    OptionsPolycarbonate knock shield
    Low ferrite stainless steel and other alloys
    Threaded connections
    Several seal options available
    Enhanced surface finish and electropolishing
    Literature
    HSG05 sight glasses

    purple HSG05

    The HSG05 is a tubular design allowing through vision from any angle and is available with either DIN or ASNI flanged connections.

    Size range1/2″ – 4″ DIN & ANSI flanged connections
    Material316L stainless steel
    Pressure rating10 barg
    OptionsPolycarbonate knock shield
    Other materials available
    Several seal options available
    Alternative lengths
    Literature
    Flanged sight glasses

    purple Single & Double Window Sight Glasses

    A range of single and double window sight glasses for general purpose applications. Available in a wide range of sizes and pressure ratings, with DIN and ANSI flanged connections.

    Size range1/2″ – 8″ DIN & ANSI flanged connections
    1/2″ – 2″ screwed connections
    Material316L stainless steel
    Pressure ratingUp to 40 barg
    OptionsBorosilicate and Sodalime glass
    PTFE seals
    Flow indicator (spinner)
    Literature
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