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Heathrow Scientific 85 mL Vacuum/Pressure Bulb | HS20631B Default Title Heathrow Scientific
Heathrow Scientific 85 mL Vacuum/Pressure Bulb | HS20631B Default Title Heathrow Scientific

Heathrow Scientific 85 mL Vacuum/Pressure Bulb | HS20631B

$20.00

    Provide manual gas movement for sampling or apparatus work with an 85 mL natural-rubber bulb. Two rubber valves and PVC connections are built into this heavy-wall format.

    • 85 mL bulb volume; natural rubber
    • Two rubber valves with PVC connections
    • Supplied individually; tubing is not included

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Manual gas handling, not a measuring device

Provide manual gas movement for sampling or apparatus work with an 85 mL natural-rubber bulb. Two rubber valves and PVC connections are built into this heavy-wall format.

Heathrow Scientific 85 mL Vacuum/Pressure Bulb | HS20631B — Manual gas handling, not a measuring device
Manufacturer view shows the bulb alone and with tubing. Tubing is not supplied.

Manual gas handling, not a measuring device

HS20631B is intended for gas sampling and for pumping gas through apparatus. The heavy-wall natural-rubber body is the hand-operated part of the arrangement, while the two valves and PVC connections provide the interfaces. The 85 mL figure describes bulb volume; it should not be treated as a calibrated dose, specified flow rate or pressure rating.

Choose the tubing connection before ordering

The manufacturer lists a 7.4 mm hole diameter, an overall length of 106 mm and an outer diameter of 52 mm. Compare the actual connection geometry with the tubing and apparatus you intend to use. Tubing is not supplied. Leave a comfortable route for the line so the bulb can be operated without pulling on a glass connection.

Match materials to the gas path

Natural rubber and PVC are the named materials in this assembly. Review both against the gas, vapour, temperature and cleaning procedure in your application. The product description does not establish universal chemical compatibility. For a sensitive gas path, make the material review part of selection rather than assuming every flexible bulb is interchangeable.

Distinguish a gas bulb from a pipette filler

A pressure/vacuum bulb and a pipette filler solve different handling tasks. Choose this model for the stated gas-moving applications. If the intended job is filling and dispensing from a laboratory pipette, select a filler or controller designed for that task, with the appropriate pipette connection and operating controls. This order is one black HS20631B bulb.

Confirm the order unit

HS20631B — 1 Each.

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Frequently Asked Questions

What does this bulb do?

It provides manual gas movement for sampling or pumping gas through apparatus.

Is 85 mL a calibrated delivery volume?

No calibrated delivery volume is specified. The published figure is the bulb volume.

What are the materials?

The bulb is natural rubber, with two rubber valves and PVC connections.

Is tubing included?

No. Tubing is not supplied with HS20631B.

What connection size is listed?

The manufacturer lists a 7.4 mm hole diameter. Confirm the actual tubing fit for your apparatus.

Can it be used with any gas or solvent vapour?

Do not assume universal compatibility. Check the intended gas path against natural rubber and PVC.

Is this a pipette controller?

No. It is a vacuum/pressure bulb for gas-handling applications, not a calibrated pipette controller.

    SpecificationDetail
    BrandHeathrow Scientific
    Catalog numberHS20631B
    Bulb materialNatural rubber
    Valves and connectionsTwo rubber valves; PVC connections
    Volume85 mL
    Length × outer diameter106 × 52 mm
    Hole diameter7.4 mm
    ColorBlack
    Order unit1 Each; tubing not supplied

    Ordering Information

    Cat. No.DescriptionPack
    HS20631B85 mL Vacuum/Pressure Bulb | HS20631B1 Each

    Heathrow Scientific: Shipping, Returns & Manufacturer Support

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    Shipping & Availability

    Shipping charges, available delivery methods and any delivery estimate are confirmed with your Blue Tiger Scientific order or quote. Contact Blue Tiger Scientific before ordering if you need a particular delivery date or special shipping arrangements. Supplier availability and carrier schedules can affect fulfillment; a delivery estimate is not a guaranteed arrival date.

    Returns Through Blue Tiger Scientific

    Start every return, exchange or order-related issue with Blue Tiger Scientific. Provide your order number, product catalog number, quantity and the reason for your request. For damage, missing items or an incorrect item, retain the packaging and include photographs where applicable.

    Do not send goods to Blue Tiger Scientific or Heathrow Scientific without return authorization and shipping instructions from Blue Tiger Scientific. We will coordinate any required manufacturer Return Goods Authorization (RGA). Return eligibility, any applicable charges and the approved shipping destination will be confirmed for your specific request before you ship. Keep the product, original packaging and supplied materials together while your request is reviewed.

    Manufacturer Warranty & Service

    Heathrow Scientific handles manufacturer warranty assessments, product service and other manufacturer-specific technical matters. Blue Tiger Scientific can help coordinate these requests and provide purchase documentation. If a return is required, arrange it through Blue Tiger Scientific before shipping.

    Coverage is subject to the manufacturer’s applicable terms for this specific product. Published equipment warranty periods should not be assumed to apply to this labware or consumable. No product-specific warranty duration is stated here. Retain your invoice or proof of purchase for any manufacturer review.

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