Model No: A73501809

Edwards A73501809 Gas Ballast Adaptor

Condition: New

Fits nXDS-i and nXDS-ic Dry Scroll Vacuum Pumps.

Quantity :

US $380.00

US $120.00 To via UPS Estimated Delivery on 3-14

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Edwards A73501809 Gas Ballast Adaptor

This gas ballast adaptor is designed for the Edwards nXDS series dry scroll vacuum pumps, replacing the standard gas ballast control. It enables the connection of a controlled inert gas supply, such as nitrogen, into the low vacuum stage of the pump.

Key Features

Safe Dilution: Dilutes flammable gases to a safe concentration level (Edwards recommends below 1/4 of the Lower Explosive Limit)
Condensation Prevention: Inert gas purging reduces the risk of condensable vapors (e.g., iodine) depositing in the pump’s exhaust stage
Wide Compatibility: Suitable for nXDS6i / 10i / 15i / 20i pump models

Technical Specifications

Parameter	Value
Max Supply Pressure	1.5 bar (absolute)
Gas Flow Rate	0.5 L/min
Seal	Includes O-ring (19.6 ID × 2.4)

Installation Overview

Installation requires removal of the fan cowl, original gas ballast assembly, and seals. A new O-ring is included. A vacuum leak check is recommended after installation, and proper fan operation should be verified.

Applications

Ideal for processes requiring inert gas purge, such as:

Gas recirculation systems
Noble gas applications
Handling corrosive or condensable vapors

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