VWR® SG-900 Semiautomatic Switchover Manifolds for Noncorrosive Gases

About this item

The SG-900 system is designed to prevent the depletion of gas during testing and to eliminate the downtime required to change empty cylinders.

Automatic switch to reserve gas cylinder
Easy to refill cylinders without interrupting work
Chrome-plated brass construction
Reverse flow check valves

The manifold will automatically switch gas supply from the primary cylinder to a reserve cylinder when the primary supply is depleted

The manifold is chrome-plated brass. All pigtails have a reverse flow check valve to prevent back flow of gas while changing cylinders. The outlet fitting on the delivery regulator is 0.64 cm (¹/₄") NPT female pipe.

This occurs when the pressure on the primary gauge drops to approximately 160psi. The switch is completed by turning a lever to designate the reserve cylinder as the now operational primary cylinder. The process may be repeated as often as necessary to maintain smooth and uninterupted testing procedures, and cylinder refills can be accomplished without work stoppage.

Ordering information: Manifolds include a delivery pressure regulator, wall bracket, and two 61 cm (24") pigtails with reverse flow check valves (fasteners not included).

Restricted Products: To process your orders without delay, please provide the required business documentation to purchase this product.

To order chemicals, medical devices, or other restricted products please provide ID that includes your business name & shipping address via email [email protected] or fax 484.881.5997 referencing your VWR account number. Acceptable forms of ID are:

• State issued document with your organization's Federal Tax ID Number
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• City or County issued Business License
• State Department of Health Services License
• Any other ID issued by the State that includes the business name & address

* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. Avantor will not lift restrictions for residential shipping addresses.