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The SPARC Nitrogen flow indicator provides extremely low pressure, precision gas flow control for nitrogen purging applications. This is important during the brazing of copper tubing in air conditioning and refrigeration systems. The nitrogen must be flowing to displace the oxygen inside the tubing during the brazing process, thus preventing internal oxidation and the resulting scale. Scale build-up inside the tubing can cause blockage in the TXV and within the air conditioning and refrigeration system. This results in premature failure.
SPARC\'s Nitrogen flow indicator uses a float ball to visually confirm the nitrogen is flowing. This is essential during the brazing of copper tubing in HVAC systems. During this process, a technician is able to first flush the copper lines at 25-35 CFH and then reduce the flow to 3-4 CFH. This process greatly aids in conserving and saving nitrogen. If the ball does not rise in the tube, there is no flow of nitrogen. There is only static pressure. The oxygen is not displacing.
50 PSI Inlet PressureThe maximum inlet pressure is 50 PSI. This product must connect to a nitrogen regulator with a 1/4\" male flare outlet connection (SPARC SP00021 – sold separately). This is to control the nitrogen gas pressure. It is compatible with UNIWELD RHP400, RHP500, RHP750, and similar style regulators as well. SPARC\'s nitrogen flow indicator has a 0-75CFH flow output at 50 PSI.
Simple ConnectionsSPARC\'s Nitrogen Flow indicator has a 1/4\" SAE female flare inlet connection, as well as a 1/4\" SAE male flare outlet connection.
Safety is a Top PriorityBecause SPARC is able to provide extremely low flow with high precision gas control, this nitrogen flow indicator is extremely safe to use. On top of that, an over-pressure safety relief rupture disk has been installed in the product to keep all customers safe.
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Shipping & PaymentsClick the Shipping & Payments tab above the listing description for more info
PaymentAccepted Payment Methods
Immediate payment is required upon selecting \"Buy It Now\" or upon checking out through the cart.
We accept payment via U.S. PayPal accounts and all Major Credit Cards, Debit Cards & Google Pay.
We are legally required to collect sales tax in those states and localities where we maintain a physical presence (nexus).
The applicable amount of sales tax charged to an order will be calculated based on the shipment destination\'s state and local sales tax laws.
Thank you for shopping with us on !
ReturnsReturns are accepted
Items must be returned within 14 days of the sale ending
Buyer will pay for return shipping.
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