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1. FEATURES - DESIGN - HOW IT WORKS
NRP thanks you for the purchase of your new two stage vacuum pump, the GVP, which has been
specifically designed for air conditioning and refrigeration service. This new design together with
the latest technology allows you to get a high quality vacuum and fast thorough evacuatiuon.
This pump consists of the following features:
Isolation valve: allows the pump to be isolated from the system in which vacuum is being
produced, so possible leaks can be detected.
Double intake connections: the isolation valve has a tee connection with a 1/4"FLARE and
3/8"FLARE ports so any type of manifold can be connected. The port which is not in use has a cap
with an o'ring to prevent leakage.
Sure-grip handle: ergonomic design handle to allow a sure grip during carrying.
Gas ballast: it allows a small quantity of air to be introduced into the pump preventing
condensation of moisture vapor and helping maintain the purity of the pumps oil. Also the use of
the gas ballast improves the pump's operating efficiency.
High vacuum rating: the two-stage design provides a higher and more complete evacuation
assuring the moisture is removed, meanwhile the high flow reduces the vacuum time.
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National Refrigeration Products
www.nrproducts.com - Bensalem, PA 19020
985 Wheeler Way - Langhorne, PA 19047
PHONE: (215) 638 8909 - FAX: (215) 638 9270
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