Brochure
Catalog OEM-1, Couplings / Page 19
5700 Series One-Shot™ Brass Couplings
Parker’s 5700 one-shot brass couplings
allow for easy installation of pre-charged
systems and provide nearly full flow
when completely connected. Applica-
tions typically include split air condition-
ing systems, split heat pumps, manufac-
tured homes, and pre-charged line sets.
Application
Split air conditioning systems
Split heat pumps
Manufactured homes
Base Product Part
Number
5780 Female coupling half
without charge port
5781 Female coupling half
with charge port
5782 Male coupling half
without charge port
5783 Male coupling half with charge port
Features and Benefits
Single-use coupling contains a diaphragm
that is pierced upon connection and fold-
ed back into the coupling to provide a high
flow path and low pressure drop.
Final metal-to-metal seal prevents air
inclusion.
Brass coupling provides corrosion
resistance.
Brass sweat connections and panel-
mounting options are available for the
unique needs of a unit.
Male/female charge ports can be included
for easy system diagnostics.
Stub kits (FD57) are also available with
copper connections.
Compatible with all refrigerants
RoHS compliant
Disconnected operating pressure: vacu-
um to 700 psi. Connected minimum burst
pressure: 2100 psi.
Agency Approvals
UL listed; File No: SA7511
Pressure Drop
Comparison
The graphs below show signicant reduc-
tion in pressure drop and associated ef-
ciency gains utilizing Parker 5700 Series
Couplings vs. standard base valves.