RECOMMENDED FOR: Rotary applications on work over rigs and slim hole or seismograph rigs designed to operate at a maximum of 1,500 to
5,000 PSI rated working pressure depending on size. Applications on small or medium–size drilling rigs used for water
well operations, water well core drill, blast or shot hole operations. For normal mud applications on small to
medium–sized rigs where flexible connections are needed for pressure lines conveying mud.
TEMPERATURE: –40°F to +180°F (–40°C to +82°C) continuous service.
CONSTRUCTION: Tube: Type C (Nitrile). Black.
Reinforcement: High tensile steel wire.
Cover: Type A (Chloroprene). Black with yellow stripe. All sizes are perforated.
Design Factor: 2.5:1
COUPLINGS: 1 1/4" I.D. 5,000 psi. Gates 20GS–20MPAPI (7347–76955)
1" I.D. 5,000 psi. Gates 16GS–16MPLH (7347–76545)
2 1/2", 3" and 4" – Swaged–On Permanent Couplings – API threads on connecting end of stem for easy flange
attachment. Strong collar to anchor ferrule to stem. Electroplated steel. Also available in stainless steel and other
special metals. Wildman Type Q reusable couplings.
4" – Use George Myer Stem and Ferrule.
71 Permanent (Mulconroy – API threads only) or reusable male couplings (Wildman – API threads only). 77 Gates GSM
with Integral 2" Fig. 1502 Hammer Unions or 80 Gates GSP (1 1/2" or 2" only). Reference the Hose Coupling Section.
For GS couplings reference Gates Hydraulic Hose catalog #35093.
Sources: Dixon Valve and Coupling Co., George Myer Co, Inc.
STANDARDS: Tube: ARPM (Class A) High oil–resistance.
Cover: Meets MSHA Flame–resistant.

细孔钻，地震钻软管，输送水，泥浆。