B-67
Parker Hannifin Corporation
Quick Coupling Division
Minneapolis, MN
www.parker.com/quickcouplings
B
Hydraulics
The rugged 75 Series is designed and constructed for high
pressure hydraulic service. Although these couplings are used
in a broad variety of heavy duty applications, a primary usage is
in oil fields and offshore drilling. Available in sizes 3/4” through
4”,
in steel or stainless steel construction.
Features:
•
Connect under residual pressure
•
Thread-to-connect
•
Up to 5,000 psi (345 bar) rated pressures
•
Rugged steel construction with Zinc Trivalent
Chromate plating
•
Stainless steel construction also available
•
Wide range of sizes
•
Nitrile is standard seal material, other options available
•
DBP version is “Fire Safe” rated to API 16D
Applications include:
•
Cranes
•
Power tongs
•
Horizontal boring and dewatering
Burst pressures listed were taken at the point at which failure rendered the quick-disconnect inoperative. (Proof pressure equals 1-1/2 times the operating pressure).
NOTE:
Pressure Ratings were established under static pressure conditions.
For impulse applications, multiply the above pressure ratings by .6 for approximate pressure ratings.
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Contact QCD
75
Series Pressure Ratings
Body
Size
Maximum Working Pressure (psi)
Steel Only
Minimum Burst Pressure (psi)
Steel Only
Maximum Working Pressure (psi)
316
Stainless (Connected Only)
3/4
5000
20000
3000
1
5000
20000
3000
1-1/4
5000
15000
3000
1-1/2
5000
15000
3000
2
5000
15000
3000
2-1/2
3000
6000
-
3
3000
6000
-
4
400
1000
-
75
Series Specifications
Body Size
3/4
1
1-1/4
1-1/2
2
2-1/2
3
4
Spillage (cc)
8
16
31
64
141
204
320
400
Air Inclusion (cc)
12
25
48
98
205
368
480
610
Snap-tite 75 Series
Threaded Connection
Poppet valves, high pressure
Hydraulic Quick Couplings
Connect Under Pressure