Page 95 - ParkerQuickCouplingCatalog38002010

Quick Coupling Division
8145 Lewis Road • Minneapolis, MN 55427
www.parker.com/quickcouplings B-51
Hydraulic Quick Couplings
B
Hydraulics
High Flow Couplings
ST Series
Applications
The Parker ST Series are non-valved couplings for applications
where maximum flow is required. Their smooth, open bore
offers the lowest pressure drop of any quick coupling design
and is ideal for applications such as high-pressure water and
steam washers, carpet cleaners and mold coolant lines and
many other non-valved applications.
Specifications
Body Size (in.) 1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2
Rated Pressure (PSI)
Brass Cplr/Npl 2500 5200 2700 2200 1700 1200 1700 1400
Brass Cplr/Steel Npl 2600 5500 3500 2700 2700 2000 – –
SS Cplr/Npl 4200 6700 5500 3000 3000 1700 – –
Rated Flow 3 6 12 12 28 50 76 100
Temperature Range (std seals) -40° to +250°F
Performance
ST Series (3/4", 1", 1-1/4")
Test Fluid: Oil - 150 SUS
0
1
2
3
4
5
0 20 40 60 80 100
Flow in USGPM
Pressure Drop in PSID
3/4"
1"
1-1/4"
ST Series (1/8", 1/4", 3/8", 1/2")
Test Fluid: Oil - 150 SUS
0
2
4
6
8
10
12
0 2 4 6 8 10 12 14 16 18
Flow in USGPM
Pressure Drop in PSID
1/8"
1/4"
3/8" 1/2"