Page 43 - 2022FittingsCatalog

STRAIGHT-THROUGH PRESSURE WASH COUPLINGS
These manual connect and disconnect couplings are commonly Temperature Range: -20°C (-4°F) to 125°C (257°F).
used in fluid transfer applications where unrestricted flow and Interchange: Coilhose ST, Foster ST, Perfecting E, Parker ST,
high operating pressures are desired. In ⁄2" size these couplers Holmbury HF.
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are also gaining popularity for glycol connections to drive units of
progressive cavity jack pumps. Couplers are machined from solid
brass or 303 stainless steel bar stock and come standard with
buna-N (Nitrile) seals. Stainless steel balls, retaining rings, and
springs provide maximum service life. Plugs are machined from
solid brass, steel, or 303 stainless steel bar stock. Steel plugs are
hardened and zinc plated for maximum service life.

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Part Body Thread Part Body Thread
Number Size Size Number Size Size
BRASS MALE PIPE COUPLER PLATED STEEL MALE NIPPLE Quick Couplings
CST1B 1 ⁄8" 1 ⁄8" CPST1 1 ⁄8" 1 ⁄8"
CST3B 1 ⁄4" 1 ⁄4" CPST3 1 ⁄4" 1 ⁄4"
CST5B 3 ⁄8" 3 ⁄8" CPST5 3 ⁄8" 3 ⁄8"
CST7B 1 ⁄2" 1 ⁄2" CPST7 1 ⁄2" 1 ⁄2"
CST9B 3 ⁄4" 3 ⁄4" CPST9 3 ⁄4" 3 ⁄4"
CST11B 1" 1" CPST11 1" 1"
STAINLESS STEEL MALE PIPE COUPLER BRASS MALE NIPPLE

CST1SS 1 ⁄8" 1 ⁄8" CPST1B 1 1 ⁄8" 1 1 ⁄8"
CST3SS 1 ⁄4" 1 ⁄4" CPST3B 3 ⁄4" 3 ⁄4"
CST5SS 3 ⁄8" 3 ⁄8" CPST5B ⁄8" ⁄8"
CST7SS 1 ⁄2" 1 ⁄2" CPST7B 1 ⁄2" 1 ⁄2"
CPST9B 3 ⁄4" 3 ⁄4"
BRASS FEMALE PIPE COUPLER CPST11B 1" 1"

CST2B 1 ⁄8" 1 ⁄8" STAINLESS STEEL MALE NIPPLE
CST4B 1 ⁄4" 1 ⁄4" 1 1
CST6B 3 ⁄8" 3 ⁄8" CPST1SS 1 ⁄8" 1 ⁄8"
CST8B 1 ⁄2" 1 ⁄2" CPST3SS 3 ⁄4" 3 ⁄4"
⁄8"
CPST5SS
⁄8"
CST10B 3 ⁄4" 3 ⁄4" 1 1
CST12B 1" 1" CPST7SS ⁄2" ⁄2"
PLATED STEEL FEMALE NIPPLE
STAINLESS STEEL FEMALE PIPE COUPLER
CPST2 1 ⁄8" 1 ⁄8"
CST2SS 1 ⁄8" 1 ⁄8" CPST4 1 ⁄4" 1 ⁄4"
CST4SS 1 ⁄4" 1 ⁄4" CPST6 3 ⁄8" 3 ⁄8"
CST6SS 3 ⁄8" 3 ⁄8" CPST8 1 ⁄2" 1 ⁄2"
CST8SS 1 ⁄2" 1 ⁄2" 3 3
CPST10 ⁄4" ⁄4"
CPST12 1" 1"
BRASS HOSE BARB COUPLER
BRASS FEMALE NIPPLE
CSTH6B 3 ⁄8" 3 ⁄8"
CSTH8B 1 ⁄2" 1 ⁄2" CPST2B 1 ⁄8" 1 ⁄8"
CSTH10B 3 ⁄4" 3 ⁄4" CPST4B 1 ⁄4" 1 ⁄4"
CSTH12B 1" 1" CPST6B 3 ⁄8" 3 ⁄8"
CPST8B 1 ⁄2" 1 ⁄2"
G11 REPLACEMENT O-RINGS CPST10B 3 ⁄4" 3 ⁄4"
CPST12B 1" 1"
Coupler Size Material
G11-N70-110 1 ⁄4" Nitrile STAINLESS STEEL FEMALE NIPPLE
G11-N70-112 3 ⁄8" Nitrile 1 1
G11-N70-114 1 ⁄2" Nitrile CPST2SS ⁄8" ⁄8"
CPST4SS 1 ⁄4" 1 ⁄4"
G11-V-110 1 ⁄4" FPM (Viton®) CPST6SS 3 1 ⁄8" 3 1 ⁄8"
G11-V-112 3 ⁄8" FPM (Viton®) CPST8SS ⁄2" ⁄2"
G11-V-114 1 ⁄2" FPM (Viton®)
Nitrile o-rings are rated for use up to 130°C (266°F)
FPM (Viton®) o-rings are rated up to 200°C (392°F)

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