Specifications

I-3
TECHNICAL
40,000 PSI
TECHNICAL
www.waterblast.com
HIGH PRESSURE (HP)
CONNECTION TYPES
• Widely regarded as the industry standard connection for
pressures from 30,000 to 60,000 psi (2,069 to 4,138 bar).
• Rated working pressure is dependent upon inner
diameter bore size of tubing used. See HP Lance
connection specs for rated working pressure of high
pressure tubing.
• Connections exist in two different forms:
1. Used to connect high pressure tubing with a conical
male seat and left-handed threads to a female port
using a gland nut and left-hand threaded collar.
2. For many high pressure male ttings, the geometry
of the gland, collar, and tubing is combined into one
component that connects directly to a high pressure
female port (Single Piece Style).
• Suitable for repetitive connection/disconnection.
CONNECTION INSTRUCTIONS
1. 3 pc. Male Connection Style only—Liberally apply anti-
seize to male tubing threads to prevent thread galling.
2. 3 pc. Male Connection Style only—Slide gland nut over
tubing and thread collar (left-hand threaded) onto tubing
until it is past the rst one or two full threads of the tubing.
3. Both styles—Liberally apply anti-seize to male connection
threads and male cone.
4. Both Styles—Install male connection into female port and
tighten according to torque specication in chart above.
*For three-piece connection styles only.
SIZE
CONNECTION
THREAD
COMMON
NAME
TUBING THREAD*
LEFT-HAND
RECOMMENDED
TORQUE
ft-lbs N-m
1/4" HP 9/16" - 18UNF HP4 1/4" - 28UNF 25 34
3/8" HP 3/4" - 16UNF HP6 3/8" - 24UNF 50 68
9/16" HP 1 1/8” - 12UNF HP9 9/16" - 18UNF 75 102
ACTUAL SIZE REFERENCE CHART
Note: Always apply thread lubricant (anti-seize) to male threads before assembling
High Pressure connections to help prevent galling of threads. Coning and
Threading tools available. See page I-8.