10
PI-197
January 2022
13. After use, drain, coil and store lance properly. Be sure safety tags
remain intact.
RIGID TUBE CLEANING LANCES
1. Read General Safety
section and Nozzle Safety Warnings prior to
connecting rigid lances.
2. Do not use a rigid lance with a burst rating less that 3.0 times the
pressure at which it will operate. 10,000 psi operating pressure rigid
lances must have a minimum 30,000 psi burst rating. Do not use a
rigid lance that has an unknown burst or unknown manufacturer’s
operating pressure rating.
3.
Clearance between lance and tube must be sufficient to permit the
unrestricted backflow of water and debris. With tubes containing hard
deposits this clearance should be 1/8” minimum on the diameter (or
1/16” per side) of the lance. With tubes containing soft, pliable deposits
this clearance should be greater. Insufficient side clearance may cause
lance to blow back toward operator.
4. Be sure nozzle, lance and adapter thread sizes are compatible before
installing nozzle and adapter on lance. Do not use a rigid lance that has
damaged or missing threads.
5.
Use wrench flats (when available) or a properly adjusted smooth jaw
plier wrench (JS PN 64119) to connect lance. Do not use pipe wrench as
wrench marks will cause high pressure components to crack and fail.
6. A rigid lance over 4 ft long requires two men for support and safe
operation. Operator at tube should use a foot control gun so he can
instantly relieve system pressure in case of emergency.
7. When using and moving lance, support it in a manner to avoid
stress and possible breakage at inlet end connection.
8. Never ”ramrod” lance into tube blockage.
9. Transport and store lances in tubes or racks to avoid bending,
corrosion or other damage. Damaged lances (bends, mars) should be
removed from service.