Contracor PBT-2, Руководство пользователя

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6
ENGLISH
CONTRACOR
®
Version 5.0
3. Introduction. Setup and Operation.
Air Requirements
3.1 Introduction
The PBT-2 is a rugged, portable, high-production tool for blast cleaning the internal surface
of steel pipe. Its carriage adjusts for cleaning pipe from 12
″ (300mm) to 36 ″ (900mm)
inside diameter.
The PBT-2 is a pneumatic tool that is used as an accessory to a standard blast machine.
Compressed air powers an air motor for control of the blast head rotation speed allowing
infinite flexibility for varying degrees of contamination of the steel surface.
The tool can be used with nozzles PBN-5.0 to PBN-9.5 and requires a minimum of 1¼ ″ ID
blast hose.
3.2 Setup
The PBT-2 Blast tool attaches to the end of a pipe lance or blast hose in place of a standard
nozzle. The compressor and air supply lines must be sized to support a blast operation
at the pressure and air capacity shown in Paragraph 3.4.
The blast machine should have a minimum of 1¼ ″ piping. Minimum size blast hose or pipe
lance is as follows:
PBN-5.0 to PBN-8.0 nozzles use a 1¼
″ I.D. blast hose or lance
PBN-9.5 and larger orifice nozzles use a 1½ ″ I.D. blast hose or lance
Smaller diameter hose and lance could cause premature wear on the tool.
A ball valve is provided on the air motor inlet to adjust air motor speed.
An additional ½
″ ID air hose is required to connect compressed air to the air motor.
A 20-micron filter should be installed in the air motor inlet path to remove dirt from the air
stream.
The PBT-2 Blast tool has a CFT-2 sandblast coupling connection for the pipe lance or blast
hose.
Attach to the pipe lance or blast hose a CFT, CQP or CQT coupling to connect it to the PBT-2
Blast tool.