Branch pipes

Cleaning pipe of the PZ

A pipe for cleaning the bottom of tanks storing waterlogged oil — removing product residues and raw water.

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PZ
Description

Purpose and design

The PP pipe is used to clean the bottoms of tanks intended for storing watered oil — through it, product residues and raw water are removed, which cannot be pumped out through the main intake and transfer pipe. It is installed in the lower belt on the tank wall.

It is available in two versions: PZ — receiving and stripping pipes are connected by welding during installation; ПЗ1 — by flange connection. Standard size range — DN 80, 100, 150, 200, 250, 300 mm. To connect the equipment to the pipe, you will need a set of KOF counter flanges of the appropriate diameter — to be ordered separately.

Parameters

Technical specifications

TypeStripping pipe
PurposeRemoval of product residues and waste water when cleaning the bottom
VersionsPP (welded joint during installation), ПЗ1 (flanged)
Standard sizesDN 80, 100, 150, 200, 250, 300 mm
Installation locationLower belt on the tank wall (for watered oil)
To orderSet of counter flanges COF — separately
VersionU/UHL, placement category 1 for ГОСТ 15150-69
Questions

Frequently asked questions

How does the cleaning pipe of the PP differ from the receiving and distributing PP?
The PPR is located above the minimum filling level and serves for regular product intake and delivery. The PZ is installed specifically for complete cleaning — through it, what remains at the bottom after the main pumping is drained: product residues and raw water.
When should I take the execution of the PZ, and when ПЗ1?
PZ — if the pipe will be connected by welding at the installation site; ПЗ1 — if a flange connection is needed, for example, for subsequent maintenance without welding. The choice depends on the installation technology adopted at the facility.
Why do I need a code?
A set of KOF counter flanges is a flange with fasteners for connecting a pipeline or shut—off valves of the required diameter to the pipe of the PZ. The PZ is not included in the basic delivery, it is ordered separately for the required remote control.
How often do I need to clean the tank bottom?
The frequency is determined by the regulations for the operation of the tank and the water content of the stored product — usually cleaning is carried out during scheduled technical inspections of the tank.

Need: a cleaning spigot?

Specify the remote control, the design (ПЗ/ПЗ1) and the tank parameters — we will select and prepare the control unit.

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