Product Description
Range of Models
All models are bi-directional and available with either mechanically operated signal flags, electrical auto resetting switches or mechanical and electrical signals in combination. Installation on a vertical pipe is possible but must be specified. Model options and codes are:
M = Mechanical Flag
E = Electrical Switch
F = Flange Mounting
W = Welded Base
V = Valve Model
X = Extension Model (state length)
Non-valved Models
M-W E-W ME-W
M-F E-F ME-F
M-W-X E-W-X ME-W-X
M-F-X E-F-X ME-F-X
Under Pressure Removal Models
All the above models can be supplied suitable for removal under line pressure. The code reference is prefixed with V to denote the valve
V-M-W V-E-W V-ME-W
V-M-F V-E-F V-ME-F
V-M-W-X V-E-W-X V-ME-W-X
V-M-F-X V-E-F-X V-ME-F-X
Operating Capabilities
The Pigalert is made in three pressure: classifications--- up to ANSI Class 600, for ANSI Class 900, and for ANSI Class 1500. A range of high pressure Pigalert models above Class 1500 rating are available.
Standard models are designed for use at temperatures from -20 centigrade degree to +200 centigrade degree, dependent upon the line products and pressure. Alternative elastomeric seals can be provided for operating temperatures outside this range.
Installation
Base or flange welded to the line pipe or vessel.
A 39mm diameter access through the line pipe or vessel is required
Buried Pipelines
Extended length Pigalert model can be installed on below ground pipelines with the signalling devices mounted above-ground.
Materials
All wet parts material in accordance with NACE Standard MR-01-75 / ISO 15156
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