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Installation, Operation and Maintenance Manual -
Original Version
AVK Series 870 Plunger Valve
AVK series 870 is a plunger control valve which in some areas also is called a needle
valve in the industry for inline applications of regulation. Unlike butterfly or gate valves
assuming only fully open or shut off functions, plunger valves are designed to operate
in between and fulfil control functions (pressure and flow) in water supply systems.
The design holds a single-piece body of fusion bonded epoxy coated ductile iron
(above DN150) or stainless steel (up to DN150 and DN400, DN600). All internal
components are made of either stainless steel or bronze materials that guarantee
good anti-corrosion properties and a long lifetime.
DN200-600
DN80-150
DN400, 600
Page 1 of 20
Copyright © AVK Holding A/S, original version, rev. 11, 08-Mar-2022
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Table of Contents
Related Manuals for AVK DN400
Summarization of Contents
Installation and Commissioning
General Safety Instructions
Provides general safety guidelines for valve installation, emphasizing checks and handling.
Operation and Maintenance
Operation
Covers operational requirements, local authorities, product life cycle, pressure/temperature, visual inspection, and function checks.
Maintenance
Details general instructions, gear/actuator operation, inspection intervals, and repair of parts.
Repair of Parts
Provides instructions on replacing O-rings in seal housing and main rubber seal/O-ring in retaining ring.
Disposal and Recycling
Guidance on the proper removal, separation, and disposal of valves at the end of their life cycle.
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