HMA Flow & Industrial uses Val-Matic Surge Buster® check valves to reduce slam noise

15 October 2020
HMA Flow & Industrial uses Val-Matic Surge Buster® check valves to reduce slam noise
Document Downloads 
application/msword iconHMA Flow & Industrial uses Val-Matic Surge Buster check valves to reduce slam noise_final50.5 KBDownload
PreviewHMA Flow & Industrial supplies a range of Val-Matic Surge Buster check valves939.51 KBDownload

The range of unrivalled and proven Val-Matic Surge Buster® check valve from HMA Flow & Industrial was specified as a result. It features a 100% flow area for improved flow characteristics and lower head loss. The unrestricted flow area, combined with smooth streamlined contouring, allows passage of large solids, minimising the potential for clogging. The one-piece precision-moulded disc is steel and nylon reinforced to provide years of trouble-free performance. It is backed by a 25-year warranty for the flex portion of the disc.

The Memory-Flex™ disc and the Disc Accelerator™ are the only moving parts. There is no packing, mechanical hinges, pivot pins or bearings that can wear out, while the hinge portion of the disc is guaranteed for 25 years. The synthetic reinforced disc, with its integral O-ring type seal design, assures positive seating at high and low pressures.

A full-size top-access port allows for removal of the disc without removing the valve from the line and provides flushing action over the valve disc for clog-free performance. The access cover includes a drilled and tapped port for installation of an optional Disc Position Indicator. The Val-Matic Surge Buster® from HMA Flow & Industrial is AWWA C508 certified, NSF/ANSI 61 certified for drinking water, and NSF/ANSI 372 certified lead-free.

HMA Flow & Industrial supplied two DN375 Surge Buster valves from its warehouse. Upon installation, the valves were put to the test, with vastly improved results. The slam noise reduced the dB level from 93 dB to 68 dB instantly, translating into a 27% reduction in slam that effectively solved the problem.


Notes to the editor
To download hi-res images for this release, please visit and click the HMA Group link to view the company’s press office.

About HMA Group
Established in 1966, Halley & Mellowes represents an impressive list of internationally respected companies and manufactures under licence to a number of these companies. We also manufacture a range of products and equipment developed and designed by our own engineers. The HMA Group manufactures, services, and sells a range of capital plant equipment to a diverse range of industries. This includes the mining sector, minerals processing, materials handling, power generation, petrochemicals, and oil & gas.

HMA Flow & Industrial Contact
Mark Cartwright

General Manager
Tel: +61 2 4389 6143
Email: mcartwright [at] hmagrp [dot] com [dot] au

Media Contact
Renay Tandy

NGAGE Marketing
Tel: (011) 867-7763
Cell: 082 562 5088
Email: renay [at] ngage [dot] co [dot] za

Browse the NGAGE Media Zone for more client press releases and photographs at http:/