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​​​​​​​​​​​​​​Since January 2016 the Newman Hattersley products have been manufactured by IMI Bopp & Reuther using the original Hattersley Newman Hender and Newman Hattersley Ltd. drawings.  IMI Bopp & Reuther has been a global supplier of valves into the Nuclear Power Market for over 50 years.  They have implemented and maintained nuclear certifications including CSA N285.0; ASME V, N, NV, UV and NPT; CSA Z299; ISCIR; KTA; SCC.​

​IMI Newman Hattersley has over 60 years' experience working with nuclear plants around the world. We have developed proven, advanced valve technologies to meet the demanding performance and safety requirements of next-generation nuclear power reactors. Based in Canada, IMI NH supplies a range of products for CANDU nuclear reactors around the world.​

Critical applications

  • Nuclear
    IMI NH valves can be found on applications on the nuclear side of PHWR, PWR, GCR and BWR nuclear reactor designs, where isolation of potentially lethal media is essential. Our valves are successfully working in Emergency Cooling Water systems, Primary Heat Transfer systems and Fuelling machines. The high performance valves have a robust design, with a service life of 40 years or more. As most applications are inside containment, they are manufactured in accordance with the ASME III Nuclear Code.

Key technologies

  • Bellows Sealed Globe Valves
    The Bellows Sealed Globe Valves provide a true hermetic valve through the use of a bellows internally and seal welds on all eternal joints. This prevents any harmful chemicals from being released into the atmosphere. The bellows themselves are multi-ply, welded seam construction from Inconel 625 material, for long life. Flexible metallic bellows replace the function of the conventional gland, reducing maintenance and operating costs. By welding the metallic bellows to the stem and bonnet, we ensure zero leakage through the gland, preventing the release of harmful chemicals. 

  • 3 Piece Ball Valve
    The 3-piece design means any part of the valve can be maintained without being removed completely from the line. The valve has a highly polished ball to provide tight shut off, the floating ball design preloads the valve seat, and the line pressure provides the force needed to create a bubble tight shut-off at all pressures. 

  • Butterfly valve
    The double offset design provides low operating torque, requiring a smaller actuator, which can be manual, pneumatic or electric. The robust design ensures consistent operation and reduced maintenance, while the wafer style design reduces weight in the pipeline.

IMI in Action

IMI CCI participates at regional VPP Safety Summit
08 June 2018
Largest Romanian customer recommends IMI Remosa
10 May 2018
Lean success in IMI Critical back office functions
04 May 2018
Isolation valves adapted for Fluidised Catalytic Cracking applications
30 April 2018
IMI Critical Korea closes in on world-class LEAN performance
27 April 2018
IMI board tours IMI Critical businesses
25 April 2018
New positioner software tools from IMI STI
08 February 2018
Launch of Zero Backlash Scotch Yoke Mechanism
16 January 2018
IMI Critical Korea certified to sell actuators in Europe
20 September 2017
IMI Critical named ‘supplier of the year’ by Korea’s Doosan
19 September 2017
100th Valve Doctor graduates from IMI Critical
13 September 2017
Top HSE certification for IMI Critical’s California site
12 September 2017
Launch of High Endurance Actuator
21 April 2017
Launch of AB6350 valve
06 April 2017
Launch of 100DPC Multi-trim
17 March 2017
Launch of 840GS control valve
22 December 2016
IMI Critical to exhibit new technology at ADIPEC 2016
25 October 2016
New graduates join IMI Critical in four countries
22 September 2016
IMI Critical to take stand at ONS 2016 in Norway
16 August 2016
IMI Critical opens new China plant in Qingpu
27 July 2016
IMI CCI Korea celebrates 2,000 days of no “Lost Time Accident”
25 July 2016
Visit to IMI Z&J Germany by the Russian Economic Bureau from Bonn
11 July 2016
IMI Z&J Düren moves into modern offices
08 July 2016
IMI Critical Engineering forms strategic partnership with MRC Solberg & Andersen
05 April 2016
IMI Way Day 2016 date announced
01 March 2016
NEW IMI Eye – fourth edition
26 February 2016
IMI Critical co-locates China businesses
20 January 2016
IMI CCI Switzerland gains certification for new generation safety valves
18 December 2015
IMI Critical rise to Dragon challenge
30 November 2015
IMI STI achieves CRCC approval for new products
24 November 2015
IMI Truflo Marine Attend the Engineering Technology and Innovation Exhibition 2015
23 November 2015
IMI CCI Sweden secures new contracts on three continents
23 November 2015
IMI Critical Engineering appoints new petrochemicals head
05 November 2015
IMI CCI Czech Republic gains ‘Safe Enterprise’ certification
03 November 2015
IMI Critical announces 90mRMB investment in China
29 October 2015
IMI CCI SriCity wins regional safety award
27 October 2015
Key clients attend grand opening of new Aberdeen facility
23 October 2015
IMI companies ‘act as one’ to deliver for customer
02 October 2015
IMI CCI Sri City approved by NTPC
01 October 2015
IMI Critical Engineering showcases innovation at Valve World Expo Asia
28 September 2015
Nexen awards IMI Orton
25 September 2015
IMI Critical Engineering celebrates opening of new Jubail repair centre
23 September 2015
IMI Critical and IMI Precision join forces at Valve World Expo + Conference Asia 2015
21 September 2015
IMI Critical Engineering opening of new Jubail Repair Centre
18 September 2015
IMI CCI India manufactures first 1050MW turbine bypass valve
20 May 2015
Largest ever contract for IMI Critical Engineering
18 February 2015
New Houston facility opens
12 February 2015
IMI Critical completes acquisition of Bopp + Reuther
02 January 2015
IMI Critical takes family of brands to Valve World 2014
11 December 2014
IMI STI doubles size of Italian plant
20 October 2014

Fast Facts

Founded:

1955

Joined IMI:

2006

Employees:​

3

Installed base:

19,000+ valves / 1,300+ other products

Certs:

N/A

Locations:

Canada ​

Contacts


Global sales:​
T: +1 905 678 1240E: iminh.sales@imi-critical.com​
Our locations​​​​

Downloads




IMI_NH_Profile.pdf​​
IMI NH