Ball Check Valves
Maxi-Check
High-Pressure, Low-Pressure, and Dual-Function Check/Isolation Models


Prevent Reverse Flow
Isolation Valves for High Pressure
Bray’s SlurryTuff™ brand includes the MAXI-CHECK line of ball check valves and ball check isolation valves. Available in high pressure high wear, low pressure &low wear and dual function check/isolation models. They are designed to prevent reverse flow, and in the case of the Model I, prevent reverse flow with isolation.

Specifications
Purpose
Non Return & Isolation
Type
Ball check & Ball check isolation
Size Range
DN 80 to DN 750 / NPS 3 to 30
Figures Available
MH0300 to MH2800
Rating
ANSI B16.5 Class 150/300/600 & 900 @ 65°C (150°F) Nominal
Ends
ASME B16.5, DIN
Body-Inlet
Fabricated carbon steel standard other materials on request
Body-outlet
Fabricated carbon steel standard other materials on request
Ball Materials
Urethane coated metal core
Seal
Moulded ntural rubber as required
Gasket
BS‐N90 90 shore O ring between body and outlet flange for high pressure seal
Fasteners
Carbon steel galvanised high tensile 8.8 standard or stainless steel on request
Face to Face
On request
Testing Standard
AS 4037-1999 / EN 12266 Pt 1 & 2 / API 598
applications
Slurry pipelines, Power plant ash disposal, Mine dewatering, Pipelines with scale, Cement plant, Pulp & paper, Water & wastewater, High pressure pipelines
Downloads
Product Brochure
Ball Check Valves / Isolation Valve Slurrytuff™ Maxi-Check
Download
English
More Details
Features & Benefits
Engineered for slurry service, MAXI-CHECK operating features include:
- Full bore design: Provides unrestricted flow ensuring low pressure loss and minimum back pressure to seal
- Large port: Prevents clogging
- High-wear resistant seat and ball design: Offers large sealing area, to provide drip-tight sealing under all conditions
- Sinking ball design: Preferred for applications involving viscous liquids or slurries
- Self-cleaning: The ball rotates during operation eliminating the risk of impurities adhering to the ball
- Fabricated design: Low weight and allows for inline repairs
- Operation: suitable for horizontal or vertical application
Explore More Bray Insights
Learn Even More About How Bray’s Solutions Can Impact Your Business
Copper Mining, Mineral Processing, Refining & Production
Copper Mining
Bray valves, actuators, controls and accessories are engineered to deliver reliable service for copper mining, copper concentrates production, smelting and electrolysis around the world.
Explorer Now
Explore Bray's Innovative Solutions for Efficient, Reliable Operations in the Copper Mining Process
Coal Mining Virtual Plant
Explore our Virtual Coal Mining Plant and discover more about our Bray Solutions.
Copper Mining Industry Solutions
Optimized Valves for Metals & Mining
Solutions for Mining Industry
Our durable valves, actuators, and controls are built for challenging mining and refining processes, handling abrasive, corrosive chemicals in aluminum, copper, gold, and more.
Explore Our Mining Products-copy.webp)