Bray Tank series full-port tank-bottom ball valves include TK7000, TK8000, and TKF15. Featuring stainless steel or carbon steel valve bodies, stainless steel balls and stems, and modified TFM seats, they provide zero-leakage sealing. Available with threaded, welded, flanged, and sanitary clamp connections, they are designed for discharge, drainage, and vent shutoff at the bottom of reactors, pressure vessels, and process storage tanks.
Tank Series tank bottom ball valve product image
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Bray Tank Series Full-Port Tank Bottom Ball Valves
Full-port tank bottom ball valves with multiple end connection options
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Model confirmation
Confirm model, connection and key options before ordering.
After-sales support
After-sales communication support is provided according to the order agreement.
Specifications
- Nominal Size Range
- TK7000/TK8000: NPS 1 to 6; TKF15: NPS 2½ to 10
- Maximum Allowable Operating Pressure
- TK7000/TK8000: NPS 1 to 4, 1000 psi WOG; NPS 6 to 10, 400 psi WOG/ANSI Class 150; TKF15: 316SS, 275 psi; WCB, 285 psi
- Valve Body Construction
- TKF15: two-piece; TK7000/TK8000: three-piece swing-out body
- Bore Type
- Full port
- Sealing Class
- Zero leakage
- Valve Body Material
- Stainless steel, carbon steel
- Ball Material
- Stainless steel
- Stem Material
- Stainless steel
- Seat Material
- Modified TFM
- End Connections
- Threaded, socket weld, butt weld, ANSI 150 flanged, quick clamp (sanitary), tube OD; extended socket weld, extended butt weld, pipe end/extended pipe end available
- Mounting Flange
- Integrally cast top mounting flange
- Testing Standard
- API 598
- Certifications
- CRN, PED, PE(S)R
Application scenarios
Bottom Reactor Discharge and Drainage
Used at the bottom discharge or drain point of reactors to remove the process medium from the tank after processing is complete. The Tank series features full-port ball valves with zero-leakage sealing; the three-piece swing-body design of TK7000/TK8000 supports in-line cleaning and maintenance.
Bottom Pressure Vessel Drainage and Isolation
Used at the bottom drain or liquid discharge point of pressure vessels to remove the medium from the vessel and provide reliable isolation when not draining. Product documentation specifies that the valves are designed for bottom drainage applications on pressure vessels and storage tanks, with zero-leakage sealing and a top mounting flange for convenient actuator installation.
Bottom Drainage of Large Process Storage Tanks
TKF15 can be used at the bottom discharge or drain point of large process storage tanks to remove the medium from the lowest point of the tank. This model features a two-piece design, with flush-welded connections to the tank bottom and piping flange connections, and is available in nominal sizes from NPS 2½ to 10.
Bottom Discharge of Process Tanks with Sanitary Connections
When configured with sanitary quick clamps or tube OD end connections, TK7000/TK8000 can be used in bottom discharge piping for process tanks. The full-port design facilitates medium discharge, while the three-piece swing-body design supports in-line cleaning and maintenance.
Selection points
Full-port tank-bottom drain design
The Tank series features a full-port flow path for bottom-drain applications on autoclaves, reactors, pressure vessels, and storage tanks, enabling fast and unobstructed discharge of tank media.
Integrally cast top actuator mounting flange
The Tank series features an integrally cast top mounting flange to simplify actuator installation.
Three-piece trunnion valve body of TK7000/TK8000 for in-line maintenance
TK7000 and TK8000 feature a three-piece trunnion valve body design that supports in-line cleaning and maintenance.
Multiple end-connection options for TK7000/TK8000
The three-piece TK7000/TK8000 models are available with threaded, socket-weld, butt-weld, ANSI 150 flanged, sanitary quick-clamp, and tube-OD end connections.
Installation & maintenance notes
Confirm compatibility with the tank bottom and end-connection configuration
Before installation, confirm that the selected Tank series valve model, tank-bottom connection structure, and end-connection configuration match the design of the tank and piping. TKF15 can use a flush-to-tank-bottom welded connection or an ASME B16.5 piping flange connection; TK7000/TK8000 must be installed according to the configured flange, threaded, socket-weld, butt-weld, quick-clamp, or piping end-connection type.
Match the actuator to the top mounting flange
When configuring the actuator, install it using the valve's integrally cast top mounting flange and confirm that the actuator mounting interface matches the valve model and specifications.
FAQ
What is the operating principle of Tank Series valves, and how do they achieve zero-leakage sealing?
Tank Series valves feature a high-pressure design and achieve sealing performance through zero-leakage sealing and continuously preloaded packing. The valve body is integrated with the flange, simplifying actuator installation and reducing potential leakage points to ensure reliability in bottom-discharge applications for autoclaves, reactors, and storage tanks. Specific configurations must be confirmed according to the actual model.
What are the main differences in end connections between TKF15 and TK7000/TK8000?
TKF15 is a two-piece, full-port ball valve offering flat-bottom weld connections to tank bottoms and ASME B16.5 flanged connections. TK7000/TK8000 are three-piece ball valves with multiple end connection options, including flanged, threaded, socket weld, butt weld, and quick clamp connections, providing greater installation and maintenance flexibility. Final selection depends on the actual model and end connection requirements.
What are the maximum operating pressure range and size range for this series?
TK7000/TK8000 are available in sizes NPS 1 to 6, while TKF15 is available in sizes NPS 2½ to 10. Maximum allowable operating pressure varies by model and must be confirmed according to the actual model and nominal diameter.
What are the key material and sealing performance features of this valve series?
Valve bodies are available in stainless steel or carbon steel, stems and balls are stainless steel, and seats are made of modified TFM. The valves feature zero-leakage sealing and continuously preloaded packing, making them suitable for industrial applications requiring highly reliable sealing. Specific material combinations must be confirmed according to the actual model.
Is support available for in-line cleaning and maintenance, and what are the key installation and maintenance considerations?
The three-piece design of TK7000/TK8000 supports in-line cleaning and in-line maintenance for convenient field servicing. Key considerations include selecting suitable end connections, correctly mating the mounting flange, following the manufacturer's maintenance intervals, and ensuring actuator alignment and secure fastening to the valve body. Refer to the applicable model manual for specific maintenance procedures.
Documents
Product Brochure - Tank Bottom Ball Valves TK SeriesProduct information · EnglishSelection Guide - Bray Part Number TKF15Product information · EnglishSelection Guide - Bray Part Number TK7000Product information · EnglishTechnical Bulletin - Ball Valve Actuator Selection GuideProduct information · English