Type HT and AHT Hub
Basco™® Type HT and AHT Hub-Design Heat Exchangers
Our extensive line of Basco™ Type HT and AHT heat exchangers offer the benefits of non-ferrous construction in a highly standardized design for maximum flexibility at minimum cost. Hub-design advantages include increased corrosion resistance, maximum tube quantity in a given diameter for better efficiency, and lower entrance velocity and pressure drop as a result of the dome shell nozzle.
Our Type HT heat exchangers have been in production since 1965. Standard HT models feature low-cost, non-ferrous construction with brass shell, brass tubesheet and straight copper tubes. End bonnets are cast iron.
The Type AHT heat exchangers feature all 316 Stainless Steel construction in a wide variety of configurations. Modified units are suitable for critical service where ultra-clean conditions are paramount, including pharmaceutical and food processing applications.
Type HTR and AHTR feature a removable tube bundle design allowing shellside cleaning and bundle replacement.
Specifications
Sizes: 2" to 8" diameter; 8" to 96" length
HT Shells: Brass | AHT Shells: 316 Stainless Steel
Tubes: 1/4", 3/8", or 5/8" diameter; Copper, Admiralty, or 316 S/S; Straight or U-Tube
Baffles: Precision punched Brass or 316 S/S
Heads: Cast iron, Bronze, or 316 S/S; Fabricated in Steel, 304 S/S, or 90/10 CuNi
Flow: 1-pass, 2-pass, and 4-pass designs
Codes & Certifications
Basco™ heat exchangers are designed and manufactured to comply with a wide variety of international codes and standards, including:
- EU Pressure Equipment Directive (PED)
- Chinese Safety Quality License
- Australian Pressure Vessel Code AS1210
- Singapore Pressure Vessel Code
- DOSH Malaysian Pressure Vessel Code
- Canadian Registration Number (CRN)
- Indian Boiler Regulations (IBR)
- Polish UDT Code
- API 614, 660, 618
Performance Notes
- Hub-design provides increased corrosion resistance and maximum tube quantity in a given diameter
- Dome shell nozzle reduces entrance velocity and pressure drop
- HT: low-cost non-ferrous construction with brass shell, brass tubesheet, and straight copper tubes
- AHT: all 316 Stainless Steel construction for critical service and ultra-clean applications
- HTR/AHTR: removable tube bundle allows shellside cleaning and bundle replacement
- Numerous options for special materials, polished surfaces, and nozzle orientation
- Sizes 2" to 8" diameter; 8" to 96" length