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TEMA Heat Exchanger HP LT Preheater Shell and Tube Heat Exchanger Straight Tube

China TEMA Heat Exchanger HP LT Preheater Shell and Tube Heat Exchanger Straight Tube

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TEMA Heat Exchanger HP LT Preheater Shell and Tube Heat Exchanger Straight Tube

MOQ： 1 SET
Price： Depend on drawing
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Payment Terms	T/T,L/C,D/A
Tube Material	Duplex Stainless Steel UNS S31803 / 2205
Delivery Time	20-80 days
Corrosion Allowance	Shell Side: 1.587 mm / Tube Side: 1.587 mm
Radiography Testing	100% Full Radiographic Examination (RT-1)
Tubesheet Material	SA-266 Class 2N + SS 316L Weld Overlay (10 mm min.)
Supply Ability	60 SETS/MONTH
Shell & Cover Material	Carbon Steel SA-516 Grade 70
Packaging Details	Ply-wooden Case /Iron Case/ Bundle with plastic Cap etc.
Channel Material	Carbon Steel SA-516 Grade 70 + SS 316L Clad (3 mm min.)
Model Number	Shell and Tube Heat Exchanger (NEN Type) / TEMA Heat Exchanger
Certification	TEMA Class R / ASME Section VIII Division 1
Brand Name	YUHONG
Place of Origin	CHINA

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Product Specification


Payment Terms	T/T,L/C,D/A	Tube Material	Duplex Stainless Steel UNS S31803 / 2205
Delivery Time	20-80 days	Corrosion Allowance	Shell Side: 1.587 mm / Tube Side: 1.587 mm
Radiography Testing	100% Full Radiographic Examination (RT-1)	Tubesheet Material	SA-266 Class 2N + SS 316L Weld Overlay (10 mm min.)
Supply Ability	60 SETS/MONTH	Shell & Cover Material	Carbon Steel SA-516 Grade 70
Packaging Details	Ply-wooden Case /Iron Case/ Bundle with plastic Cap etc.	Channel Material	Carbon Steel SA-516 Grade 70 + SS 316L Clad (3 mm min.)
Model Number	Shell and Tube Heat Exchanger (NEN Type) / TEMA Heat Exchanger	Certification	TEMA Class R / ASME Section VIII Division 1
Brand Name	YUHONG	Place of Origin	CHINA
High Light	TEMA Heat Exchanger HP LT Preheater ，Shell and Tube Heat Exchanger Straight Tube ，TEMA Heat Exchanger with Tube Bundle

TEMA Heat Exchanger HP LT Preheater Shell and Tube Heat Exchanger Straight Tube Bundle

A High-Pressure Low-Temperature (HP-LT) preheater shell and tube heat exchanger engineered for binary geothermal power plant operations. Built as an ASME Section VIII Division 1 stamped TEMA heat exchanger, the unit handles n-Butane C.G. on the shell side and geothermal brine on the tube side. Heat exchange occurs via a straight tube matrix, with each individual shell offering 2,605m² of active thermal surface area.

Note: High-density finned tube bundle options can be adapted for specialized gas-phase applications requiring enhanced external surface area per project criteria.

Core Components & Material Specifications

Component Part	Material Grade / Standard Specification	ASME / ASTM Code
Pressure Shell & Cover	SA-516 Grade 70 Carbon Steel Plate	ASME SA-516 Grade 70
Channel / Head	SA-516 Grade 70 + SS 316L Cladding (3 mm min. thickness)	ASME SA-516 / SA-240
Heat Transfer Tubes	UNS S31803 / 2205 Duplex Stainless Steel (19.05 mm OD x 0.889 mm AW)	ASME Sec. II Part A
Stationary Tubesheet	SA-266 Class 2N Forging with SS 316L Weld Overlay (10 mm min. thickness)	ASME SA-266 Class 2N
Baffles & Supports	Carbon Steel (NTIW-Seg Baffle Type, Cut 16.21, Spacing 1060 mm)	ASME Sec. II / TEMA Class C
Bolting (Studs / Nuts)	SA-193 Grade B8M Studs / SA-194 Grade 8M Nuts	ASME SA-193 / SA-194
Gaskets	Kamprofile 316L with Graphite Facing	ASME B16.20
Nozzles & Connections	SA-106 Grade B / Flanged per ASME B16.5 & ASME B16.47 Series B	ASME B16.5 / B16.47

Core Technical & Fabrication Features

ASME Code Stamped Structural Design: Designed, fabricated, and stamped in full compliance with ASME Boiler and Pressure Vessel Code Section VIII, Division 1 and TEMA Class C standards.
Optimized Tube Layout Pattern: Contains 19.05 mm OD tubes arranged in a 30° triangular pitch pattern 25.4mm pitch to achieve uniform fluid velocity and thermal efficiency.
Corrosion-Resistant Weld Overlay & Cladding: Features 10 mm minimum SS 316L weld overlay on the SA-266 Class 2N tubesheet and 3 mm minimum SS 316L explosion/weld cladding across internal channel surfaces.
Tube-to-Tubesheet Joints: Tubes are expanded and strength-welded to the tubesheet, accompanied by a helium leak test and hydrostatic validation.
Dual-Shell Stacked Configuration: Structural saddle layout and nozzle orientations support both standalone horizontal mounting and two-shell stacked arrangements (PH1001A bottom, PH1001B top).

Quality Assurance & Testing Specifications

Radiographic Testing (RT): 100% full radiographic examination (RT-1) on all longitudinal and circumferential pressure-retaining butt welds.
Non-Destructive Examination (NDE): Ultrasonic Testing (UT), Liquid Penetrant Testing (PT), and Magnetic Particle Testing (MT) performed per code and contractual specifications.
Hydrostatic Pressure Testing: Factory shop hydrostatic test calculated by the vendor to the maximum value required between ASME Code and project specification rules.
Tube Joint Verification: Strength-welded tube-to-tubesheet connections subjected to helium leak testing prior to final hydrostatic pressure testing.
Material Traceability: All pressure-retaining parts, internal components, and welded attachments supplied with EN 10204 Type 3.1 material test certificates.

Engineering Support & Global Project Services:

For custom ASME design verification, HTRI thermal calculations, or urgent RFQ processing, our lead sales engineer Max Zhang (Yuhong Group) provides direct technical assistance.

Direct Line / WhatsApp: +86-153-8196-4640
Engineering Mail: max [at] steelseamlesspipe [dot] com
Official Spec Portal: www [dot] tema-heatexchanger [dot] com

Company Details

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Yuhong Holding Group equipments production base at Jiangsu Jiangyin City, Jinjiang City and Yancheng City. Total production area around 184000 square meters, main products : Heat Exchanger, Condenser, Pressure Vessel , Fired Heater, Economizer, Columns, Reactor. Jinjiang Factory: Main Products: ... Yuhong Holding Group equipments production base at Jiangsu Jiangyin City, Jinjiang City and Yancheng City. Total production area around 184000 square meters, main products : Heat Exchanger, Condenser, Pressure Vessel , Fired Heater, Economizer, Columns, Reactor. Jinjiang Factory: Main Products: ...

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https://www.tema-heatexchanger.com/

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