A tube sheet is usually made from a round flat piece of plate,sheet with holes drilled to accept the tubes or pipes in a accurate location and pattern relative to one another.The tube sheets are used to support and isolate tubes in heat exchangers and boilers or to support filter elements. Tubes are attached to the tube sheet by hydraulic pressure or by roller expansion.

A tube sheet may be covered in a cladding material which serves as a corrosion barrier and insulator. Low carbon steel tube sheets can include a layer of a higher alloy metal bonded to the surface to provide more effective corrosion resistance without the expense of using the solid alloy,which means it can save a lot of cost.

> Tube Sheet Designing for Heat Exchanger

In cases where it is critical to avoid fluid intermixing, a double tube sheet can be provided. The design of tube sheets is a fairly precise and complex process; the exact number of tubes needs to be established and a pattern of holes calculated to spreads them evenly over the tube sheet surface. Large exchangers may have several thousand tubes running through them arranged into precisely calculated groups or bundles. Sheet design and production is largely automated these days with computer software (like CAD) performing the calculations and the tube sheet drilling done on computer numerical control (CNC) machines.

In this design, the outer tube sheet is outside the shell circuit, virtually eliminating the chance of fluid intermixing. The inner tube sheet is vented to atmosphere so any fluid leak is easily detected.

Flange Surface :Anti-rust oil, clear lacquer, Black lacquer, Yellow lacquer, hot-dipped Galvanized, electrical galvanized

Technical: Forged, Casting

Flange Heat Treatment: Normalizing, Annealing, Quenching+Tempering

Material: We use CNC machining equipments to produce many kinds of tube plates, mainly focused on Nickel alloy, Monel, Hastelloy, Titanium, Aluminum, Stainless steel and copper alloy tube plates, the tube shapes include round, oval, square, inclined and special ones, with the hole dimension accuracy to 0.01mm, hole wall roughness Ra0.6, and the tube plate's sealing side roughness Ra0.4. The accuracy of positioning of the holes can reach 0.002mm, and the hole dimension can be any of that above 1mm.

Size: Customized

> Tube Sheet Material

Duplex Stainless Steel ASTM/ASME SA182 F44, F45, F51, F53, F55, F60, F61
Stainless Steel ASTM/ASME SA182 F304,304L,F316,316L, F310, F317L, F321, F347
Carbon Steel ASTM/ASME A105, A350 LF1, LF2, A266, A694, A765 Gr.2
Alloy Steel ASTM/ASME SA182 F1, F5, F9, F11, F12, F22, F51, A350-LF3
Non Ferrous
Titanium ASTM/ASME SB381, Gr.1, Gr.2, Gr.5, Gr.7, Gr.12, Gr.16
Copper Nickel ASTM/ASME SB151, UNS 70600(Cu-Ni 90/10), 71500(Cu-Ni 70/30)
Brass, Al-brass ASTM/ASME SB152 UNS C10100, C10200,C10300,C10800,C12200
Nickel Alloys ASTM/ASME SB169,SB171, SB564, UNS 2200, UNS 4400, UNS 8825 UNS 6600, UNS 6601, UNS 6625
Alloy 20 ASTM/ASME SB472 UNS 8020
Hastelloy ASTM/ASME SB564, UNS10276 ( C 276 )
Claded materials ASTM/ASME SB898, SB263, SB264 or closer
explosion cladding, making materials of 2 in 1 or 3 in 1.
Titanium- Steel, Nickel-Steel,Titanium- Copper,
Stainless Steel- Carbon Steel, Alloys- Steel etc.

> Fixed Tube Sheet Heat Exchanger

A Fixed Tube Sheet heat exchanger is the most common type heat exchanger in all Industries. Fixed Tube Sheet Heat Exchanger used in higher-pressure and Higher Temperature applications. Fixed tube Sheet heat exchangers are the one that are very much used in process chemical industries and refinery services, as there is absolutely no chance for intermixing fluids. This type heat exchanger is employed where even slightest intermixing fluids can not be tolerated. Fixed Tube Sheet Heat Exchanger has straight tubes that are secured at bothends to tubesheets welded to the shell. The construction may have removable channelcovers , bonnet-type channel covers tubesheets. The principal advantage the Fixed Tube Sheet Heat Exchanger construction is its low cost because its simple construction. In fact Fixed Tube Sheet Heat Exchanger is the least expensive construction type, as long as no expansion jointis required.

> Specifications

The Fixed tube-sheet heat exchanger are that shell pass cannot be cleaned with the mechanical method and the maintenance is difficult.

The Fixed tube -sheet heat exchanger is applicable to all services where the temperature difference between the shell and tube is small.

In the event a large differential temperature between the tubes and the shell, thetubesheets will be unable to absorb the differential stress, making it necessary an expansion joint.

> Packing Material

Plastic Mat Protection from compressional deformation for Fin Tube itself

Waterproof Paper Protection from water in shipping

Plywood For packing wall

8mm(Thick)

Square Steel For packing frame

Our CNC machine tools allow us to offer tube sheets, baffles, and flanges. Tubesheets are available in any machineable shape or configuration. Products can be machined to TEMA industry standards or as specified by customer.
1. Special design available according to requirement
2. anti-corrosion and high-temperature resistant with black painting
3. All the production process are made under the
ISO9001:2000 strictly.