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Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower)

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Customize Boiler Heat Exchanger Pressure Vessel

Pressure Vessel Distillation Tower

Customizing Pressure Vessel Tank Reactor Steam Heat Exchanger (Distillation Tower Optional Lined PE Steel ,Stainless Steel for Oil and Gas Refinery Project )
Stainelss Steel Dished for Petroleum Oil, Chemical , Water Conservancy, Electric Power,Boiler, Metallurgy, Sanitary Tank Boiler Pressure Vessel , Heat Exchanger , LPG, LNG Tanks
Detailed Photos

Hot Sale GB/ASME Standard Gas Spherical Storage Tank

Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower)

Pressure Vessels Factory, Custom Pressure Vessels OEM/ODM

Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower) Factory Price Hot Sale Separation Pressure Vessel , GB / ASME Standard Separation Pressure Vessel Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower) Pressure Vessel manufacturers & suppliers Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower) Factory Price Hot Sale Separation Pressure Vessel
Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower)
GB / ASME Standard Separation Pressure Vessel

Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower) Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower) Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower) Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower) Torispherical Dish Head For Pressure Vessel For Making Pressure Vessel , Heat Exchanger , Lpg, Lng Tanks
Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower)
Product Parameters

Boiler Elliptical End Cap

Brand Name: DR
Diameter: 89mm-10000mm
Thickness: 2mm--300mm
Reduction Ratio: About 10%
Material: Duplex steel,carbon steel,stainless steel,aluminum,titanium and etc.
Technology: Hot pressing, Cold pressing
Surface Treatment: Sand Blasting,Pickling
Test: UT,RT,MT,PT,TOFD.
Applicable Standard: ASME, PED and GB
Certificate: ISO9001 ,ISO45001,OHSAS18001
Applications: Petroleum, chemical industry, water conservancy, electric power,boiler, machinery, metallurgy, sanitary construction etc.
Packaging: wooden box and iron shelf or as percustomers requirement
Customized Product Support


1, Description
This is called an elliptical head. the shape of this head is more economical beasue the height of the head is just a graction of the diameter.its radius varies between the major and minor axis;usually ratio is 2:1
this size heads are used externsively in the construction of tanks for liquefied petroleum gas, air recievers and other unfired pressure vessels.these heads can be fored form carbon steel,stainless steel ,and other ferrous and non-ferrouns metals and alloys.

2, Application:
Gas and Oil industry, Petrochemical industry, food, etc

3, forming range (see below excel)
Note that:
A: The below heads was formed by hokkai with one piece plate,
B: Pls check with me if the range is out of the below range, pls contact with me
C, the forming range is not included in petals fabrication way.

4, Order information
Pls provide us with below information
1) Material grade. Including special requirement if have
2) Head Diameter
3) Nom THK or min thick
4) Straight Flange if have
5)others special forming process

Customizing various shapes of heads with ASME VIII-1 with U stamp, EN1345, AS1210 or China code etc.

Pls contact with me by the below E-mail adress if you have any further queries.

Cold press range:

Diameter 200mm-3200mm
Thickness 2mm-24mm

Cold Spinning

Diameter 750mm-9000mm
Thickness 2mm-42mm


Segment forming

Diameter no limit
Thickness below 90mm
Standard Dished Heads for Tank
Diameter Thickness(Mm) Material Exw Unit Price
ND1440 8 Q235-A USD 213.00 per piece
ND1528 8 Q235-A USD 227.00
ND1570 6 Q235-A USD 220.00
ND1716 6 Q235-A USD 245.00
ND1750 6 Q235-A USD 257.00
ND1900 6 Q235-A USD 265.00
ND1980 6 Q235-A USD 272.00
ND2500 6 Q235-A USD 359.00
ND2000 6 Q235-A USD 246.00
ND2100 5 Q235-A USD 229.00
ND2100 6 Q235-A USD 279.00
ND2150 6 Q235-A USD 293.00
ND2600 6 Q235-A USD 382.00
ND2420 6 Q235-A USD 341.00
ND2250 6 Q235-A USD 301.00
ND2450 6 Q235-A USD 344.00
ND2300 6 Q235-A USD 309.00
ND2200 6 Q235-A USD 288.00
ND2400 6 Q235-A USD 332.00
ND2400 5 Q235-A USD 309.00
ND2480 6 Q235-A USD 351.00
ND2550 6 Q235-A USD 368.00

Minimum Thickness Tank Dish Head

Customize Boiler Heat Exchanger (Pressure Vessel Distillation Tower)
FAQ

Ellipsoidal Head (EHA OR EHB) Inspection standard

Section shape gap: Outside convex≤1.25%Di; Inside concave≤0.625%Di. (Full size sample plate whose chord length is equal to Di is used for measurement.)

1.Measure four inside diameters which distribute in the same distance at straight edge. The difference between the measured maximum value and the measured minimum value is the roundness tolerance.

2.The roundness tolerance is not larger than 0.5 % Di, and 25mm;

3.While δ s/Di < 0.005 , and δ s < 12mm, the roundness tolerance is not larger than 0.8 % Di, and 25mm.

The tolerance of slope and dimension and groove roughness
program Tolerance
Groove Angle ± 2.5°
Obtuse Width ± 1mm
Groove Roughness
No defects such as flow, layered, inclusion are allowed.
External circumference tolerance and inside diameter tolerance
Nominal diameter Steel products thickness inside diameter tolerance ID External circumference tolerance
DN < 600 2 ≤ δ s < 4 ± 1.5 ± 4
4 ≤ δ s < 6 ± 2 ± 6
δ s ≥ 6 ± 3 -3~ 9
600 ≤ DN < 1000 2 ≤ δ s < 4 ± 2 ± 6
4 ≤ δ s < 6 ± 2 ± 6
δ s ≥ 6 ± 3 -3~ 9
DN ≥ 1000 all ± 3 -3~ 9
Notes:While Di ≥ 1000 and δs < 10mm , take external circumference tolerance as criterion. The inside diameter tolerance or the external circumference tolerance can be decided through the discussion between the two parties.
Notes:1 Standard length of external circumference = (inside diameter nominal thickness 2 ) π (3.1416). 2 Under the circumstance of inside diameter tolerance, measure four inside diameters which distribute in the same distance at straight edge, and take the average value of measured inside diameter.
Surface quality
1.The measured minimum thickness of welding seam shall not be less than the minimum guaranteed thickness. The welding seam height should not be 0.5mm lower than mother material.
2.Under the circumstance of step stamping, circle impression will be taken place. The gap measured by sample plate should be less than 1.5mm .
3.The pits on the material surface should be ground. The grinding depth should be less than 5% δ s and 2mm . Otherwise compensating welding is needed.
4.The depth of the riffle on end cover surface shall not be larger than 0.2mm . While the ground area on end cover is less than 20%, surface treatment should be done over whole end cover.
5.If customers have special requirements for end cover surface, shall follow the customers' requirements.
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 Address: R 23, F4,New Factory (4), B1, Phase II, Dashu Industrial Village , Liufang Street ,Wuhan East Lake Hi-tech Development Zone, Wuhan City, Hubei Province,P.R.China
Keystone Vessel Manufacturing Co., Ltd  Add :No.333,2nd Youyi Road,Lishan Town, Sui County,Hubei Province.
Phones: +86-152-7135-7675    https://ks-vessel.com
Email: isotanks@foxmail.com jin@ks-vessel.com

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