| Quantity: | |
|---|---|
Customizing Hemispherical Dished Ends For Oil, Chemical Industry, Water Conservancy, Electric Power,Boiler, Machinery, Metallurgy, Sanitary Tank
Head For Tank body Building ( Dished Heads End Cap Stainless/Carbon Steel or Alloy Materials Elliptical Ellipsodial Torispherical Conical Hemispherical)
Elliptical Heads
Torispherical Heads
Dished Head
Joggle Dished Head
Dished Head with Hot Press
Hemispherical Dished Head by Cold Press
Customizing Hemispherical Dished Ends For Oil, Chemical Industry, Water Conservancy, Electric Power,Boiler, Machinery, Metallurgy, Sanitary Tank
HEMISPHERICAL TANK HEADS( Pressure Vessel Head) HHA 1219.2mm*85mm SA516 Gr70N
CUSTOM PRESSURE VESSEL HEAD ( HEMISPHERICAL HEADS) HHA1600mm*160mm SA516 Gr70N
Asme Pressure Vessel Heads (Hemispherical Heads)HHA2100mm*120mm SA516 Gr70N
HEMISPHERICAL TANK HEADS( Pressure Vessel Head) HHA 1219.2mm*85mm SA516 Gr70N
CUSTOM PRESSURE VESSEL HEAD ( HEMISPHERICAL HEADS) HHA1600mm*160mm SA516 Gr70NAsme Pressure Vessel Heads (Hemispherical Heads)HHA2100mm*120mm SA516 Gr70N
Shape:Duplex steel,carbon steel,stainless steel,aluminum,titanium and etc.
Reduction ratio:about 10%
Technology:Hot pressing,cold pressing
Surface treatment:sand blasting,pickling
Usage:pressure vessel , heat exchanger , LPG, LNG tanks and so on
| 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 |
| 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 |
Minimum Thickness Tank Dish Head
| Standard Dished Heads for Tank | |||||
| Diameter | Thickness(Mm) | Material | Exw Unit Price | ||
| ND1440 | 8 | Q235-A | USD | 413.00 | Per piece |
| ND1528 | 8 | Q235-A | USD | 427.00 | |
| ND1570 | 6 | Q235-A | USD | 420.00 | |
| ND1716 | 6 | Q235-A | USD | 445.00 | |
| ND1750 | 6 | Q235-A | USD | 457.00 | |
| ND1900 | 6 | Q235-A | USD | 465.00 | |
| ND1980 | 6 | Q235-A | USD | 472.00 | |
| ND2500 | 6 | Q235-A | USD | 459.00 | |
| ND2000 | 6 | Q235-A | USD | 446.00 | |
| ND2100 | 5 | Q235-A | USD | 429.00 | |
| ND2100 | 6 | Q235-A | USD | 479.00 | |
| ND2150 | 6 | Q235-A | USD | 493.00 | |
| ND2600 | 6 | Q235-A | USD | 582.00 | |
| ND2420 | 6 | Q235-A | USD | 541.00 | |
| ND2250 | 6 | Q235-A | USD | 501.00 | |
| ND2450 | 6 | Q235-A | USD | 544.00 | |
| ND2300 | 6 | Q235-A | USD | 509.00 | |
| ND2200 | 6 | Q235-A | USD | 488.00 | |
| ND2400 | 6 | Q235-A | USD | 532.00 | |
| ND2400 | 5 | Q235-A | USD | 509.00 | |
| ND2480 | 6 | Q235-A | USD | 551.00 | |
| ND2550 | 6 | Q235-A | USD | 568.00 | |
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 |
|---|
| programToleranceGroove Angle ± 2.5°Obtuse Width± 1mmGroove RoughnessNo defects such as flow, layered, inclusion are allowed. |
| External circumference tolerance and inside diameter tolerance |
|---|
| Nominal diameterSteel products thicknessinside diameter tolerance ID External circumference toleranceDN < 6002 ≤ δ s < 4± 1.5± 44 ≤ δ s < 6± 2± 6δ s ≥ 6± 3-3~ 9600 ≤ DN < 10002 ≤ δ s < 4± 2± 64 ≤ δ s < 6± 2± 6δ s ≥ 6± 3-3~ 9DN ≥ 1000all± 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. |
Tank dish Head manufacturing range
Torispherical Head (Type THA, THB, XD OR MD)
Stainless Steel Flanged & Reverse Dished Head
Cryogenic Vessel Head
1.Are you trading company or manufacturer ?
We are Group Corporation manufacturer ,have Group Factories Contractor.Don't worry,dear.We have joined the trade assurance,if the products have quality problems when you received them,the payments can be refund to you.
Customizing Hemispherical Dished Ends For Oil, Chemical Industry, Water Conservancy, Electric Power,Boiler, Machinery, Metallurgy, Sanitary Tank
Head For Tank body Building ( Dished Heads End Cap Stainless/Carbon Steel or Alloy Materials Elliptical Ellipsodial Torispherical Conical Hemispherical)
Elliptical Heads
Torispherical Heads
Dished Head
Joggle Dished Head
Dished Head with Hot Press
Hemispherical Dished Head by Cold Press
Customizing Hemispherical Dished Ends For Oil, Chemical Industry, Water Conservancy, Electric Power,Boiler, Machinery, Metallurgy, Sanitary Tank HEMISPHERICAL TANK HEADS( Pressure Vessel Head) HHA 1219.2mm*85mm SA516 Gr70N
CUSTOM PRESSURE VESSEL HEAD ( HEMISPHERICAL HEADS) HHA1600mm*160mm SA516 Gr70NAsme Pressure Vessel Heads (Hemispherical Heads)HHA2100mm*120mm SA516 Gr70N
HEMISPHERICAL TANK HEADS( Pressure Vessel Head) HHA 1219.2mm*85mm SA516 Gr70N
CUSTOM PRESSURE VESSEL HEAD ( HEMISPHERICAL HEADS) HHA1600mm*160mm SA516 Gr70NAsme Pressure Vessel Heads (Hemispherical Heads)HHA2100mm*120mm SA516 Gr70N
Shape:Duplex steel,carbon steel,stainless steel,aluminum,titanium and etc.
Reduction ratio:about 10%
Technology:Hot pressing,cold pressing
Surface treatment:sand blasting,pickling
Usage:pressure vessel , heat exchanger , LPG, LNG tanks and so on
| 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 |
| 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 |
Minimum Thickness Tank Dish Head
| Standard Dished Heads for Tank | |||||
| Diameter | Thickness(Mm) | Material | Exw Unit Price | ||
| ND1440 | 8 | Q235-A | USD | 413.00 | Per piece |
| ND1528 | 8 | Q235-A | USD | 427.00 | |
| ND1570 | 6 | Q235-A | USD | 420.00 | |
| ND1716 | 6 | Q235-A | USD | 445.00 | |
| ND1750 | 6 | Q235-A | USD | 457.00 | |
| ND1900 | 6 | Q235-A | USD | 465.00 | |
| ND1980 | 6 | Q235-A | USD | 472.00 | |
| ND2500 | 6 | Q235-A | USD | 459.00 | |
| ND2000 | 6 | Q235-A | USD | 446.00 | |
| ND2100 | 5 | Q235-A | USD | 429.00 | |
| ND2100 | 6 | Q235-A | USD | 479.00 | |
| ND2150 | 6 | Q235-A | USD | 493.00 | |
| ND2600 | 6 | Q235-A | USD | 582.00 | |
| ND2420 | 6 | Q235-A | USD | 541.00 | |
| ND2250 | 6 | Q235-A | USD | 501.00 | |
| ND2450 | 6 | Q235-A | USD | 544.00 | |
| ND2300 | 6 | Q235-A | USD | 509.00 | |
| ND2200 | 6 | Q235-A | USD | 488.00 | |
| ND2400 | 6 | Q235-A | USD | 532.00 | |
| ND2400 | 5 | Q235-A | USD | 509.00 | |
| ND2480 | 6 | Q235-A | USD | 551.00 | |
| ND2550 | 6 | Q235-A | USD | 568.00 | |
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 |
|---|
| programToleranceGroove Angle ± 2.5°Obtuse Width± 1mmGroove RoughnessNo defects such as flow, layered, inclusion are allowed. |
| External circumference tolerance and inside diameter tolerance |
|---|
| Nominal diameterSteel products thicknessinside diameter tolerance ID External circumference toleranceDN < 6002 ≤ δ s < 4± 1.5± 44 ≤ δ s < 6± 2± 6δ s ≥ 6± 3-3~ 9600 ≤ DN < 10002 ≤ δ s < 4± 2± 64 ≤ δ s < 6± 2± 6δ s ≥ 6± 3-3~ 9DN ≥ 1000all± 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. |
Tank dish Head manufacturing range
Torispherical Head (Type THA, THB, XD OR MD)
Stainless Steel Flanged & Reverse Dished Head
Cryogenic Vessel Head
1.Are you trading company or manufacturer ?
We are Group Corporation manufacturer ,have Group Factories Contractor.Don't worry,dear.We have joined the trade assurance,if the products have quality problems when you received them,the payments can be refund to you.
