MATERIALS |
GLOBEÂ VALVE |
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ITEM | PARTSÂ NAME | MATERIAL | ||||||||||
1 | BODY | CASTÂ IRON | ||||||||||
2 | SEATÂ RING | BRASS/STAINLESSÂ STEEL | DIMENSIONS(mm) | |||||||||
3 | DISC | CAST IRON+BRASS/STAINLESS STEEL | DN | L | D | D1 | D2 | b | Z-∮d | f | H | DO |
4 | STEEL BALL | ≤DN25 IRON WIRE | 15 | 130 | 95 | 65 | 47 | 14 | 4-14 | 2 | 170 | 80 |
5 | BOLT | CARBONÂ STEEL | 20 | 150 | 105 | 75 | 58 | 16 | 4-14 | 2 | 170 | 80 |
6 | GASKET | GRAPHITE | 25 | 160 | 115 | 85 | 68 | 16 | 4-14 | 2 | 190 | 100 |
7 | BOLTÂ NUT | CARBONÂ STEEL | 32 | 180 | 140 | 100 | 78 | 18 | 4-18 | 2 | 210 | 120 |
8 | STEM | STAINLESSÂ STEEL | 40 | 200 | 150 | 110 | 88 | 18 | 4-18 | 3 | 220 | 120 |
9 | PACKING | GRAPHITE | 50 | 230 | 165 | 125 | 102 | 20 | 4-18 | 3 | 235 | 140 |
10 | GLAND | CASTÂ IRON | 65 | 290 | 185 | 145 | 122 | 20 | 4-18 | 3 | 275 | 160 |
11 | BONNET | CASTÂ IRON | 80 | 310 | 200 | 160 | 138 | 22 | 8-18 | 3 | 335 | 240 |
12 | STEMÂ NUT | BRASS | 100 | 350 | 220 | 180 | 158 | 24 | 8-18 | 3 | 375 | 240 |
13 | BOLTÂ NUT | CARBONÂ STEEL | 125 | 400 | 250 | 210 | 188 | 26 | 8-18 | 3 | 425 | 280 |
14 | BOLT | CARBONÂ STEEL | 150 | 480 | 285 | 240 | 212 | 26 | 8-23 | 3 | 490 | 320 |
15 | WHEEL | CASTÂ IRON | 200 | 600 | 340 | 295 | 268 | 30 | 12-23 | 3 | 620 | 360 |
16 | NUTÂ GASKET | CARBONÂ STEEL | 250 | 730 | 405 | 355 | 320 | 32 | 12-27 | 3 | 705 | 400 |
NO. | Part Name | Material | ASTM Spec. |  |
1 | Body | Ductile Iron | GGG50 | ASTM A536 |
2 | Seat | BRASS/SS304/SS316 | BRASS/SS304/SS316 | Â |
3 | Disc | GGG40+BRASS | GGG40+BRASS | Â |
4 | Stem | Stainless Steel | 20Cr13 | SS416 |
5 | Steel ball | GCr15 |  |  |
6 | Graphite Gasket | Stainless Steel+Graphite |  |  |
7 | Bonnet | Ductile Iron | our dished heads are used in a variety of applications and industries such as storage tanks, pressure vessels, road tank, food processing operations, chemical plants ,Nuclear operation, Oil Refining, Architectural feature, power generation. Due to our forming experience and equipment, we can spin or press the first part of the process of forming your products, It depend on the thickness and material performance, Our main products are 2:1 SE dished heads, Torispherical heads, Cones,Hemispherical heads etc Choosing the right type is the key decision for each customer and one for which our experience team to happy to give advice, simple speaking, the torispherical heads, the less ressure it can withstand, Conversely, the deeper dished heads, for example Elliptical heads, hemispherical, the greater pressure it can take. Our in house-capability to form dished heads by cold press brings major benefits to our customers and sets us apart from others dished heads manufactures For carbon steel dished heads, we can forming this dished heads from 76-9000mm in diameter and below 250mm in thickness
The general forming process as the below sketches
Technical Delivery Condition
2,Enquiry/order required information We can give our clients once they gave us the below information But if clients tolerance is higher than below Hokkai standards, it shall be provided to Hokkai prior to offer or ordering.
Special Material Elliptical Head Special Material Elliptical Head,Special Material Elliptical Dished Heads,Special Material Elliptical Dishend Head,Best Special Material Elliptical Head YIXING HOKKAI HEAD PLATE CO.,LTD , http://www.hokkaidishedend.com |