AFFCO valve believes high quality valve starts from high quality casting,forging and other raw materials. we have profound experience in compliance with stringent material standards including NORSOK and wide variety blue chip end user specifications covering both metallic and non-metallic materials.
Increasingly, serve upstream operation conditions demanding not only primary components, but also accessories like bolting, bearing ,O-ring, packing and actuation components. AFFCO valve can cater the needs of any project specifications together with our vast network of material supply chain.
Carbon steels
Stainless Steel
Duplex/Super Duplex
According to your project specifications
PMI
MPE
DPI/LPE
UT testing/Radiography
X ray /gamma ray
Graphite material for packing
Stellite material for seat
ASTM/EN/DIN/JIS/GB standard material for project requirement
Accuracy is ensured by high precision CNC machine and measured by CMM
Surface roughness can reach Ra0.2
AFFCO valve, gate valve range plays a critical role in isolation service across hundreds of installations. The range can be engineered to suit your application, with body construction, material and ancillary features optimised to meet your process needs. With API600 certification in place across the range, you can be assured of outstanding reliability and sealing performance through design life of your asset.
Structure
Bolted bonnet, rising stem, wedged single disc, metal sealing surface
Packing
Flexible graphite, reliable sealing performance
Gate
Flexible wedge gate for larger size, solid wedge gate for smaller size
Stem
Integral forged design
T type connection with gate
Back seating design
Stem Nut
Copper alloy material for torque reduce
Seat
Spray welded with hard alloy specified by the customer
| DN | L | D1 | nxd | D | D0 | b | f | H | W |
| 50 | 40 | 125 | 4×19 | 165 | 99 | 16 | 2 | 375 | 180 |
| 65 | 40 | 145 | 4×19 | 185 | 118 | 16 | 2 | 420 | 180 |
| 80 | 50 | 160 | 8×19 | 200 | 132 | 17 | 2 | 450 | 200 |
| 100 | 50 | 180 | 8×19 | 220 | 156 | 17 | 2 | 512 | 200 |
| 125 | 50 | 210 | 8×19 | 250 | 184 | 17 | 2 | 570 | 220 |
| 150 | 60 | 240 | 8×23 | 285 | 211 | 21 | 2 | 665 | 250 |
| 200 | 60 | 295 | 8×23 | 340 | 266 | 21 | 2 | 825 | 300 |
| 250 | 70 | 350 | 12×23 | 395 | 319 | 24 | 2 | 1000 | 350 |
| 300 | 70 | 400 | 12×23 | 445 | 370 | 24 | 2 | 1155 | 350 |
| 350 | 96 | 460 | 16×23 | 505 | 429 | 33 | 2 | 1310 | 400 |
| 400 | 100 | 515 | 16×28 | 565 | 480 | 35 | 2 | 1475 | 500 |
| 450 | 106 | 565 | 20×28 | 615 | 548 | 30 | 2 | 1630 | 600 |
| 500 | 110 | 620 | 20×28 | 670 | 609 | 31.5 | 2 | – | 600 |
| 600 | 110 | 725 | 20×31 | 780 | 720 | 36 | 2 | – | 600 |
