• Markets & Solutions
  • CREDENTIALS
  • REFERENCE
  • News
  • Contact

Flanged Type Double-Blade Air Sealing Series 452

Flanged Type Double-Blade Air Sealing Series 452

Product Description

• Design Standard: The Manufacturer’s Standard
• Nominal Diameter: DN250-DN4000(10”-160”)
• Top Flange acc: ISO 5211
• Flange Connection: EN1092-1/DIN 86044/JIS B 2220/JIS F7805/CB/T3766/GB/T9119/GB/T2506
• Temperature range: 100°C-650°C
• Face to Face acc: The Manufacturer’s Standard
• Pressure test standard: 0.1 bar

Material Scope

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.

Full material range

Carbon steels

Stainless Steel

Duplex/Super Duplex

Casting and forging grades

According to your project specifications

Non-destructive testing

PMI

MPE

DPI/LPE

X ray /gamma ray

Coating

Painting suitable for marine and high temperature etc environment

High specification sub-componets

Graphite material for packing

Duplex,stainless material for seat

Material standards

ASTM/EN/DIN/JIS/GB standard material for project requirement

Machining

Accuracy is ensured by high precision CNC machine and measured by CMM

Surface roughness

Surface roughness can reach Ra0.2

Design Feature

AFFCO valve, damper valve range offers space and weight saving quarter-turn isolation for applications that does not require an unobstructed bore. Our design offers zero leakage shut off, with material and seating configurations. We provide reliable service and long life in critical applications. In place across the range, you can be assured of outstanding reliability and sealing performance through design life of your asset.

Zero leakage

Optional material available for different working condition

Special blade and compact design, quick open & close

Optional flange connection & Operator

Reliable bearing and bearing bush design prolong service life of shaft

Easy installation & Maintenance

Unique dual-blade solution, controls deformation of blade effectively

Heat-resistant and anti-corrosion

Low torque, long life

Widely applied in flue gas & scrucbber system

Excellent regulated performance, flow curve tending to straight line

Dimensions

DN H 1 H H2 L1 L2 L
250 400 820 411 250 260
300 440 900 411 285 260
350 483 973 411 305 260
400 508 1023 435.5 345 260
450 530 1080 435.5 375 260
500 575 1170 435.5 395 260
550 610 1250 461 410 300
600 593 1203 461 440 300
650 625 1326 461 465 300
700 670 1370 521 490 300
800 765 1560 546 540 300
900 860 1745 546 600 300
1000 965 1925 625 655 300
1100 1015 2025 625 705 300
1200 1210 2426 625 760 300
1300 1260 2526 625 845 1650 300
1400 1275 2591 655 910 1720 350
1500 1465 2901 655 960 1820 350
1600 1595 3181 655 1010 1945 350
1700 1645 3281 655 1035 2000 350
1800 1700 3400 701 1140 2190 350
1900 1744 3488 701 1190 2290 350
2000 1794 3590 701 1250 2400 350
2100 1597 3212 701 1290 2547 350
2200 1627 3312 701 1400 2650 350
2300 1677 3412 420 1450 2720 350
2400 1669 3601 420 1500 2850 350
2500 1719 3699 420 1530 3125 350
2600 1906 4026 435 1600 3125 350
2800 2006 4226 435 1700 3343 350
3000 2150 4480 460 1900 3665 350

CASE STUDIES

AFFCO in Marintec China 2023

CASE STUDIES

AFFCO Shanghai will take part in 2023 FFG & MTC