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

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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