FAV is the Manufacturer of Duplex Panel Ball Valve OD, Needle Valve, Ball Valves, Check Valves, Manifold Block & Bleed Valves.
Duplex stainless steels are becoming more common. Duplex Ball Valve OD, are being offered by all the major stainless steel mills for a number of reasons:
Higher strength leading to weight saving
Greater corrosion resistance particularly stress corrosion cracking
Better price stability
Lower price
Properties
The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205 to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of 2205 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L in most environments.
Advantages
The advantage of a SD Ball Valve OD, is that it combines the favourable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).
2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.
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| Part No. | INLET/OUTLET Tube OD | Dimension | Cv | ||
| L | B | H | |||
| FBV/6K/PT-2/DU | 1/8” | 73 | 2.4 | 55 | 0.26 |
| FBV/6K/PT-4/DU | 1/4” | 78 | 4.8 | 55 | 1.04 |
| FBV/6K/PT-6/DU | 3/8” | 83 | 7 | 55 | 2.34 |
| FBV/6K/PT-8/DU | 1/2” | 102 | 10 | 60 | 5.80 |
| FBV/6K/PT-12/DU | 3/4” | 115 | 15 | 65 | 6.42 |
| FBV/6K/PT-16/DU | 1” | 135 | 19 | 70 | 7.82 |
| FBV/6K/PT-4M/DU | 4mm | 73 | 2.4 | 55 | 0.26 |
| FBV/6K/PT-6M/DU | 6mm | 78 | 4.8 | 55 | 1.04 |
| FBV/6K/PT-10M/DU | 10mm | 83 | 7 | 55 | 2.34 |
| FBV/6K/PT-12M/DU | 12mm | 102 | 10 | 60 | 5.80 |
| FBV/6K/PT-18M/DU | 18mm | 115 | 15 | 65 | 6.42 |
| FBV/6K/PT-25M/DU | 25mm | 135 | 19 | 70 | 7.82 |
| # | Description | Material of Construction | Qty. |
| 1 | Body | Duplex/ Super Duplex | 1 |
| 2 | Adopter | Duplex/ Super Duplex | 2 |
| 3 | Ball | Duplex/ Super Duplex | 1 |
| 4 | Spindle | Duplex/ Super Duplex | 1 |
| 5 | Seat | PTFE | 2 |
| 6 | Joint Seal | Viton / Buna-N | 2 |
| 7 | Gland Seal | PTFE | 1 |
| 8 | ‘O’ Ring | Viton / Buna-N | 1 |
| 9 | Gland Nut | Duplex/ Super Duplex | 1 |
| 10 | Handle | Nylon | 1 |
| 11 | Stop Pin | SS | 1 |
| 12 | Panel Nut | SS | 1 |
| 13 | L N Screw | SS 304 | 1 |
| 14 | Nut | Duplex/ Super Duplex | 2 |
| 15 | Front Ferrule | Duplex/ Super Duplex | 2 |
| 16 | Back Ferrule | Duplex/ Super Duplex | 2 |
Some Common Sizes for Duplex & Super Duplex Ball Valve are
- FAV SD UNS 32750, Panel Ball Valve, 1/4” OD, 3000 Psi
- FAV Duplex 2205, Panel Ball Valve, 3/8” OD, 3000 Psi
- FAV SD 2507, Panel Ball Valve, 1/2” OD, 3000 Psi
- FAV Duplex UNS S31803, Panel Ball Valve, 3/4” OD, 3000 Psi
- FAV SD UNS 32750, Panel Ball Valve, 6mm OD, 3000 Psi
- FAV Duplex 2205, Panel Ball Valve, 8mm OD, 3000 Psi
- FAV Super Duplex 2507, Panel Ball Valve, 10mm OD, 3000 Psi
- FAV Duplex UNS S31803, Panel Ball Valve, 12mm OD, 3000 Psi
