Reducer Concentric, Diam:4"x2" ,Sch: S-10S/S-10S ASME B16.9 ASTM A403-SMLS Gr. WP316L(UNS S31603)..
Reducer Concentric, Diam:4"x2" ,Sch: S-10S/S-10S ASME B16.9 ASTM A403-SMLS Gr. WP316L(UNS S31603). | | ISO 9001 cerfiticate for special steel fittings | 1 | Product: | Forged socket welding/weld SW NPT threaded/screwed pipe fittings, | 90deg / 45deg elbow, tee ,cross, cap,reducer, | full / half / reducing coupling, swage , union, (hex square round head) plug, hex head / flush bushing, reducing/reducer inserts, boss, bull plug | Weldolet sockolet threadolet elbolet, flangolet latrolet, sweepolet,nipolet, coupolet, | 2 | size: | 1/8''~4'' | 3 | Class: | 3000LBS 6000LBS 9000LBS | 3 | Standard: | 1. ASME B16.11 Forged Fittings,Socket Welding and Threaded elbow tee cross cap coupling half-coupling square/hex/round head plug, hex head/flush bushing | 2. MSS SP-83 Class 3000 Steel Pipe Unions, Socket-Welding and Threaded | 3. MSS SP-79 Socket Welding Reducer Inserts | 4. MSS SP-95 Swage(d) Nippl es and Bull Plugs | 5. MSS SP-97 forged weldolet sockolet threadolet | 4 | Material: | Stainless / duplex stainless ; | nickel alloy monel inconel incoloy hastelloy nimonic | 5 | Stainless: | 304 304L 316 316L 317 317L 321 321H 316ti 347 347H 310S 309S 310 309 | ASME SA-182 ASTM A182 F304, F304L, F316, F316L, F309H, F310, F310H, ASTM A182 F317, F317L,F321, F321H, F347, F347H, F310MOLN, F316ti | 6 | Duplex stainless: | astm a182 F51 F53 F44 F55 F60 F61 F62 F56 F58 F904L F310MoLn F20; | Duplex 2205/UNS S31803/1.4462; duiplex 2507/UNS S32750/1.4410; | UNS S32760/1.4501; 904L/UNS N08904/1.4539 | 254SMO/UNS S31254/1.4547; 725LN/310Moln/UNS S31050/1.4466 | UNS S32205; alloy 255/UNS S32550; alloy 6xn/AL-6XN/AL6XN/UNS N08367/1.4529; | 316Lmod/1.4435; | 7 | Lead time: | 10~30 days according to qty | 8 | Packing : | Plywood cases or wooden box | 9 | Usage: | Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc | 10 | Exported countries: | United States, Germany, Saudi Arabia, South Korea,etc. | 11 | Test: | In house and the 3rd party to test (SGS/TUV/BV etc) | 12 | Advantages: | Excellent quality and in-time delivery | 14 | Other products: | 1. ASME B16.9 Butt welding/weld BW pipe fittings 90deg/45deg elbow equal/reducing tee concentric/eccentric reducer equal/reducing cross cap lap joint stub ends 180deg return bend lateral tee | 2. ASME B16.5 WN welding neck SO slip on welding Blind SW socket welding threaded lapped flange | 3. MSS SP-97 weldolet sockolet threadolet | 4. ASME B16.48 spectacle blind / blank flange, figure-8 blank, Paddle blank and paddle spacer | |
brief introduction
The big and small heads whose center is in a straight line are called concentric big and small heads. The commonly used forming process is reduced diameter pressing, expanded diameter pressing or reduced diameter plus expanded diameter pressing. Stamping can also be used for reducing pipes of some specifications.
distribution characteristics
(1) The bending moment caused by the area pressure difference between the large and small ends of concentric reducer under the action of internal pressure causes the relative opening of the large end and the relative contraction of the small end;
(2) Under the action of internal pressure, the circumferential stress on the inner surface of the large end on the eccentric side and the outer surface of the middle part on the eccentric side of the eccentric reducer is the largest.

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