Export-Ready for Material Handling & Process Industries Worldwide
origin Mumbai (JNPT) | CIF worldwide | Dust-free crating | VFD-compatible gear motor
Rotary Airlock Valve — 250mm Flanged — Gear Motor Operated
Supreme Valves India manufactures Rotary Airlock Valves (rotary feeders) in sizes 150mm to 400mm with flanged connections and gear motor drives. The 250mm (10") model is designed for medium-capacity material handling applications in cement plants, power stations, chemical processing, food processing, and dust collection systems. The cast iron housing provides robust mechanical protection, while the stainless steel rotor with precision-machined pockets ensures accurate volumetric feeding and reliable airlock performance between the pressure zones. The integral gear motor provides smooth, adjustable-speed operation with high starting torque for reliable discharge of packed or bridging materials.
Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Ductile Iron (ASTM A536 / EN-GJS-400-15) |
| Stem / Spindle | SS 410 / SS 420 |
| Seat / Trim | EPDM / NBR / Bronze |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | EN 1171 / AWWA C509 / BS 5163 |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | PN16 / PN25 |
Material of Construction
| S.N. | Parts Name | Material |
|---|---|---|
| 01 | BODY | WCB: A 216 WCB | CF8: A 351 CF8 | CF8M: A 351 CF8M |
| 02 | SIDE PIECE | WCB: A 216 WCB | CF8: A 351 CF8 | CF8M: A 351 CF8 |
| 03 | BALL | AISI 304 / AISI 316 |
| 04 | STEM | AISI 304 / AISI 316 |
| 05 | GLAND NUT | AISI 304 / AISI 316 |
| 06 | GLAND BUSH | AISI 304 / AISI 316 |
| 07 | LOCK NUT | AISI 304 / AISI 316 |
| 08 | SEAT RING | PTFE , RPTFE , CFT , GFT |
| 09 | STEM SEAL | PTFE , RPTFE , CFT , GFT |
| 10 | BODY SEAL | PTFE , RPTFE , CFT , GFT |
| 11 | WRENCH | C.S / S.S. |
| 12 | STOP | C.S / S.S. 304 / S.S. 316 |
| 12 | STOPPER PIN | C.S / S.S. 304 / S.S. 316 |
| 13 | STUD & NUT | C.S/ S.S |
Dimension Tables
| Class | SIZE M.M. | PORT | A(S/E) | A (Flange) | B | ØC | ØD | ØM | N | PCD |
|---|---|---|---|---|---|---|---|---|---|---|
| 150# | 15 | 12.5 | 108.0 | 124.0 | 9.4 | 35.0 | 89.0 | 15.8 | 4 | 60.3 |
| 150# | 20 | 19.0 | 135.0 | 142.0 | 10.1 | 43.0 | 98.5 | 15.8 | 4 | 69.8 |
| 150# | 25 | 25.0 | 135.0 | 165.0 | 11.2 | 50.8 | 108.0 | 15.8 | 4 | 79.3 |
| 150# | 40 | 38.0 | 158.0 | 215.0 | 14.2 | 73.0 | 127.0 | 15.8 | 4 | 98.5 |
| 150# | 50 | 50.0 | 178.0 | 245.0 | 15.7 | 92.1 | 152.4 | 19 | 4 | 120.6 |
| 150# | 65 | 63.0 | 210.5 | 295.0 | 17.2 | 104.7 | 178.0 | 19 | 4 | 139.7 |
| 150# | 80 | 75.0 | 250.0 | 325.0 | 19.0 | 127.0 | 190.5 | 19 | 4 | 152.4 |
| 150# | 100 | 100.0 | 309.8 | 380.0 | 23.9 | 157.2 | 228.6 | 19 | 8 | 190.5 |
| 300# | 15 | 12.5 | - | 132.0 | 14.2 | 35.0 | 95.2 | 15.8 | 4 | 66.5 |
| 300# | 20 | 19.0 | - | 153.0 | 15.7 | 43.0 | 117.4 | 19 | 4 | 82.5 |
| 300# | 25 | 25.0 | - | 178.0 | 17.5 | 50.8 | 124.0 | 19 | 4 | 88.9 |
| 300# | 40 | 38.0 | - | 220.0 | 20.5 | 73.0 | 155.5 | 22 | 4 | 114.3 |
| 300# | 50 | 50.0 | - | 260.0 | 22.3 | 92.1 | 165.0 | 19 | 8 | 127.0 |
| 300# | 65 | 63.0 | - | 311.0 | 25.4 | 104.7 | 190.5 | 22 | 8 | 149.3 |
| 300# | 80 | 75.0 | - | 344.0 | 28.5 | 127.0 | 209.5 | 22 | 8 | 168.1 |
| 300# | 100 | 100.0 | - | 400.0 | 31.7 | 157.2 | 254.0 | 22 | 8 | 200.1 |