- By-Pass G.T Road Maqsudan Jalandhar, Punjab
- +91 98140-34209|+9176963-00030
- minarengg@ymail.com
- minarenggco76@gmail.com
- By-Pass G.T Road Maqsudan Jalandhar, Punjab
- +91 98140-34209|+91 76963-00030
- minarengg@ymail.com
- minarenggco76@gmail.com
Resilent Seated Air Relief Valve-IS 14845
Size : 40mm to 200mm
Scope
Air relief valves are widely used in clear water mains in order to evacuate accumulated air under pressure, for exhaust of air when such mains are charged with water and for ventilating the mains when they are being emptied of water.
Types
- a) Single air valve:
- Small orifice type (S1)
- Large orifice type (S2)
- b) Double air valve:
- Standard type with in-built isolating valve (DS1)
- Without isolating valve (DS2)
- c) Kinetic air valve: Kinetic air valve (DK)
- d) Pressure Rating: PN-1.0, PN-1.6
Material Table & Components
| Sl No. | Component / Body | Basic | Alternative | ||||
|---|---|---|---|---|---|---|---|
| Material | Ref to IS No. | Grade / Designation | Material | Ref to IS No. | Grade / Designation | ||
| i) | Body, cover, valve disk, stuffing box, valve guide, cowl, gland, cap, joint support ring | Grey cast iron | 210 | FG 200 | — | ||
| ii) | Stem | High tensile brass | 320 | HTB 1 or HTB 2 | Stainless steel | 6603 | 04 Cr 17 Ni 12 Mo 2 04 Cr 18 Ni 10 12 Cr 13 |
| iii) | Low pressure seat ring and face ring | Natural rubber | 11855 | — | EPDM Nitrile rubber |
— | |
| iv) | High pressure orifice | Leaded tin bronze | 318 | LTB - 2 | High tensile brass Stainless steel |
320 6603 |
HTB 2 04 Cr 18 Ni 10 |
| v) | Stem nut | Leaded tin bronze | 318 | LTB - 2 | High tensile brass | 320 | HTB 2 |
| vi) | Body seat ring | Leaded tin bronze | 318 | LTB - 2 | Stainless steel | 3444 | Grade 1 |
| vii) | Bolts | Carbon steel | 1363 | Class 4.6 | Stainless steel | 6603 | — |
| viii) | Nuts | Carbon steel | 1363 | Class 4 | Stainless steel | 6603 | — |
| ix) | Gasket | Rubber | 638 | Type B | — | ||
| x) | Gland packing | Jute / hemp | 5414 | Type III | — | ||
| xi) | Float (Low pressure orifice) | Timber core with vulcanite coating | — | — | |||
| xii) | Float (High pressure orifice) | Timber core with rubber coating | — | Stainless steel | 3444 | — | |
| xiii) | Float guide | Leaded tin bronze | 318 | LTB-2 | High tensile brass | 320 | HTB 1 |
Dimension Table
| VALVE SIZE | A (Min) | B (Min) | C (Min) | SUITABLE FOR MAIN SIZE |
|---|---|---|---|---|
| 40 | 442 | 210 | 224 | UP TO 100 |
| 50 | 442 | 210 | 264 | 125 TO 200 |
| 80 | 504 | 236 | 287 | 225 TO 350 |
| 100 | 634 | 280 | 356 | 400 TO 500 |
| 150 | 862 | 430 | 476 | 600 TO 900 |
| 200 | 988 | 506 | 580 | 1 000 TO 1 200 |