| SL# | Item Code | Item Description | Unit |
Rate for ZoneA Dhaka & Mymensingh Division |
Rate for ZoneB Chattogram & Sylhet Division |
Rate for ZoneC Rajshahi & Rangpur Division |
Rate for ZoneD Khulna & Barishal Division |
|---|---|---|---|---|---|---|---|
| DIVISION 26 : SANITARY & WATER SUPPLY WORKS | |||||||
| 1441. | Pressure reducing valve | ||||||
| 1442. | Suppy, fitting and fixing of Water pressure reducing valve to reduce static and flowing pressures in water distribution systems and it shall be a diaphragm/balanced piston type with integral stainless steel strainer and a built-in bypass to relieve pressure build-up downstream of the assembly. The valve shall be spring loaded to open and shall be diaphragm actuated to close under pressure conditions. The valve shall be suitable for supply pressure up to 400 psi and water temperatures from 33º to 180ºF. The valve’s internal parts such as the cartridge assembly, strainer, diaphragm, and spring shall be accessible for inspection, repair or replacement without disconnecting the device from the pipeline. In addition, the valve shall have a clean-out feature to allow for removal of the strainer and seat disc without disturbing the pressure setting etc. all complete accepted by the Engineer- in- charge. | ||||||
| 1443. | 12 mm dia water pressure reducing valve (MS) | each | 2535 | 2532 | 2524 | 2524 | |
| 1444. | 19 mm dia water pressure reducing valve (MS) | each | 3357 | 2882 | 2874 | 2874 | |
| 1445. | 25 mm dia water pressure reducing valve (MS) | each | 4191 | 3315 | 3307 | 3307 | |
| 1446. | 32 mm dia water pressure reducing valve (MS) | each | 6277 | 3605 | 3598 | 3598 | |
| 1447. | 38 mm dia water pressure reducing valve (MS) | each | 7749 | 4036 | 4028 | 4028 | |
| 1448. | 50 mm dia water pressure reducing valve (MS) | each | 11430 | 5625 | 5617 | 5617 | |
| 1449. | 62 mm dia water pressure reducing valve (MS) | each | 19774 | 23958 | 23950 | 23950 | |
| 1450. | 75 mm dia water pressure reducing valve (MS) | each | 28363 | 31464 | 31456 | 31456 | |
