Install 12" ANSI 150 gate valve with 2 weld-neck flanges, gaskets and bolting: cost per unit in Nigeria
Net unit rate in Abuja, excluding overheads, profit and VAT
₦6,506,061per unit
Tender rate about ₦8,683,945 per unit with overheads, contingency, profit and VAT.
Price a BoQ with this rateAs at 15 October 2026, the net unit rate for install 12" ANSI 150 gate valve with 2 weld-neck flanges, gaskets and bolting is ₦6,506,061 per unit in Abuja: ₦6,230,326 materials, ₦88,425 labour and ₦187,310 plant. With overheads (7.5%), contingency (5%), profit (10%) and VAT (7.5%) the tender rate is about ₦8,683,945 per unit.
Rate build-up (Abuja, Oct 2026)
| Resource type | Resource | Quantity per unit | Waste | Rate | Cost |
|---|---|---|---|---|---|
| Material | Gate valve cast steel ANSI 150 RF 12" (API 600) | 1 unit | - | ₦5,411,980 | ₦5,411,980 |
| Material | Weld-neck flange ANSI 150 RF 12", A105 | 2 unit | - | ₦223,944 | ₦447,888 |
| Material | Spiral-wound gasket 12" cl150/300 (SS316/graphite) | 2 unit | 5% | ₦33,592 | ₦70,542 |
| Material | Stud bolt set B7/2H for 12" cl150 flange joint | 2 set | 5% | ₦102,641 | ₦215,546 |
| Material | Low-hydrogen electrode E7018, per kg | 2 kg | 10% | ₦6,532 | ₦14,370 |
| Material | Radiographic weld test, per joint (incl. film) | 2 unit | - | ₦35,000 | ₦70,000 |
| Labour (hours) | Pipeline welder (6G coded) | 6 h | - | ₦7,369 | ₦44,212 |
| Labour (hours) | Pipe fitter | 6 h | - | ₦4,912 | ₦29,475 |
| Labour (hours) | Rigger / banksman | 3 h | - | ₦2,620 | ₦7,860 |
| Labour (hours) | Unskilled labourer | 6 h | - | ₦1,146 | ₦6,878 |
| Plant (days) | Mobile crane 25t | 0.25 day | - | ₦749,240 | ₦187,310 |
| Materials | ₦6,230,326 | ||||
| Labour | ₦88,425 | ||||
| Plant | ₦187,310 | ||||
| Net unit rate per unit | ₦6,506,061 |
Rate by location
Materials, labour and plant are adjusted separately with Buildocrat's location factors.
| Location | Net rate per unit | Tender rate incl. OH&P and VAT |
|---|---|---|
| Abuja (FCT) | ₦6,506,061 | ₦8,683,945 |
| Lagos | ₦6,896,320 | ₦9,204,842 |
| Port Harcourt | ₦7,015,051 | ₦9,363,317 |
| Ibadan | ₦6,167,494 | ₦8,232,044 |
| Osogbo (Osun) | ₦6,229,123 | ₦8,314,302 |
| Kano | ₦6,038,467 | ₦8,059,824 |
| Kaduna | ₦6,103,423 | ₦8,146,524 |
| Enugu | ₦6,360,023 | ₦8,489,021 |
| Benin City | ₦6,427,841 | ₦8,579,541 |
| Uyo | ₦6,685,327 | ₦8,923,219 |
| Jos | ₦6,169,472 | ₦8,234,684 |
| Riverine / creek site | ₦8,458,926 | ₦11,290,524 |
Related oil & gas rates
- O01 Line pipe 8" X52, 3LPE-coated: string, weld (100% RT), field-joint coat, lower-in and tie-in in prepared trench₦115,949 per m
- O02 Line pipe 12" X52, 3LPE-coated: string, weld (100% RT), field-joint coat, lower-in and tie-in in prepared trench₦191,124 per m
- O03 Line pipe 24" X52, 3LPE-coated: string, weld (100% RT), field-joint coat, lower-in and tie-in in prepared trench₦456,678 per m
- O04 Pipeline trench excavation 1.0m wide x 1.5m deep by excavator, spoil alongside₦4,483 per m
- O05 Backfill pipeline trench with 300mm sand padding and excavated material, compacted₦4,969 per m
- O06 Hydrostatic test, dewatering and drying of 12" pipeline₦552 per m
- O07 HDD river/road crossing for 12" X52 3LPE pipeline incl. drilling fluid₦392,688 per m
- O08 Magnesium anode 17lb installed with cable and test post share₦180,520 per unit
- O10 Pipeline marker post set in concrete₦48,573 per unit
- O11 Underground fuel tank 33,000L installed: excavation, sand surround, concrete anchor slab₦11,079,138 per unit
- O12 Fuel dispenser installed with 6m 2" seamless product line and electrics₦12,285,101 per unit
- O13 Fuel station canopy: steel frame, aluminium roof and ACP fascia₦109,158 per m²
- O14 Abrasive blast clean to Sa2.5 and apply 3-coat epoxy system to steelwork₦38,872 per m²
- O15 Radiographic testing of pipeline weld (service, incl. film)₦35,573 per unit
- O16 Fabricate and erect steel storage tank shell/bottom/roof, per tonne of plate₦2,536,956 per tonne
- O17 Install 12" pig launcher/receiver incl. tie-in welds₦85,195,000 per unit
Frequently asked questions
How much does install 12" ANSI 150 gate valve with 2 weld-neck flanges, gaskets and bolting cost per unit in Nigeria?
About ₦6,506,061 per unit net in Abuja as at 15 October 2026, or about ₦8,683,945 per unit as a tender rate including overheads, contingency, profit and VAT (Buildocrat Nigeria Construction Rate Book).
What is the rate in Lagos?
Applying Buildocrat's Lagos location factors, the net rate is about ₦6,896,320 per unit and the tender rate about ₦9,204,842 per unit.
What does the rate include?
Materials (Gate valve cast steel ANSI 150 RF 12" (API 600), Low-hydrogen electrode E7018, Radiographic weld test, Spiral-wound gasket 12" cl150/300 (SS316/graphite), Stud bolt set B7/2H for 12" cl150 flange joint, Weld-neck flange ANSI 150 RF 12") with waste allowances; labour (Pipe fitter, Pipeline welder (6G coded), Rigger / banksman, Unskilled labourer) at all-in rates including feeding, transport, idle time and statutory costs; and plant (Mobile crane 25t) including fuel and operator. Overheads, profit and VAT are excluded from the net rate.
How to cite: Buildocrat, Nigeria Construction Rate Book, https://rates.buildocrat.store/rates/o09-install-12-ansi-150-gate-valve-with-2-weld-neck-flanges/, prices as at 15 October 2026.