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UPvc Pipes & Fittings

Pvc Raiser Column Pipes

>	No Leakage
>	No Rusting
>	No Deposition
>	Light Weight
>	Easy & Fast Installation
>	High Tensile Strength
>	Longer Life
>	Overall Economy
>	Recommended from 200 to 1000 Feet Depth

Based on market demand of quality pipes for submersible & Jet pumps Tembo is now introducing

Advantages :

Leak Proof Joints : Specially designed square threads & rubber gaskets totally eliminates the chances of leakage & hence joints are 100% leak proof.

Hygienic : As uPVC is immune to galvanic or electrolytic corrosion neither the pipe affects in any way the water passing through it nor water affects the pipe & hence there is no possibility of any contamination.

High Flow Rate : Mirror smooth inside surface & corrosion resistance property ensures high flow rates & thus brings an end to the problem of deposition normally experienced with G.I. Pipes. Also, it results in power saving.

Light Weight : Being extremely light in weight, handling & installation becomes much easier.

Longer Life : Tembo submersible pipes are manufactured from high quality PVC resin with latest state of the art technology maintaining very high quality standards and as these pipes are corrosion resistant and they last for life time.

High Load Carrying Capacity : These pipes have very high load carrying capacity and are recommended up to 550 feet depth subject to total load carrying capacity.

Overall Economy : As compared to G.I. pipes, Tembo submersible pipes are highly economical due to lesser material cost, transportation cost & longer life.

Installation Procedure :

>	Primarily ensure that rubber gaskets provided with pipes are fitted in groove of external square threads of pipes.
>	Assemble the adapter with pump.
>	Tighten one pipe to another with help of jerk/torque so that more than 50% of rubber seal gets into the internal threads of socket of adjacent pipe. It is recommended to use strap wrench for assembly to avoid damage to the pipe.
>	Ensure that metal clamp is fitted on the pipe at location marked "clamp here only"
>	While joining one pipe to another, keep on lowering in bore well with the help of chain pulley.
>	After lowering for required depth, fix the metal adapter on top of the last pipe.
>	Connect fittings & clamping system as per your requirement.
>	Based on soil conditions it is recommended to use pump guard for pump safety.

Size (inch)	Nominal Diameter(mm)	Outer Diameter (mm)	Standard Length (mm)	End Connections	Load Carrying Capacity in Kgs
1"	25	33	3000	Belled female & male	1500
1^1/4	32	42	3000	-	1800
1^1/2	40	48	3000	-	2000
2	50	60	3000	Coupler female & Male	2400
2 ^1/2	65	75	3000	-	3000

Comparative Chart

Material property requirement for Column pipes	Tembo Pipes	Mild Steel or Galvanized Steel Pipes	HDPE Pipes
Rigidity requirement so that column pipes & pump is vertical for proper NRV faction	Pipes are rigid	Pipes are rigid	Pipes are flexible hence not suitable for column application . Pipes are also soft & over long term use with heavy pump set they elongate & loose their shape permanently. In the process of elongation they become thin & break.
Strong threaded joints required for holding the column & submersible pump load & leak proof joints required for saving every drop of water	Specially designed square threads have very high load holding capacity & these threads do not corrode or rust or decorate even up to 50years of use. Special rubber seals are provided with the thread to ensure100% leak proof at high pump pressure.	The threads are prone to corrosion & rusting .Since the threads do not have layer of Galvanization , after2-3 years of use the old thread have to be made on the pipes on lathe machine due to rusting problem . The users ends up with a short pipe ,money & effort spent for making new threads are not pressure tight and do not have any rubber sealing system.	The threads cannot be formed as these pipes are soft and therefore the jointing of the pipe with the pump or at the top with any fixture is simple push type joint & are very weak and open up during use.

Material property requirement for Column pipes	Tembo Pipes	Mild Steel or Galvanized Steel Pipes	HDPE Pipes
Head loss due to internal friction	Pipes are rigid	Pipes are rigid	Internal Surface not as smooth as Tembo Pipes.
Weight of pipe & ease of handling	Specially designed square threads have very high load holding capacity & these threads do not corrode or rust or decorate even up to 50years of use. Special rubber seals are provided with the thread to ensure100% leak proof at high pump pressure.	The threads are prone to corrosion & rusting .Since the threads do not have layer of Galvanization, after2-3 years of use the old thread have to be made on the pipes on lathe machine due to rusting problem . The users ends up with a short pipe ,money & effort spent for making new threads are not pressure tight and do not have any rubber sealing system.	Becomes hard and can not be rolled back during removal. Pulling with tractor disturbs the crop.
Long life	Tembo column pipes do not react with acidic or alkaline water and also have a very long life inside the bore well	Steel pipes are prone to rusting, corrosion & ultimately they get damaged and have to be replaced very quickly.	Strength of material being very lass, very thick pipes are required for high pressure application. This reduces the internal area for water flow considerably. Hence thin pipes are used for high pressure application and the pipes burst in 2-3 yrs.

Features

Special technical features of Tembo high tensile, high impact submersible column pipes.

Square Threads

The joint of pipes have been specially designed with square threads & rubber rings to ensure proper gripping ,no chance of slipping & 100% leak proof joint. These threads are high friction threads on load, which do not open even on constant forward and reverse torque generated by starting & stopping the pump.They are made on specially imported CNC machines with special tools to ensure perfect dimensions and good & easy fitment. All threads are checked thoroughly with special tools or ensure perfect dimensions and good & easy fitment. All threads are checked thoroughly with special gauges to ensure 100% accuracy.

Wire Lock
Wire lock coupler design : (WIRE LOCK: The Guarantee for your Pump Safety ) The couplers are fitted on the pipe sizes from 48 mm OD (5"). The couplers are locked with special wire lock system (applied for patent) to ensure that during installation and removal of pumps the coupler does not come out, resulting in column slippage. The wire lock system with the unique design made by only Tembo Pipes Pvt.Ltd., is a further development of the product.

Load & Pressure Technical Chart

Technical chart for all sizes and types of Tembo column pipes from 1" up to 5" has been given here below, which shows the ultimate breakage load of pipes, safe pulling load with chain pulley or crane and also the safe allowable hydro static pressure to be used in the pipes.

TYPE & SIZE OD - Outside Dia NB - Nominal Bore	Ultimate breaking load	Safe pulling load with chain pulley	Safe allowable hydrostic pressure(kg/cm2)	Safe Total Pump Delivery Head (m)
OD : 33mm (1") NB: 25mm V4 (10 Kg/cm²) V4 (15 Kg/cm²) Medium Standard	600 kgs 1000 kgs 1400 kgs 1800 kgs	400 700 770 1300	10 15 16 30	100 150 160 300
OD : 42mm (11/4") NB: 32mm V4 (10 Kg/cm²) V4 (15 Kg/cm²) Medium Standard Heavy	1000 kgs 1500 kgs 2100 kgs 2600 kgs 3100 kgs	700 1000 1200 1500 1550	10 15 15 25 35	100 150 150 250 350
OD : 48 mm (11/4") NB: 40mm V4 (10 Kg/cm²) V4 (15 Kg/cm²) Medium Standard Heavy	1200 kgs 2000 kgs 2500 kgs 3000 kgs 4000 kgs	800 1200 1300 1700 2000	10 15 15 26 35	100 150 150 260 350
OD : 60mm (2") NB: 50mm Medium Standard Heavy Super Heavy	2800 kgs 3800 kgs 4700 kgs 5600 kgs	1500 2100 2850 3500	13 20 27 35	130 200 270 350
OD : 75mm (21/2") NB: 65mm Medium Standard Heavy	3500 kgs 5000 kgs 7000 kgs	1900 2700 4200	10 16 26	100 160 260
OD : 88mm (3") NB: 80mm Medium Standard Heavy	5000 kgs 7000 kgs 9500 kgs	2750 4000 5700	11 17 26	110 170 260
OD : 113mm (4") NB: 100mm Medium Standard Heavy	7500 kgs 10300 kgs 1600 kgs	4100 5700 9500	10 15 26	100 150 260
OD : 140mm (5") NB: 125mm Standard	1600 kgs	9000	16	160

Typical Load Technical Chart

Technical comparison fro total load on the top pipe and ultimate breakage load of Ashirwad standard pipes.
This is just an indication of the loads to explain that in the design of the pipes adequate factor of safety has been considered.

SIZE	Weight of Pipe 500 Feet	Weight of Water Column in 500 ft Pipe	Weight of pump Approx Maximum	Total Weight	Ultimate Breaking Load of Tembo Hi-Tech Hi-Tensile Submersible Pump Pipes
	in kg	in kg	in kg	in kg	in kg
33mm OD (1")	82	75	100	257	1800
42mm OD (11/4")	113	135	100	348	2600
48mm OD (11/2")	132	190	125	447	3000
60mm OD (2")	166	320	150	636	3800
75mm OD (21/2")	216	530	200	946	5000
88mm OD (1")	303	720	250	1273	7000
113mm OD (4")	240	1225	300	1975	10300

Note: The total weight of the assembly is considerably reduced due to buoyancy when immersed in Bore well water. This is not considered above.

Frictional Head Loss

Approx. frictional head lost in steel pipe head lost in m.per 100 m discharge in lpm

Pipe Nominal Bore

Q lmp (nominal dia mm)	40	50	65	80	100
40	1.15	0.38	0.10	0.03	0.01
60	2.57	0.84	0.22	0.08	0.03
80	4.48	1.50	0.40	0.14	0.05
100	7.16	2.36	0.63	0.22	0.07
120	10.30	3.38	0.91	0.32	0.11
150	16.10	5.30	1.42	0.50	0.17
180	23.20	7.60	2.05	0.72	0.24
240	41.25	13.52	3.64	1.29	0.42
300	64.45	21.12	5.56	2.01	0.66
360	-	30.41	8.19	2.90	0.95
400	-	37.55	10.11	3.58	1.17
500	-	-	15.80	5.59	1.83

Friction in long pipeline is to be calculated. Technical chart - 4 gives friction losses per100 meter of pipeline for Tembo Colum Pipes & Technical chart -5 give frictional head loss for steel pipes. From table it can be seen that higher diameter pipes have lower frictional head loss. This helps to reduce load on pump and thus increase its life. Following examples will help you to calculate friction head different length.

Calculation

1. head Loss & discharge comparison for 2" (60 mm OD) Tembo Standard Column pipes & Gl pipe for installation at 450ft (137 meters) depth.

Considering that water will not be lifted higher than the ground level

(i) Head Loss due to depth of pump =137 meters = 450 ft both incase of Tembo Column pipes & steel pipes.

(ii) Head Loss due to friction in Tembo Column pipes as per technical chart-4

taking working range of discharge as 18m3/hr for

18m3/Hr=300 lpm

As per Technical chart 4 frictional head loss is= 7.71 meters/100 meters of depth for 2" (60 mm Tembo Standard Pipes For 137 meters frictional Head loss 137/100 X 7.71 = 10.56 meters

Total head load on pump with Tembo Column pipe = 137 + 10.56 = 147.5meters

(ii) Head loss due to friction in Steel pipes As per Technical chart 5 = 21.12 mtrs/100 mtrs

For 137 meters frictional =137/100 X 21.12 mtrs.

Head loss = 28.93 mtrs.

Total head load on pump with Steel pipes = 137 + 28.93 =165.93 mtrs.

In the same working condition the head load on pump is different than case of Tembo column pipes and steel pipes.

As per pump chart 10% to 30% extra water discharge is available with Tembo column pipe in comparison to steel pipes depending upon depth and discharge of pump

This means great power saving and less pumping time.

2) Even combination of Tembo Standard and Heavy pipes have lesser frictional Head than steel pipes.

It has been debated that Tembo heavy pipes have lesser Internal diameter because of more thickness and therefore water discharge will be less in comparison with seal pipe.

Comparison of Technical chart 4 & 5 shows that Tembo Super Heavy Pipes also have lesser frictional loss compared to steel pipes. Even 2" super heavy pipe has almost 33% lesser frictional loss than 2" steel pipe.

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