250mm Deep PVC Casing Pipe for Water Well Drill Rig

Product Description

Technology Parameters

Size (Out Diameter)		(0.80 Mpa)		(1.0 Mpa)		(1.25 Mpa)		(1.6 Mpa)		(2.0 Mpa)
mm	Inch	Weight	Thickness	Weight	Thickness	Weight	Thickness	Weight	Thickness	Weight	Thickness
		Kgs/m	mm	Kgs/m	mm	Kgs/m	mm	Kgs/m	mm	Kgs/m	mm
40	1.25			0.41	2	0.47	2.4	0.56	3	0.68	3.7
50	1.5	0.5	2	0.58	2.4	0.72	3	0.85	3.7	1.06	4.6
63	2	0.79	2.5	0.95	3	1.15	3.8	1.41	4.7	1.68	5.8
75	2.5	1.07	2.9	1.3	3.6	1.63	4.5	1.9	5.6	2.39	6.9
90	3	1.53	3.5	1.88	4.3	2.33	5.4	2.8	6.7	3.41	8.2
110	4	1.87	3.4	2.23	4.2	2.82	5.3	3.4	6.6	4.2	8.1
125	4.5	2.41	3.9	2.95	4.8	3.33	6	4.44	7.4	5.4	9.2
160	6	3.89	4.9	4.8	6.2	5.97	7.7	7.24	9.5	8.87	11.8
200	8	6.14	6.2	7.3	7.7	9.31	9.6	11.19	11.9	13.84	14.7
225	9	7.69	6.9	9.1	8.6	11.97	10.8	14.41	13.4	17.53	16.6
250	10	9.51	7.7	11.4	9.6	14.4	11.9	17.7	14.8	21.61	18.4
280	11	11.88	8.6	14.7	10.7	18.2	13.4	22.19	16.6	27.08	20.6
315	12	15.09	9.7	18	12.1	22.89	15	28.17	18.7	34.31	23.2

Application
Technology Design

1. Discharge Pipe Well Head

2. Concrete Slab For The Well
House Foundations

3. PVC Pump Chamber Casing

4. Pumping Water Level In The Borehole

5. Cement Or Bentonite Grout
Sealing The Annulus Around
The Pump Chamber Casing

6. Electric Submersible Pump

7. Water Inflow To The Pump Intake

8. PVC Well Screen

9. Gravel Filter Pack Filling
The Annulus Around The Well Screen

10. Groundwater Is Drawn
Through The Screen Slots And
Flows Up To The Pump Intake

11. Groundwater Flows Through
The Sand And Gravel Aquifer
To The Well Screen

Advantages
Pictures

Tensile Strength
The tensile strength required can be calculated on the basis of pipe weight. In addition to the pipe weight, gravel that gets stuck in the joints during the assembly and settlement phase should be considered in design calculations. The lower load bearing capacity of screen pipes with slots should be considered when developing the well or when pumping (due to large differences in water level). The effect of such pressures cannot be precisely determined. When sinking pipes through clay layers, additional compressive forces are exerted due to swelling clays. This can happen at any depth and in extreme cases may cause considerable strain on the material surface. The values indicated in the tables of this brochure are based on the minimum wall thickness of the pipes, their diameters and material composition.

Impact of Temperature
Temperature conditions prevailing during the laying of PVC-U well pipes will influence the mechanical properties of the material. High temperature between 30° C and 40° C as indicated by the creep strength in relation to time, the PVC-U material properties provide sufficient safety factor for the intended use. It is however important to determine the other influences while encasing the well pipes with concrete to seal the drill holes. The hydration heat of concrete can cause temperature increases. Calculations however show that these temperatures do not normally exceed 15°C.
With the temperature of unset concrete reaching approx. 18°C, the temperature within the seal will be slightly more than 30°C and that is within the optimum limits.

Packing & Delivery

FAQ

Q: Are you original manufacturer?

A: Yes, we JCDRILL is a official leading manufacture in drilling machinery in China and we have

the whole series products you need.

Q: Which payment terms are available to us?

A: T/T term or L/C term. On T/T term, 30% down payment is required in advance, and 70% balance shall be settled before
shipment.On L/C term, a 100% irrevocable L/C without "soft clauses" can be accepted.

Q: How long will the delivery time take?

A: Normally mud pump products will take about 3-15 days to produce the ordered machines. Most of the time, we can have
an immediate delivery of our regular machines in 15 days.

Q: How about after sales service?

A: 365×24 Year-round Service We are committed to year-round 24-hour service even during holidays, in line with our policy
of always providing "a response within 15 minutes and job completion within 24 hours."

Q: Spare parts when you need them?

A:We have spare parts centers across continents that stock specialist spare parts. We promise that spare parts will be
delivered within 72 hours or no more than one week.

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