Handpump,VLOM,Riser pipe,UPVC-SS,65ND,3m

General Description
U-PVC Riser pipe with SS couplings ND 65 mm, 3 m long, supplied in set with SS connecting rod, for India Mark III-65/VLOM 65 Hand-Pumps.

Technical Specifications
U-PVC/SS Riser pipe for use with India Mark III hand-pumps, composed of one u-PVC pressure pipe securely integrated with nominal diameter 65 mm (Rp 2"1/2) male threaded AISI 304L Stainless Steel (SS) ends.
The riser pipe set also comprise a SS pump rod and centralizers.

This combined UPVC/SS riser pipe shall be able to replace full length Stainless Steel pipes for use in corrosive water to fit India Mark III/VLOM65 deep well hand-pumps for installation depths up to 45 meters.

U-PVC RISER PIPE:
The U-PVC riser pipe shall be manufactured from 100% virgin Unplasticized Poly Vinyl Chloride (U-PVC) resin, dark grey or blue colour, designed for a service life of at least 50 years at 20 degrees Celsius, and with following pipe dimensions:
-OD 80mm
-ID not less than 65mm
-Wall thickness not less than 6mm
-Nominal pressure: 16 bar,
-Length: 2.9 meters

Manufactured in accordance with EN/ISO 1452-1/2:2009, certified non-toxic, suitable for drinking water, and exempt from CaCO3 and/or other strength weakening additives.
Pipe dimensions in accordance with ISO 4065:1996, tolerances, wall thickness, ovality, nominal pressure rating (PN), nominal outside pipe diameter (OD) etc. as per ISO 161-1:1996 and BS-EN/ISO 11922-1:1997, with deviation of wall thickness to be not less than 6 mm.
STAINLESS STEEL COUPLING:
Each U-PVC pipe is fitted with a fully integrated seamless SS coupling system, either composed by 2 short, male threaded SS connection pipes, one each end, and a female threaded SS coupling; or by one short, male threaded SS connection pipe, one end, and one female threaded SS pipe at the other end, both pieces fully integrated with the PVC pipe.

This pipe Coupling System shall be dimensioned with nominal diameter 65 mm (Rp 2"1/2) as per ISO 2853:1993, all made from seamless Stainless Steel AISI 304L (1.4307). The nominal diameter is established in compliance with RWSN/SKAT specifications for India Mark III Hand Pumps, Revision 2-2007.
Threading shall therefore comply with the riser pipe holder of such standard India Mark III/VLOM65 hand pumps.

To ensure full leakage proof, each joint shall be secured inside the assembly with a 5 mm rubber ring (O-ring) made of EPDM rubber or equivalent appropriate material as per ISO 4633:2002 and BS-EN-681, shore hardness of 60+/-5 IRHD or better.

The complete riser pipe shall be certified for use with drinking water, i.e. exempt from toxic components, e.g. exempt from Lead etc. (as minimum to latest WHO Guidelines, NSF, EN standards, WRAS, or equivalent national standards).

All certifications shall be from third party, official (State, National) or internationally recognized and referenced laboratory.

THREAD PROTECTION:
Threaded ends shall be protected under storage, handling and transport. If coupling composed with a loose female threaded SS coupling, this will be supplied fitted on one of the male threaded ends, and the other male end (in any/either case) shall be protected with a HDPE thread protector covering the entire length of the thread. Female ends to be protected with a plastic cover.

TESTING:
Hydrostatic strength values for the U-PVC pipe at 20 and 60 degrees Celsius tested as per ISO 1167-1/2:2006 requirements. However, at coupling level, in order to ensure resistance against water hammer and other operational vibrations, the manufacturing process for the mounted riser pipe couplings shall as minimum allow the system to be able to withstand an internal pressure of not less than 130 bars without any leakage (i.e. with factor 2 to the pressure test requirement for integral sockets on pipes as per EN/ISO 1452-2:2009), and to comply with a traction test of not less than 3900 Kg without any breakage of material or mounting.


SET ACCESSORIES:
Each riser pipe comes complete with:

-1 x Connecting rod, Stainless Steel, diameter 10.8 mm, in length of 3 meters (+10/-0mm), made of (18/8) AISI 304 (1.4300) stainless steel, with rolled M12 threads, both ends male threaded as per ISO 7, one end fitted with one SS female threaded coupling as per ISO 2853, and RWSN/SKAT specifications for India Mark III Hand Pumps, Revision 2-2007, the other end protected with a HDPE thread protector covering the entire length of the thread.

-1 x Rod centralizer made of nitrile rubber or similar, nominal diameter: 65 mm.

-1 x Centralizer, riser pipe

- And with following for each 100 pipes:
- 1 x hemp, 0.2 kg hank, for 100 riser pipes.
- 1 x tubes of alimentary grease for connecting rods

Packaging and labeling
At a minimum, as per Annex C: Clause 12.1 of Part 1 of IS 15500:2004, Recommended Packaging Procedure.

Weight/Volume/Dimensions
Estimated weight: 10.5kg
Estimated volume: 15.1cdm

Shipping Details
Correct packing must ensure safe sea and land shipment of goods (see also UNICEF Shipping Instructions).

Instructions for use
The riser pipe is for use in corrosive water to fit India Mark III/VLOM-65 deep well hand-pumps. This type of riser pipe is for use in lieu of full length Stainless Steel pipes for installation depths not exceeding 45 meters.
For greater depths, full length stainless steel riser pipes should be used.

Comments
Field offices must specify the minimum borehole diameter in order to enable the supplier to select the appropriate riser pipe centralizer.