MODULE, HOSES, 500 m + couplings, 3"

Definition

3" hoses for motor pump and water tank kits, used to transport water over prolonged lengths during emergencies and short-term programs.

Can also be used in combination with the modules "water distribution" and "additional hoses" (see related articles below) to set up an extensive distribution network (by gravity or by means of a motor pump).

Indications

The module contains 500 meters of food grade quality, 3" ND80, flat hose with set Guillemin couplings, and separate T-couplings + gate valves.

Instructions for use

Particularly useful when pumping, storage, treatment and distribution are performed at considerable distances from each other.

Before ordering, make a drawing of the water distribution system and estimate the length of hose required.

Flat hoses are sensitive to punctures, shocks and sunlight. They can be laid in narrow shallow protective trenches. Anchoring of the system at bends can also be done by using reinforcing bars and concrete.

For long term use, PE or even PVC pipes are a better choice as they can be buried and protected more easily.

The table below shows the maximum flows that can be expected at the end of a pipeline using 30 m³/h and 60m³/h standard pumps on a flat surface. Be aware however that the actual flows can be a lot lower, e.g. when the hoses kink or on a sloping ground.

SETUP	60m³/h	30m³/h
Q (pipe 10 m)	60 m³/h	30 m³/h
Q (pipe 500 m)	40 m³/h	23 m³/h
Q (pipe 1000 m)	19 m³/h	17 m³/h
Q (pipe 2000 m)	11 m³/h	13 m³/h

To produce an adequate flow at the discharge point, the best option is to use a high pressure pump (KWATKPUD18H); but it is also possible to run two pumps in series.

Should two pumps be connected in series then it is important that the following starting and stopping regime is followed to prevent water hammering: P1 => P2 => GV

(=>: flow direction, P1: pump 1, P2: pump 2, GV: gate valve)

Starting regime:

The gate valve is nearly completely closed
P1 start and idle
P2 start and idle
P1 rev up
P2 rev up
Open the gate valve (slowly)

Stopping regime:

Close the gate valve (not completely) until hissing sound is heard
P2 rev down
P1 rev down
P2 stop
P1 stop

For more detailed information and instructions see also "Public Health Engineering in Precarious Situations", MSF, 2^nd edition, 2010:

T.B. 2.30 Pipes for potable water supply
T.B. 2.31 Head losses
T.B. 2.32 Calculation of a simple pipeline
T.B. 2.33 Pipe installation,

as well as the Manual installation of Guillemin couplings (MSF).

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Label	Account
HS Code
Status	Standardisation
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OC subscriptions: included in supply or field order tools (e.g. UniField)	OCA OCB OCBA OCG OCP
SC subscriptions: included in supply or field tools	MSF Supply MSF Log APU Casier Départ KSU
OC validations: approved for procurement and use by an OC for international or local orders specifying context and activity in Medical Standard Lists (MSL)	OCA OCB OCBA OCG OCP

CWATASSYH03	STD	ASSEMBLY T-coupling, 3" + half-couplings + lock	2	mandatory
CWATASSYV03	STD	ASSEMBLY gate valve, 3" + couplings + lock	2	mandatory
CWATBANDH85	STD	BAND CLIP high pressure, Ø 80-85mm, simple tightening	5	mandatory
CWATCSEM03IG	STD	(symmetrical half-coupling) GASKET, 3"	5	mandatory
CWATCSEM32IL	STD	REDUCER HALF-COUPLING symmetrical, 3"-2" + lock	2	mandatory
CWATCSEMG73L	STD	REDUCER HALF-COUPLING symmetrical, 3"-75mm, grooved + lock	5	mandatory
CWATCSEMP3IC	STD	(symmetrical half-coupling) PLUG, 3" + chain + lock	2	mandatory
CWATHOFD3505H	STD	HOSE flat, 3", NP15, 50m, delivery + 2 mounted couplings	10	mandatory
CWATTOOLH23	STD	HOOK SPANNER, 2"-3", for Guillemin coupling	2	mandatory
PTOOWRENS0136	STD	OPEN-SOCKET WRENCH 6x6 point 90°, 13mm, metric, 75.13	1	mandatory

MODULE, HOSES, 500 m + couplings, 3"

1.00 € 1.0 EUR 1.00 €

1.00 €