Iri tegeko rireba ishyirwaho ry’amavali yo mu irembo, amavali yo guhagarara, amavali yo mu mupira, amavali y’ibinyugunyugu n’amavali agabanya umuvuduko mu nganda zikora peteroli. Ishyirwaho ry’amavali yo kugenzura, amavali yo kurinda umutekano, amavali yo kugenzura n’imitego y’umwuka bigomba kwerekeza ku mabwiriza ajyanye nabyo. Iri tegeko ntirireba ishyirwaho ry’amavali ku miyoboro y’amazi yo munsi y’ubutaka n’imiyoboro y’amazi.

1 Amahame agenga imiterere y'ingufu

1.1 Valve zigomba gushyirwaho hakurikijwe ubwoko n'ingano bigaragara ku gishushanyo mbonera cy'imiyoboro n'ibikoresho (PID). Iyo PID ifite ibisabwa byihariye ku hantu valve zimwe na zimwe zishyirwa, zigomba gushyirwaho hakurikijwe ibisabwa mu buryo bwo kuzishyiraho.

1.2 Amavalu akwiye gushyirwa ahantu horoshye kuhagera, gukoresha no kubungabunga. Amavalu agenewe imirongo y'imiyoboro agomba gushyirwa mu buryo buri hagati, kandi hagomba kwitabwaho urubuga cyangwa urwego rw'imikorere.

2 Ibisabwa kugira ngo ushyireho valve

2.1 Iyo inzira z'imiyoboro zinjira n'izisohoka, igikoresho gihujwe n'imiyoboro minini iri ku nzira z'imiyoboro y'uruganda rwose,valve zo kuzimyabigomba gushyirwaho. Aho balve zishyirwa hagomba gushyirwa hagati ku ruhande rumwe rw'agace k'igikoresho, kandi hagashyirwaho urubuga nkenerwa rwo gukoresha cyangwa urubuga rwo kubungabunga.

2.2 Valves zigomba gukoreshwa kenshi, gusuzumwa no gusimburwa zigomba gushyirwa ahantu horoshye kuhagera ku butaka, ku rubaraza cyangwa ku ngazi.Valve zikoresha amazi n'amashanyarazibigomba kandi gushyirwa ahantu horoshye kugera.

2.3 Valves zidakenera gukoreshwa kenshi (zikoreshwa gusa iyo zitangiye cyangwa zihagaze) zigomba gushyirwa ahantu hashobora gushyirwa urwego rw'agateganyo niba zidashobora gukoreshwa hasi.

2.4 Uburebure bw'igisenge cy'umugozi uvuye ku gice cyo gukoraho ni hagati ya mm 750 na 1500, kandi uburebure bukwiye ni

1200mm. Uburebure bw'imiyoboro idakenera gukoreshwa kenshi bushobora kugera kuri 1500-1800mm. Iyo uburebure bw'imiyoboro butashobora kugabanuka kandi hakenewe gukoreshwa kenshi, hagomba gushyirwaho urubuga cyangwa intambwe mu gihe cyo gushushanya. Imiyoboro y'imiyoboro n'ibikoresho by'ibikoresho byangiza ntigomba gushyirwa mu burebure bw'umutwe w'umuntu.

2.5 Iyo uburebure bw'uruziga rw'intoki rwa valve ruvuye ku buso bukoreshwa burenga 1800mm, hagomba gushyirwaho uburyo bwo gukora sprocket. Intera y'uruhererekane rw'uruhererekane uvuye ku butaka igomba kuba nka 800mm. Hagomba gushyirwaho urushundura kugira ngo rumanike impera yo hasi y'uruhererekane ku rukuta cyangwa inkingi iri hafi kugira ngo hirindwe ko rwagira ingaruka ku nzira.

2.6 Ku byerekeye valves zishyirwa mu muyoboro, iyo umupfundikizo w'umuyoboro ushobora gufungurwa kugira ngo ukore, urufunguzo rw'umuyoboro w'umuyoboro ntirugomba kuba ruri munsi ya mm 300 munsi y'umupfundikizo w'umuyoboro. Iyo ruri munsi ya mm 300, hagomba gushyirwaho agakoresho ko kwagura valves kugira ngo urufunguzo rwayo rube ruri munsi ya mm 100 munsi y'umupfundikizo w'umuyoboro.

2.7 Ku byerekeye valves zishyirwa mu muyoboro, iyo zigomba gukoreshwa hasi, cyangwa valves zishyizwe munsi y'igorofa ryo hejuru (urupangu),inkoni yo kwagura valve ishobora gushyirwahokuyigeza ku gipfundikizo cy'umuyoboro w'amazi, hasi, ku rukuta rwo kuyikoresha. Uruziga rw'inkoni yo kwagura rugomba kuba ruri kure ya mm 1200 uvuye ku buso bwo kuyikoresha. Valve zifite umurambararo muto cyangwa ungana na DN40 n'imiyoboro y'ubudodo ntizigomba gukoreshwa hakoreshejwe sprockets cyangwa inkoni zo kwagura kugira ngo hirindwe kwangirika kwa valve. Ubusanzwe, ikoreshwa rya sprockets cyangwa inkoni zo kwagura mu gukoresha valve rigomba kugabanywa.

2.8 Intera iri hagati y'uruziga rw'amaboko rwa valve rukikije urubuga n'inkombe zarwo ntigomba kurenza mm 450. Iyo inkingi ya valve n'uruziga rw'amaboko bigeze mu gice cyo hejuru cy'urubuga kandi uburebure bukaba buri munsi ya mm 2000, ntibigomba kugira ingaruka ku mikorere n'inzira y'umukoresha kugira ngo birinde imvune ku muntu.

3 Ibisabwa mu gushyiraho valve nini

3.1 Imikorere ya vali nini igomba gukoresha uburyo bwo kohereza vitesi, kandi umwanya ukenewe mu buryo bwo kohereza vitesi ugomba kwitabwaho mu gihe cyo gushyiraho. Muri rusange, vali zifite ingano irenga ikurikira zigomba gutekereza gukoresha vali ifite uburyo bwo kohereza vitesi.

3.2 Vali nini zigomba gushyirwaho udukingirizo ku mpande imwe cyangwa zombi z'ivali. Agakingirizo ntigakwiye gushyirwa ku muyoboro mugufi ugomba gukurwaho mu gihe cyo kubungabunga, kandi inkunga y'umuyoboro ntigomba kugira ingaruka iyo vali ikuweho. Intera iri hagati y'agakingirizo n'agakingirizo k'ivali muri rusange igomba kuba irenga mm 300.

3.3 Aho bande nini zishyirwa hagomba kuba hari aho zikoreshwa, cyangwa se hagatekerezwa gushyiraho inkingi cyangwa inkingi yo kumanika.

4 Ibisabwa mu gushyiraho valve ku miyoboro itambitse

4.1 Keretse iyo bibaye ngombwa ukundi, urukiramende rw'ingufu rwashyizwe ku muyoboro utambitse ntirugomba kuba rureba hasi, cyane cyane urukiramende rw'ingufu rwa nyufu rwa nyufu rwa nyufu rwa nyufuru ntirugomba kureba hasi. Icyerekezo cy'urukiramende rw'ingufu rugenwa mu buryo bukurikira: hejuru uhagaze; utambitse; hejuru uhagaze ufite uburebure bwa 45° ibumoso cyangwa iburyo; hasi uhagaze ufite uburebure bwa 45° ibumoso cyangwa iburyo; ntabwo ruhagaze ruhagaze.

4.2 Ku byerekeye valve zizamuka zishyirwaho mu buryo butambitse, iyo valve ifunguwe, valve ntabwo igomba kugira ingaruka ku nzira, cyane cyane iyo valve iherereye ku mutwe cyangwa mu ivi ry'uyikoresha.

5 Ibindi bisabwa kugira ngo ushyireho valve

5.1 Imirongo yo hagati y'amavali ku miyoboro iteganye igomba gushyirwa ku murongo uko bishoboka kose. Iyo amavali ashyizwe iruhande, intera iri hagati y'amapine y'amaboko ntigomba kuba munsi ya mm 100; amavali ashobora kandi guterwa mu buryo bunyuranye kugira ngo agabanye intera iri hagati y'imiyoboro.

5.2 Vali zisabwa guhuzwa n'umunwa w'umuyoboro w'ibikoresho muri iki gikorwa zigomba guhuzwa neza n'umunwa w'umuyoboro w'ibikoresho mu gihe uburebure bwa nomero, igitutu cya nomero, ubwoko bw'ubuso bwo kuziba, nibindi bisa cyangwa bihuye n'umunwa w'umuyoboro w'ibikoresho. Iyo vali ifite umunwa ugoranye, umuhanga mu by'ibikoresho agomba gusabwa gushyiraho umunwa ugoranye ku munwa w'umuyoboro ujyanye nayo.

5.3 Keretse hari ibisabwa byihariye kuri icyo gikorwa, valves zo hasi ku miyoboro y’ibikoresho nk’iminara, imashini zitanga amashanyarazi, n’ibikoresho bihagaze ntibigomba gushyirwa mu gitambaro.

5.4 Iyo umuyoboro w'ishami uvanywe mu muyoboro mukuru, valve yawo yo kuzimya igomba kuba iri ku gice kitambitse cy'umuyoboro w'ishami hafi y'umuzi w'umuyoboro mukuru kugira ngo amazi ashobore gusohoka ku mpande zombi z'umuyoboro.

5.5 Valve yo kuzimya imiyoboro y'amashami ku gasanduku k'imiyoboro ntikunze gukoreshwa (ikoreshwa gusa mu gihe cyo guparika imodoka mu rwego rwo kuyibungabunga). Niba nta ngazi ihoraho ihari, hakwiye kwitabwaho ahantu ho gukoresha urwego rw'agateganyo.

5.6 Iyo valve ifite umuvuduko mwinshi ifunguwe, imbaraga zo gutangira ziba nini. Hagomba gushyirwaho agace gafasha valve kandi kagabanye umuvuduko wo gutangira. Uburebure bwo gushyiraho bugomba kuba hagati ya mm 500-1200.

5.7 Utwuma dutanga amazi yo kuzimya umuriro, utwuma dutanga umwuka w'umuriro, nibindi biri mu nkengero z'igikoresho bigomba gutatanywa kandi bigashyirwa ahantu hizewe horoshye ku bakoresha mu gihe habaye impanuka.

5.8 Itsinda ry'abafunga ry'umuyoboro ukwirakwiza umwuka ucana umuriro w'itanura rishyushya rigomba koroha gukoresha, kandi umuyoboro ukwirakwiza umuriro ntugomba kuba munsi ya metero 7.5 uvuye ku gice cy'itanura.

5.9 Mu gushyiramo valves zifite imigozi ku muyoboro, hagomba gushyirwaho agace koroshye hafi ya valve kugira ngo byoroshye kuyikuraho.

5.10 Valve za Wafer cyangwa valve z'ibinyugunyugu ntizigomba guhuzwa neza n'ibice by'izindi valve n'ibice by'imiyoboro. Umuyoboro mugufi ufite ibice by'imiyoboro ku mpera zombi ugomba kongerwamo hagati.

5.11 Valve ntigomba gushyirwaho imitwaro yo hanze kugira ngo hirindwe umuvuduko ukabije no kwangirika kwa valve