TWS Backflow venna a ni

Backflow Preventer hnathawh dan tur

TWS backflow venna a nichu tui bawlhhlawh emaw, media dang emaw chu tui in tur supply system emaw, fluid thianghlim system emaw-a a kal lehna tur venna atana siam mechanical device a ni a, hei hian primary system him leh thianghlimna a tichiang a ni. A hnathawh dan tur chu a bul berah chuan combination ofcheck valve te a awm bawk, pressure differential mechanism, leh a châng chuan relief valve hmangin backflow laka “barrier” siam a ni. Hetah hian a chipchiar zawkin kan rawn tarlang e:

Check Valve pahnih a awm bawkMechanism hmanga thil tih dan
Berbackflow venna a niindependently acting check valve pahnih series-a dah te dah tel a ni. Check valve hmasa ber (inletcheck valve a ni) hian boruak pangngaiah fluid chu system chhungah hmalam pan turin a phal a, mahse backpressure a awm chuan a khar nghet hle a, downstream lam atanga reverse flow a veng thei a ni. A pahnihna chucheck valve a ni(pekchhuahnacheck valve a ni) chu secondary barrier angin a thawk a: a hmasa ber a nih chuancheck valve a nia hlawhchham a, a pahnihna chu backflow la awm zawng zawng block turin a activate a, chu chuan redundant layer of protection a pe a ni.

Pressure Differential enfiahna a ni
An pahnih inkarahcheck valve te a awm bawk, pressure differential chamber (or intermediate zone) a awm a. Normal operation hnuaiah chuan inlet side (upstream of the first check valve)-a pressure chu intermediate zone-a pressure aiin a sang zawk a, intermediate zone-a pressure chu outlet side (downstream of the second) aiin a sang zawk bawkcheck valve a ni). He pressure gradient hian check valve pahnih chu a inhawng reng a, hmalam panna tur a siamsak a ni.

Backflow a hnaih tawh chuan (eg, upstream pressure tlahniam nghal vang emaw, downstream pressure surge vang emaw) pressure balance a tibuai a ni. Check valve hmasa ber chu intermediate zone atanga inlet thlenga backflow awm loh nan a khar thin. Check valve pahnihna pawhin reverse pressure a hriat chuan outlet lam atanga intermediate zone thlenga backflow block turin a khar thin.

Relief Valve tihchak a ni
Backflow preventer tam takah chuan intermediate zone-a inzawm relief valve dah a ni. Check valve pahnih a chhiat emaw, intermediate zone-a pressure-in inlet pressure a pelh chuan (backflow risk awm thei a nihzia tilangtu) chuan relief valve chu a inhawng a, intermediate zone-a tui bawlhhlawh chu boruak (or drainage system)-ah a paih chhuak a ni. Hei hian tui bawlhhlawh chu tui thianghlim supply-ah a nawr leh thei lo va, primary system integrity chu a vawng reng a ni.

Automatic hmanga hnathawh theih a ni
A kalphung zawng zawng hi automatic a ni a, kut hmanga inrawlh a ngai lo. Device hian fluid pressure leh flow direction inthlak danglamna chu dynamically-in a chhang let a, operating condition hrang hrang hnuaiah backflow laka venhimna chhunzawm zel a ni.

Backflow Preventer te thatna te

Backflow venna tur a nimedia bawlhhlawh emaw, duh loh zawng emaw reverse flow venna hmangin fluid system, a bik takin tui in tur humhalh kawngah hmun pawimawh tak an chang a ni. An thatna pawimawh tak takte chu:

1. **Tui quality humhalh** .

A thatna ber chu tui in tur system leh in tur ni lo (eg, industrial wastewater, irrigation water, or sewage) inkara cross-contamination ven hi a ni. Hei hian tui in tur emaw, process fluid thianghlim emaw chu a bawlhhlawh lo tih a tichiang a, tui bawlhhlawh hman avanga hriselna atana hlauhawmna a ti tlem a ni.

2. **Regulatory zawm dan** .

Region tam zawkah chuan backflow preventer hi plumbing code leh health regulation (EPA emaw local water authority ang pawl emaw siam ang chi) hmanga tih tur a ni. An dah hian facility leh system-te chu dan anga thil phut a tlin theih nan a pui a, pawisa chawi emaw, hnathawhna khar emaw a awm lo.

3. **Redundancy leh rintlakna** .

Berbackflow venna a nidual check valve leh relief valve a awm a, hei hian redundant safety system a siam a ni. Component pakhat a chhiat chuan a dangte chu backup angin an thawk a, backflow hlauhawmna a ti tlem hle. He design hian pressure emaw flow condition danglam tak hnuaiah pawh performance mumal tak a siam thei a ni.

4. **Application hrang hranga hmanraw hrang hrang**

Setting hrang hrangah an insiamrem thei a, chutah chuan chenna in, sumdawnna, industry, leh municipal system-ah te pawh an insiamrem thei a ni. Plumbing network-ah emaw, irrigation system-ah emaw, industrial process line-ah emaw hman pawh ni se, backflow preventer hian fluid type (tui, chemical, etc.) emaw system size emaw thliar lovin backflow chu a titawp thei hle.

5. **Equipment chhiatna tihtlem** .

Reverse flow tihtawp hian backflow preventer te hian pump, boiler, water heater leh system component dangte chu backpressure emaw water hammer emaw (sudden pressure surges) avanga chhiatna lakah a venghim a ni. Hei hian hmanrua dam chhung a ti rei a, enkawlna senso a ti tlem bawk.

6. **Automatic hmanga hnathawh dan** .

Backflow venna tur a nikut hmanga inrawlhna tel lovin hnathawh a ni a, pressure inthlak emaw, flow reversal emaw a nih chuan a chhang nghal mai thin. Hei hian mihring enkawlna rinchhan lovin venhimna chhunzawm zel a tichiang a, mihring tel lo emaw, hla tak atanga system tan pawh a tha hle.

7. **A man tlawm zawk** .

Installation hmasa ber senso a awm laiin, hun rei tak chhunga sum khawlkhawm erawh a tam hle. Tui bawlhhlawh tihfai, hmanrua siamthat, regulatory penalty, leh tui bawlhhlawh nena inzawm hriselna lama thil thleng avanga liability awm thei te nena inzawm senso te an tihtlem a ni. A bul berah chuan, backflow preventers hi fluid-based application hrang hranga system integrity, public health, leh operational efficiency vawn that nan a pawimawh hle.