{"id":6310,"date":"2022-10-16T22:48:59","date_gmt":"2022-10-16T14:48:59","guid":{"rendered":"https:\/\/www.stvvalves.com\/?p=6310"},"modified":"2022-10-16T22:48:59","modified_gmt":"2022-10-16T14:48:59","slug":"duplex-stainless-steel-ball-valve-f51-4a-cd3mn-s31803-2205","status":"publish","type":"post","link":"https:\/\/www.stvvalves.com\/ro\/duplex-stainless-steel-ball-valve-f51-4a-cd3mn-s31803-2205\/","title":{"rendered":"Supap\u0103 cu bil\u0103 duplex din o\u021bel inoxidabil F51 4A CD3MN S31803 2205"},"content":{"rendered":"

Supapa cu bil\u0103 duplex din o\u021bel inoxidabil este un fel de supap\u0103 care poate fi deschis\u0103 \u0219i \u00eenchis\u0103 prin rotirea bila \u00een jurul liniei centrale a corpului supapei. Elementul de etan\u0219are este \u00eencorporat \u00een scaunul supapei. Un arc este fixat la cap\u0103tul scaunului metalic al supapei. C\u00e2nd suprafa\u021ba de etan\u0219are este uzat\u0103 sau ars\u0103, scaunul supapei \u0219i bila sunt \u00eempinse pentru a forma o etan\u0219are metalic\u0103 sub ac\u021biunea arcului. Are func\u021bia de reducere automat\u0103 a presiunii. C\u00e2nd presiunea medie din cavitatea supapei dep\u0103\u0219e\u0219te pre\u00eenc\u0103rcarea arcului, scaunul supapei de la cap\u0103tul de evacuare se retrage departe de bil\u0103 pentru a ob\u021bine efectul de reducere automat\u0103 a presiunii. Dup\u0103 reducerea presiunii, scaunul supapei se reseteaz\u0103 automat. Este potrivit pentru ap\u0103, solvent, acid, gaz natural \u0219i alte medii de lucru generale, dar \u0219i pentru medii cu condi\u021bii proaste de lucru, cum ar fi oxigenul, peroxidul de hidrogen, metanul \u0219i etilena. Este utilizat pe scar\u0103 larg\u0103 \u00een diverse industrii.
\nCaracteristicile structurale ale supapei cu bil\u0103 cu angrenaj melcat pentru gaz natural:<\/p>\n

\"duplex

Furnizor de supape cu bil\u0103 duplex din o\u021bel inoxidabil din China, fabrica\u021bie de supape cu bil\u0103 duplex din o\u021bel inoxidabil din China, fabrica de supape cu bil\u0103 duplex din o\u021bel inoxidabil<\/p><\/div>\n

1. Structura de etan\u0219are a scaunului supapei<\/strong>
\nScaunul supapei adopt\u0103 structura de design de etan\u0219are frontal\u0103, care are func\u021biile de etan\u0219are \u00een dou\u0103 sensuri \u0219i de reducere automat\u0103 a presiunii \u00een camera de mijloc. Scaunul de etan\u0219are \u00eencorporat cu materiale de etan\u0219are este plutitor, care este \u00eenc\u0103rcat de arc. C\u00e2nd se afl\u0103 \u00een pozi\u021bia \u00eenchis\u0103, suprafa\u021ba de etan\u0219are p\u0103streaz\u0103 \u00eentotdeauna un contact str\u00e2ns cu bila pentru a se asigura c\u0103 supapa poate ob\u021bine etan\u0219area scurgerilor la diferen\u021be de presiune \u00eenalte \u0219i joase.
\n2. Structura automat\u0103 de reducere a presiunii<\/strong>
\nC\u00e2nd presiunea din camera de mijloc cre\u0219te anormal, supapa cu bil\u0103 cu structur\u0103 de etan\u0219are unic\u0103 are func\u021bia de reducere automat\u0103 a presiunii, \u00een timp ce supapa cu bil\u0103 cu structur\u0103 de etan\u0219are dubl\u0103 are o presiune suplimentar\u0103 pe corpul supapei
\n3. Func\u021bie de salvare de urgen\u021b\u0103 sigilat\u0103<\/strong>
\nSupapa este proiectat\u0103 cu sistem auxiliar de etan\u0219are de urgen\u021b\u0103 a scaunului supapei. Odat\u0103 ce suprafa\u021ba de etan\u0219are este deteriorat\u0103, etan\u0219antul corespunz\u0103tor poate fi injectat \u00een sistemul auxiliar de etan\u0219are pentru salvare de urgen\u021b\u0103, iar zona scaunului supapei poate fi, de asemenea, sp\u0103lat\u0103 \u0219i lubrifiat\u0103 prin sistemul auxiliar atunci c\u00e2nd este necesar.
\n4. Dispozitiv antistatic<\/strong>
\nLa ac\u0163ionarea supapei, sarcinile electrostatice vor fi generate \u015fi acumulate \u00een linia bilei din cauza frec\u0103rii dintre scaunele bilei. Pentru a preveni sc\u00e2nteile electrostatice, dispozitivele antistatice sunt special montate pe supap\u0103 pentru a exporta electricitatea static\u0103 generat\u0103 (v\u0103 rug\u0103m s\u0103 contacta\u021bi v\u00e2nz\u0103torul nostru pentru instruc\u021biuni detaliate).
\n5. Structur\u0103 ignifug\u0103<\/strong>
\nScaunul supapei cu bil\u0103 fix\u0103 al companiei noastre adopt\u0103 structura. \u00cen caz de incendiu, atunci c\u00e2nd materialul nemetalic al suprafe\u021bei de etan\u0219are este ars, inelul metalic folose\u0219te for\u021ba arcului pentru a \u00eempinge scaunul supapei \u0219i bila pentru a se potrivi \u0219i etan\u0219a, astfel \u00eenc\u00e2t s\u0103 previn\u0103 r\u0103sp\u00e2ndirea focului \u0219i scurgerea mediului. (Designul structurii de protec\u021bie \u00eempotriva incendiilor trebuie s\u0103 respecte API607, JB\/T6899 \u0219i BS755)
\n6. Structur\u0103 cu alezaj complet \u0219i structur\u0103 cu alezaj redus<\/strong>
\nPentru a satisface nevoile utilizatorilor, compania noastr\u0103 are supape cu bil\u0103 cu pas complet \u0219i supape cu pas redus. Diametrul interior al \u021bevii supapelor cu bil\u0103 cu pas complet este \u00een concordan\u021b\u0103 cu diametrul interior al \u021bevii, care este u\u0219or de cur\u0103\u021bat. Supapele cu bil\u0103 cu alezaj redus sunt u\u0219oare, iar rezisten\u021ba la fluide este doar o parte a supapelor glob de acela\u0219i calibru, care are o perspectiv\u0103 larg\u0103.
\n7. Dispozitiv de refulare a corpului supapei<\/strong>
\nSupapa de scurgere poate fi instalat\u0103 pe corpul supapei supapei cu bil\u0103 \u00een func\u021bie de cerin\u021bele clientului. Odat\u0103 ce ambele capete ale supapei sunt \u00eenchise, presiunea acumulat\u0103 \u00een camera supapei poate fi desc\u0103rcat\u0103 prin supapa de scurgere a corpului supapei.
\n8. Dispozitiv de tij\u0103 de supap\u0103 extins\u0103 (op\u021bional)<\/strong>
\nPentru supapele cu bil\u0103 \u00eengropate, pot fi furnizate dispozitive de extensie, inclusiv tije de supap\u0103, supape de injec\u021bie de gr\u0103sime, supape de scurgere etc. \u00cen\u0103l\u021bimea extins\u0103 (lungimea se refer\u0103 \u00een general la distan\u021ba de la centrul canalului supapei la centrul dispozitivului de operare)
\nStandarde adoptate pentru robinetul melcat pentru gaze naturale: GB, ANSI, DIN, JIS<\/p>\n

Ce este o\u021belul inoxidabil duplex?<\/strong>
\nO\u021belul inoxidabil duplex este un amestec austenitic (50%) \u0219i ferit\u0103 (50%) din punct de vedere al microstructurii, structura special\u0103 \u00eei aduce o performan\u021b\u0103 mai bun\u0103 de rezisten\u021b\u0103 \u0219i rezisten\u021b\u0103 la coroziune fa\u021b\u0103 de originea o\u021belului inoxidabil austenitic sau ferit\u0103.<\/span><\/p>\n

O\u021belul inoxidabil duplex are o mare familie de nume \u0219i coduri. \u00een gradul ASTM, variaz\u0103 de la A890\/A990\/A995 1A, 1B, 1C la 4A, 5A, 6A, 7A; \u00een numere UNS, se nume\u0219te S31803, S32750, S32760 etc; \u00een num\u0103rul ASTM, este A998 CD6MN, CD3MN, CE3MN etc; \u00een echivalent forjare, este A182-F51, F53, F55 etc; in nume comun, este duplex 2205, super duplex 2507 etc; iar \u00een codurile de materiale europene, este DIN1.4462, 1.4410, 1.4501 etc;<\/span><\/p>\n

Care sunt beneficiile aduse de o\u021belul duplex?<\/strong>
\nRezisten\u021b\u0103 la coroziune similar\u0103 cu SS316
\nRezistenta la tractiune si la curgere mai mare
\nDuctilitate \u0219i duritate bun\u0103
\nRezisten\u021b\u0103 bun\u0103 la coroziune la cracare (SSC)<\/span><\/p>\n

\u00cen ce aplica\u021bii folose\u0219te o\u021belul duplex?<\/strong>
\nPetrochimice
\nInstala\u021bii de desalinizare
\nPrelucrare chimic\u0103 \u0219i transport
\nIndustrii de manipulare a clorurilor
\nTije de supap\u0103<\/span><\/p>\n

Note echivalente:<\/span><\/p>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n
GRAD ASTM<\/th>\nA990-1A<\/th>\nA990\/A995-1B<\/th>\nA990-1C<\/th>\nA990\/A995-2A<\/th>\nA990\/A995-3A<\/th>\nA990\/A995-4A<\/th>\nA990\/A995-5A<\/th>\nA990\/A995-6A<\/th>\nA990\/A995-7A<\/th>\n<\/th>\n<\/tr>\n
Tip<\/th>\n25Cr5NiMoCu<\/td>\n25Cr5Ni2Mo3Cu<\/td>\n25Cr6NiMoCuN<\/td>\n24Cr10Ni4MoV<\/td>\n25Cr5NiMoV<\/td>\n22Cr5Ni3MoN<\/td>\n25Cr7Ni4MoN<\/td>\n25Cr7Ni3.5MoWCb<\/td>\n27Cr7Ni-Mo-WN<\/td>\n25Cr7Ni3.5MoWCb<\/td>\n<\/tr>\n
UNS nr.<\/th>\nJ93370<\/td>\nJ93372<\/td>\nJ93373<\/td>\nJ93345<\/td>\nJ93371<\/td>\nS31803\/S32205<\/td>\nS32750<\/td>\nS32760<\/td>\n<\/td>\nS31254<\/td>\n<\/tr>\n
ASTM nr.<\/th>\nA995-CD4MCuN<\/td>\nA995 CD4MCu<\/td>\nA351-CD3MCuN*<\/strong><\/td>\nA351-CE8MN\/ CD3MCuN<\/td>\nA351-CD6MN<\/td>\nA995 CD3MN<\/td>\nA351-CE3MN<\/td>\nA995 CD3MWCuN<\/td>\nA351-CD3MWN<\/td>\nA351-CK3MCuN<\/td>\n<\/tr>\n
Echiv.<\/th>\nA182-F50*<\/strong><\/td>\n<\/td>\nF61*<\/strong><\/td>\n<\/td>\n<\/td>\nA182-F51<\/td>\nA182-F53<\/td>\nA182-F55<\/td>\n(Zero 100TM<\/sup>)<\/td>\nA182-F44<\/td>\n<\/tr>\n
Denumirea comun\u0103<\/th>\nDuplex<\/td>\nDuplex<\/td>\nDuplex<\/td>\nDuplex<\/td>\nDuplex<\/td>\nDuplex 2205<\/td>\nSuper Duplex 32750<\/td>\nSuper Duplex<\/td>\nSuper Austenitic\/Duplex<\/td>\nSuper Duplex<\/td>\n<\/tr>\n
european (DIN)<\/th>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n1.4462<\/td>\n1.4410<\/td>\n1.4501<\/td>\nUNS J93379<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Aplicatii:<\/strong><\/p>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n
SPECIFICA\u021aII DE FORJARE<\/th>\nDENUMIREA COMUN\u0102<\/th>\nASTM CAST<\/th>\nSPECIFICA\u021aII BAR FORJAT<\/th>\nRECOMAND\u0102RI DE SERVICII (1)<\/th>\n<\/tr>\n
ASTM A182 F44<\/td>\n20% Chrome; 18% Nichel; 6% Mo; 0,25% C Super o\u021bel inoxidabil<\/td>\nASTM A351 grad CK3MCuN (A995-1B) super austenitic<\/td>\nASTM A479 S31254<\/td>\n(2.54 SMO) Acid acetic, antibiotice \u0219i medicamente, compu\u0219i de albire, acid formic, fructe \u0219i sucuri, aer cald, ap\u0103 fierbinte, hidrocarburi, acid clorhidric, lichide \u0219i acizi organici, acid azotic, s\u0103ruri organice, acid oxalic, acid fosforic, mare ap\u0103, canalizare, bisulfit de sodiu, abur, acid sulfamic, acid sulfuric 10%.<\/td>\n<\/tr>\n
ASTM A182 F50<\/td>\n25.5% Chrome; 5,5% Nichel; 2% Mo; 0,040% C Super o\u021bel inoxidabil<\/td>\nASTM A351 grad CD4MCu (A995-1A)<\/td>\nASTM A479 S32550<\/td>\nSaramur\u0103 concentrat\u0103, acizi gra\u0219i, ap\u0103 potabil\u0103, ap\u0103 de pulp\u0103, lichioruri de pulp\u0103 la 220 \u00b0F (104 \u00b0C), ap\u0103 de mare, abur, acid sulfuric (15-30% la 140-160 \u00b0F (60-71 \u00b0C), acid sulfuric (35-40% @ 185 \u00b0F) 85\u00baC), plus 5% organice).<\/td>\n<\/tr>\n
<\/td>\n24% Chrome; 9,5% Nichel; 4% Mo; 0.080% C O\u021bel inoxidabil duplex<\/td>\nASTM A351 grad CE8MN (A995-2A)<\/td>\n<\/td>\nSaramur\u0103 concentrat\u0103, acizi gra\u0219i, ap\u0103 potabil\u0103, ap\u0103 de pulp\u0103, lichioruri de pulp\u0103 la 220 \u00b0F (104 \u00b0C), ap\u0103 de mare, abur, acid sulfuric (15-30% la 140-160 \u00b0F (60-71 \u00b0C), acid sulfuric (35-40% @ 185 \u00b0F) 85\u00baC), plus 5% organice).<\/td>\n<\/tr>\n
ASTM A182 F51<\/td>\n22% Chrome; 5% Nichel; 3% Mo; N; 0.030% C O\u021bel inoxidabil duplex<\/td>\nASTM A351 grad CD3MN (A995-4A)<\/td>\nASTM A479 S31803**<\/td>\nSaramur\u0103 concentrat\u0103, acizi gra\u0219i, ap\u0103 potabil\u0103, ap\u0103 de pulp\u0103, lichioruri de pulp\u0103 la 220 \u00b0F (104 \u00b0C), ap\u0103 de mare, abur, acid sulfuric (15-30% la 140-160 \u00b0F (60-71 \u00b0C), acid sulfuric (35-40% @ 185 \u00b0F) 85\u00baC), plus 5% organice).<\/td>\n<\/tr>\n
ASTM A182 F53<\/td>\n25% Chrome; 7% Nichel; 4,51 TP3T Mo; N; 0,030% C Duplex O\u021bel inoxidabil grad 5A<\/td>\nASTM A995 grad CE3MN (A995-5A)<\/td>\n<\/td>\nSaramur\u0103 concentrat\u0103, acizi gra\u0219i, ap\u0103 potabil\u0103, ap\u0103 de pulp\u0103, lichioruri de pulp\u0103 la 220 \u00b0F (104 \u00b0C), ap\u0103 de mare, abur, acid sulfuric (15-30% la 140-160 \u00b0F (60-71 \u00b0C), acid sulfuric (35-40% @ 185 \u00b0F) 85\u00baC), plus 5%organics). Util acolo unde este necesar num\u0103rul de rezisten\u021b\u0103 la pitting (PREN).<\/td>\n<\/tr>\n
ASTM A182 F55<\/td>\n25% Chrome; 7,5% Nichel; 3,5% Mo; N; 0.030%} C Duplex O\u021bel inoxidabil grad 6A<\/td>\nASTM A995 CD3MWCuN (A995-6A)<\/td>\n<\/td>\nSaramur\u0103 concentrat\u0103, acizi gra\u0219i, ap\u0103 potabil\u0103, ap\u0103 de pulp\u0103, lichioruri de pulp\u0103 la 220 \u00b0F (104 \u00b0C), ap\u0103 de mare, abur, acid sulfuric (15-30% la 140-160 \u00b0F (60-71 \u00b0C), acid sulfuric (35-40% @ 185 \u00b0F) 85\u00baC), plus substan\u021be organice 5%). Util acolo unde este necesar num\u0103rul de rezisten\u021b\u0103 la pitting (PREN).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Compozi\u021bia chimic\u0103 a materialului:<\/strong><\/p>\n

 <\/p>\n\n\n\n\n\n\n
UNS S31803\/A182 F51\/1.4462<\/th>\n<\/tr>\n
C<\/td>\nCr<\/td>\nMn<\/td>\nlu<\/td>\nN<\/td>\nNi<\/td>\nP<\/td>\nS<\/td>\nSi<\/td>\n<\/tr>\n
0.030<\/td>\n21.0-<\/td>\n2.00<\/td>\n2.50-<\/td>\n0.08-<\/td>\n4.50-<\/td>\n0.030<\/td>\n0.020<\/td>\n1.00<\/td>\n<\/tr>\n
max<\/td>\n23.0<\/td>\nmax<\/td>\n3.50<\/td>\n0.20<\/td>\n6.50<\/td>\nmax<\/td>\nmax<\/td>\nmax<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

 <\/p>\n\n\n\n\n\n\n
UNS S32205<\/th>\n<\/tr>\n
C<\/td>\nCr<\/td>\nMn<\/td>\nlu<\/td>\nN<\/td>\nNi<\/td>\nP<\/td>\nS<\/td>\nSi<\/td>\n<\/tr>\n
0.030<\/td>\n22.0-<\/td>\n2.00<\/td>\n3.00-<\/td>\n0.14-<\/td>\n4.50-<\/td>\n0.030<\/td>\n0.020<\/td>\n1.00<\/td>\n<\/tr>\n
max<\/td>\n23.0<\/td>\nmax<\/td>\n3.50<\/td>\n0.20<\/td>\n6.50<\/td>\nmax<\/td>\nmax<\/td>\nmax<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Noi producem robinete cu bil\u0103 duplex din o\u021bel inoxidabil<\/a>,2205 Supap\u0103 de re\u021binere cu dou\u0103 pl\u0103ci,<\/a>Supap\u0103 de re\u021binere pivotant\u0103 CD3MN,<\/a>ASTM B367 GR.C2 supap\u0103 de re\u021binere oscilant\u0103 din titan,<\/a>Supap\u0103 cu glob CN7M de 150LB,<\/a>Supap\u0103 CN7M de 150LB.<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

duplex stainless steel Ball Valve is a kind of valve that can be opened and closed by rotating the ball around the center line of the valve body. The sealing element is embedded in the valve seat. A spring is set at the end of the metal valve seat. When the sealing surface is worn […]<\/p>\n","protected":false},"author":290641,"featured_media":6638,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[1756,1752,1753,1750,1755,1754,1749,1751],"class_list":["post-6310","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","tag-150lb-cn7m-gate-valve","tag-2205-ball-valve","tag-2205-dual-plate-check-valve","tag-4a-ball-valve","tag-astm-b367-gr-c2-titanium-swing-check-valve","tag-cd3mn-swing-check-valve","tag-duplex-stainless-steel-ball-valve","tag-f51-ball-valve"],"_links":{"self":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/6310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/users\/290641"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/comments?post=6310"}],"version-history":[{"count":2,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/6310\/revisions"}],"predecessor-version":[{"id":6639,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/posts\/6310\/revisions\/6639"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media\/6638"}],"wp:attachment":[{"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/media?parent=6310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/categories?post=6310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stvvalves.com\/ro\/wp-json\/wp\/v2\/tags?post=6310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}