Nnianimu
Wɔ wiase a nsu tumi wom mu no, mfiri a emu yɛ duru taa twetwe adwene nyinaa. Nsu a wɔde yɛ nsukorade akɛse, pɔmpɛ a ɛrebobom, ne afiri akɛse a wɔde hwɛ kwan so na ɛhyɛ adansi mmeae, adwumayɛbea ahorow a wɔyɛ nneɛma, ne kuayɛ mfuw mu. Nanso, nokware abran a wɔanto dwom a wɔwɔ saa nhyɛso a ɛkorɔn-nhyɛso nhyehyɛe ahorow yi mu no ne nneɛma nketenkete a ɛma wɔkɔ so bom. Sɛ wɔannya nkitahodi a ɛfata a, ahoɔden kɛse a nsu pɔmpɛ de ba no bɛyɛ nea mfaso nni so, anaasɛ nea enye koraa no, asiane a ɛyɛ nwonwa.
Nsu a wɔde hyɛ mu a ɛfata a wɔbɛpaw no yɛ gyinaesi ahorow a ɛho hia sen biara a mfiridwumayɛfo, mfiridwumayɛfo, anaa nnwinnade wura betumi asi no mu biako. Asaawa biako a ɛnhyia anaa ade bi a wɔmfa nyɛ hwee betumi ama adi huammɔ kɛse, na ɛde nsu a ne bo yɛ den a ɛyera, nneɛma a atwa yɛn ho ahyia asɛe, nnwinnade a ɛsɛe kɛse, na asiane kɛse a ɛwɔ hɔ sɛ nea ɔde di dwuma no bepira aba. Esiane sɛ asaawa gyinapɛn ahorow, ne kɛse, ne akwan horow a wɔfa so siesie nneɛma ahorow du du pii ahyɛ gua no so ma nti, sɛ wobenya nea ɛne no hyia pɛpɛɛpɛ a, ebetumi ate nka sɛ ɛyɛ den ama wɔn a wɔrefi ase no.
Wɔayɛ akwankyerɛ a ɛkɔ akyiri yi sɛnea ɛbɛyɛ a ɛbɛma ahintasɛm afi ɔkwan a wɔfa so paw nneɛma no mu. Ɛdenam nnyinasosɛm atitiriw a ɛfa nsu mfiridwuma, asaawa a wɔde hu, ne nneɛma ho nyansahu a wobɛbubu so no, asɛm yi bɛma woanya nimdeɛ a ɛho hia a wode bɛpaw nneɛma a ɛfata ama wo nhyehyɛe no wɔ ahotoso ne ahobammɔ mu.
Mfitiaseɛ Nteaseɛ: Dɛn ne Hydraulic Fittings ne Dɛn Nti na Ɛho Hia?
Sɛnea ɛyɛ mmerɛw sen biara no, nsu a wɔde hyɛ mu yɛ ade a wɔde fa nsu hose, paipu, anaa tube bata pɔmpɛ, valve, cylinder, anaa nsu ahoɔden fã foforo ho. Botaeɛ titire a ɛwɔ fitting biara mu no yɛ mmienu: ɛsɛ sɛ ɛkura nsuo a ɛwɔ nhyɛsoɔ kɛseɛ-mu wɔ nhyehyɛeɛ no mu a ɛntu, na ɛsɛ sɛ ɛma structure connection a ahobanbɔ a ɛko tia mfiridwuma ahoɔden a ɛba berɛ a ɛreyɛ adwuma no.
Sɛ fitting bi ntumi nyɛ saa nnwuma yi a, nea efi mu ba no ntaa nyɛ nketenkete. Nsu a wɔde yɛ adwuma no taa yɛ adwuma wɔ nhyɛso a efi nkaribo 1,000 kosi bɛboro 10,000 wɔ nsateakwaa ahinanan biara mu (psi). Wɔ saa nhyɛso ahorow yi mu no, pinhole mu nsu a ɛtwetwe no betumi ama nsu a ɛyɛ atom kɛse a ɛyɛ nsu a ɛyɛ hyew a ɛyɛ hyew, na ɛde ogya ho asiane kɛse aba. Bio nso, ade a wɔde hyɛ mu a ɛnyɛ den betumi abɔ koraa, na ama hose ahorow abɔ denneennen na mfiri ahorow atow nnesoa a wɔmmɔ kɔkɔ.
Nea ɛbɛyɛ na yɛakwati saa tebea horow yi no, ɛboa ma yɛte ase sɛ fitting ntaa nyɛ dade biako pɛ. Mpɛn pii no, nhyiam a wɔahyɛ da ayɛ no fa nipadua a ɛfata ho, a ɛwɔ nhama titiriw ne nneɛma a wɔde kata so; nut, a ɛma mfiri tumi a ehia na wɔde amia nsɔano no; na ɛtɔ mmere bi a, nsateaa anaa ferrule, a ɛka tubing no mu anaasɛ ɛkyere mu na ama wɔatumi akura mu daa. Sɛnea saa afã horow yi di nkitaho a wubehu no ne anammɔn a edi kan a wobɛtu a ɛbɛma woatumi ayɛ nsu nhyehyɛe ho nhyehyɛe yiye.
Anamɔn 1: Nhwehwɛmu Titiriw Anan a Wɔde Paw Nneɛma (STAMP Ɔkwan no) .
Sɛ adwumayɛfoɔ kɔ nsuo nhyehyɛeɛ bi nkyɛn kɔpaw anaa wɔsesa nneɛma a wɔde yɛ adwuma a, wɔde wɔn ho to asɛmfua tiawa bi a wɔasɔ ahwɛ bere-a wɔfrɛ no STAMP kwan so. Bere a STAMP gyina hɔ ma kɛse, Ɔhyew, Dwumadi, Nneɛma, ne Nhyɛso no, yɛbɛhwɛ akuw anan a edi kan wɔ ha de asi yɛn fapem mfitiasede no asi hɔ.
Kɛseɛ
Size ne anohyeto ankasa a wubehyia. Fitting a ɛyɛ ketewaa dodo bɛma nsu no akɔ soro, na ɛbɛma nsu no ahoɔhare, friction, ne ɔhyew a ɛba no akɔ soro kɛse. Saa ɔhyew a ɛboaboa ano yi sɛe hydraulic oil no na ɛsɛe emu nsɔano. Nea ɛne eyi bɔ abira no, fitting a ɛsõ dodo ma nhyɛso no kɔ fam mpofirim na ebia ɛrenhyɛ honam fam anohyeto ahorow a ɛwɔ mfiri no nhyehyɛe mu no mu. Ɛsɛ sɛ wosusu hose anaa tube no Inner Diameter (ID) nyinaa na ama woahwɛ sɛ nsuo a ɛsen no yie, ne Outer Diameter (OD) a ɛwɔ nhama no mu na ama woahwɛ sɛ honam fam nkitahodiɛ a ɛfata.
Ahoɔhyeɛ
Nsu a wɔde yɛ adwuma no ma ɔhyew kɛse ba emu, nanso wɔde nneɛma a atwa yɛn ho ahyia a ɛwɔ akyi nso hyɛ mu. Ɛsɛ sɛ wususuw ɔhyew ho nsɛm abien a ɛsono emu biara ho bere a worepaw nsu a wɔde hyɛ mu no: media ɔhyew (nsu a ɛkɔ mu) ne ɔhyew a atwa yɛn ho ahyia (mframa a ɛwɔ abɔnten). Awɔw a ano yɛ den betumi ama dade a wɔde hyɛ mu no ayɛ mmerɛw na ama elastomeric O-rings mu apaapae. Ɔhyew a ano yɛ den betumi ama dade atrɛw, atew torque a etu mpɔn a ɛwɔ nkwaa no mu no so na ama O-rings no ayɛ mmerɛw anaasɛ ayɛ den.
Abisadeɛ
Ɛhe na saa fitting yi bedi ne dwumadi nkwa nna? Nsuo nhyehyɛeɛ a wɔde ahyɛ po so ngo rig so hyia nkyene a wɔde petepete ne nsuo a ɛyɛ nwini a ɛbɛtumi asɛe no bere nyinaa, na ɛhwehwɛ dadeɛ a ɛnyɛ den a ɛkorɔn-grade. Nhyehyɛe bi a wɔasi wɔ adwumayɛbea fam plastic injection molding afiri mu no betumi anya nhyɛso a ɛnyɛ den pii nanso ehyia ɔpepem pii a ɛwosow mpɛn pii dapɛn biara. Wosow betumi ama nhama a wɔde nhama ayɛ no asan akɔ akyi nkakrankakra bere a bere kɔ so no, na ama ayɛ nea wɔpɛ sɛ wɔde tow anaa mfiri a wɔde siesie nneɛma pɔtee bi.
Atadeɛ
Ɛsɛ sɛ nneɛma a wɔde yɛ fitting no yɛ nea nnuru ne hydraulic nsu a wɔde di dwuma ne abɔnten so nneɛma a atwa yɛn ho ahyia no nyinaa hyia. Nneɛma abiɛsa a wɔtaa de di dwuma ne:
Carbon Steel: Ɛyɛ den yiye na ɛyɛ den, na ɛma ɛyɛ nnwuma gyinapɛn ma mfiridwuma ne telefon so dwumadi dodow no ara a nsɛe a ɛboro so nyɛ asɛm.
Stainless Steel: Ɛyɛ soronko a ɛko tia nkannare ne nnuru ntua, eye ma po so, nnuru a wɔde yɛ adwuma, ne aduan a wɔyɛ.
Kɔbere: Wɔtaa de sie ma nhyɛsoɔ a ɛba fam-nhyɛsoɔ nhyehyɛeɛ anaa dwumadie titire a ɛhia sɛ wɔde spark resistance anaa metallurgical su pɔtee bi di dwuma.
Anamɔn 2: Deciphering Thread Types ne Nsɔano Akwan
Sɛ wuhu wo nhyehyɛe titiriw ahwehwɛde wie a, mfiridwuma anammɔn a ɛyɛ den sen biara no fi ase: kyerɛ asaawa pɔtee no ne sɛnea ɛma nsu-nsɔano a ɛyɛ den. Mpɛn pii no, nhama no gu akuw abien a ɛtrɛw mu: nhama a ɛyɛ teateaa ne nhama a ɛne ne ho di nsɛ (ɛyɛ tẽẽ).
Nhama a Wɔayɛ no Tapered
Wɔayɛ nhama a ɛyɛ teateaa no sɛnea ɛbɛyɛ a ɛbɛsɔ ano denam nhama a ɛyɛ ɔbarima ne ɔbea no a wɔde bɛka abom bere a wɔrekyekyere no denneennen no so. Nsakrae a ɛtaa ba wɔ Amerika Atifi fam ne National Pipe Tapered (NPT anaa NPTF) gyinapɛn. Bere a wodan NPT fitting kɔ hyɛn gyinabea mu no, asaawa no ntwemu kɔ soro, na ɛma dade-kɔ-dade a wɔayam no nsɔano.
Bere a NPT fittings bo nyɛ den na ɛwɔ baabiara no, ɛwɔ sintɔ kɛse ma high-pressure hydraulics. Esiane sɛ wɔde wɔn ho to asaawa a ɛsakra so na ama wɔasɔw ano nti, wɔtaa su kɛse bere a bere kɔ so no, na wontumi nsakra wɔn kwan mma wɔn kwan so bere a wɔakyekyere wɔn denneennen akyi a wɔremma nsɔano no nsɛe. Wɔtaa hia nso sɛ wɔde asaawa a wɔde siw ano, te sɛ Teflon teyp anaa nsu paipu dope, a ebetumi abubu na ɛde efĩ agu nsu nhyehyɛe no mu.
Nhama a ɛne ne ho di nsɛ ne 37-Degree Flare
Nhama a ɛne ne ho di nsɛ no nsɔ nhama no ankasa ano. Mmom no, nhama a ɛteɛ no yɛ adwuma sɛ mfiri a wɔde kyekyere nneɛma a ɛtwetwe nneɛma abien a ɛsono emu biara a wɔde kyekyere nneɛma bom.
Eyi ho nhwɛso titiriw ne Joint Industry Council (JIC) 37-degree flare fitting. Ɔbarima JIC fitting no wɔ 37-degree cone, bere a ɔbea fitting no wɔ 37-degree nkongua a ɛne no hyia. Sɛ wɔkyekyere nut no mu den a, wɔde ahoɔden kɛse mia cone ne nkongua no bom, na ɛma wonya dade-dade nsɔano a wotumi de ho to so kɛse. JIC fittings yɛ papa ma high-pressure systems, wobetumi atwa mu na wɔasan abɔ mu mpɛn pii a ɛrensɛe, na enhia thread sealant biara.
O-Ring Anim Nsɔano (ORFS) .
Bere a hydraulic system nhyɛso akɔ soro nkakrankakra wɔ mfe du du no mu no, nnwuma no adan kɛse akɔ O-Ring Face Seal (ORFS) mfiridwuma so. ORFS ɔbarima fitting bi wɔ asaawa a ɛyɛ tẽẽ a elastomeric O-ring a wɔde ahyɛ afiri a wɔde ayɛ afiri mu wɔ nkitahodi no anim a ɛyɛ tratraa no so. Ɔbea a wɔde hyɛ mu no wɔ baabi a ɛyɛ tratraa a ɛware.
Sɛ wɔkyekyere nhyiam no mu den a, wɔde O-ring no mia petee wɔ ɔbea no anim. Saa nhyehyɛe yi de ahobammɔ a eye sen biara koraa a ɛwɔ nsu a ɛtwetwe mu a ɛwɔ nnɛyi nsu ahoɔden mu ma. Ɛgye nhyehyɛe no wosow a ɛkorɔn, ɛko tia nhyɛso a ɛkɔ soro yiye ma ɛyɛ nwonwa, na eyi asiane a ɛwɔ hɔ sɛ ɛbɛkyekyere ade a ɛyɛ den dodo sɛ ɛbɛpaapae ade bi mu no fi hɔ.
Amanaman Ntam Gyinapɛn: BSP ne Metric
Sɛ woreyɛ adwuma wɔ nnwinnade a wɔayɛ wɔ Europa anaa Asia a, wubehyia British Standard Pipe (BSP) anaa Metric DIN gyinapɛn ahorow. BSP wɔ akwan abien so: BSPT (tapered) ne BSPP (parallel). Mpɛn pii no, metric fittings no te sɛ Amerika JIC anaa ORFS fittings wɔ aniwa a ɛda hɔ, nanso wɔde metric thread pitch (a wɔsusuw no milimita wɔ asaawa biara mu) di dwuma sen sɛ wɔde nhama bedi dwuma wɔ inch biara mu. Thread gauge ne caliper a wode bedi dwuma no nkutoo ne ɔkwan a wotumi de ho to so a wobɛfa so ahu nsonsonoe. Mmɔ mmɔden da sɛ wobɛhyɛ Amerikafo asaawa bi akɔ metric hyɛn gyinabea bi; ɛbɛsɛe nneɛma abien no nyinaa nhama no ntɛm ara.
Anamɔn 3: Nhyɛso Nhwehwɛmu ne Ahobammɔ Nkyɛmu a Wɔbɛhwehwɛ
Bere a woahu wo nsusuwii ne nhama ahorow no, ɛsɛ sɛ wohwɛ sɛ nsu a woapaw no betumi adi wo nhyehyɛe no dwumadi mu nhyɛso a emu yɛ den no ho dwuma. Obiara a ɔyɛ adwuma a ɔwɔ din pa de Maximum Working Pressure pɔtee bi to wɔn fittings no so.
Ɛho hia sɛ obi a ɔrefi ase no te nsonsonoe a ɛda adwumayɛ mu nhyɛso ne mpaapaemu nhyɛso ntam ase. Nhyɛso a wɔde yɛ adwuma no ne tumi a ɛsen biara a fitting no betumi agyina ano dwoodwoo bere a ɛyɛ adwuma da biara da, bere a ɛkɔ so yɛ adwuma no. Nhyɛso a ɛpae no ne beae a fitting no mu paapae honam fam wɔ aduruyɛdan mu sɔhwɛ mu. Wɔ hydraulic adwumayɛ mu no, ahobammɔ a wɔahyɛ da ayɛ no yɛ 4:1 ratio. Wei kyerɛ sɛ fitting a wɔahyɛ sɛ ɛyɛ 3,000 psi adwumayɛ nhyɛsoɔ no, mpɛn pii no ɛrempae kɔsi sɛ ɛbɛduru 12,000 psi.
Nanso, ɛnsɛ sɛ woyɛ nhyehyɛe bi da sɛ ɛbɛkɔ akodu adwumayɛ nhyɛso dodow no ano pɛɛ sɛ wo application no yɛ nnam a. Wɔ wiase adwumayɛ ankasa mu no, sɛ control valve bi to mu mpofirim a, shockwave bi fa nsuo a ɛwɔ nsuo mu no mu. Ɛnyɛ den sɛ nhyɛso a ɛkɔ soro yi betumi abu nhyehyɛe no nhyɛso a wɔfrɛ no no mmɔho abien anaa abiɛsa wɔ sekan fã ketewaa bi mu. Sɛ wo fittings no nnyɛ underrated a, saa micro-spikes a ɛkɔ so daa yi bɛma ɔbrɛ adi nkogu bere a bere kɔ so no.
Bio nso, kae mmara a ɛfa nkitahodi a ɛyɛ mmerɛw sen biara ho bere nyinaa: nsuo nhyiamu yɛ den te sɛ ne fã a ɛba fam-rated no nko ara. Sɛ wode hose a wɔahyɛ sɛ ɛyɛ 5,000 psi bata fitting a wɔahyɛ sɛ ɛyɛ 2,500 psi ho a, wɔabara wo nhyehyɛe no tumi nyinaa sɛ 2,500 psi.
Awiei koraa no, bɔ mmɔden sɛ wobɛkwati sɛ wobɛfrafra nneɛma a wɔde di dwuma wɔ nkitahodi nhyiam biako mu bere biara a ɛbɛyɛ yiye. Bere a ɛsɛ sɛ ɔbarima JIC fitting a efi brand biako mu wɔ nsusuwii mu ne ɔbea JIC fitting a efi foforo mu no bɔ pɛpɛɛpɛ no, nsakrae nketenkete wɔ manufacturing tolerances mu betumi ama micro-gaps aba. Sɛ wobata nea ɔyɛ adwuma biako a ɔwɔ din pa ho ma wo hoses, fittings, ne adapters a, ɛma wohwɛ hu sɛ nneɛma a ɛwom no hyia na nhyehyɛe no mudi mu kura.
Nneyɛe Pa a Wɔde Sisi Nsiesiei ne Nsiesiei Ho
Hydraulic fitting a ne bo yɛ den sen biara a ɛne no hyia pɛpɛɛpɛ mpo bedi nkogu sɛ wɔamfa anhyɛ mu wɔ ɔkwan a ɛnteɛ so a. Mfomsoɔ a wɔtaa di a wɔn a wɔrefi aseɛ di ne over-torquing. Atetesɛm bi a ɛkɔ so daa wɔ mfiridwuma mu sɛ "tighter ye bere nyinaa." Wɔ hydraulics mu no, ɛnyɛ den sɛ wobɛkyekyere no boro so -atumi apaapae flare seat mu, ayi nhama, anaasɛ akyinkyim O-ring groove bi, na ama kwan a ɛda hɔ daa aba.
Sɛnea ɛbɛyɛ na woasiw eyi ano no, fa Flats From Finger Tight (FFFT) kwan no di dwuma bere a torque wrench nni hɔ no. Wɔ saa kwan yi so no, wode nsa kyekye nut no mu den kosi sɛ ɛne nea wɔde nsɔano no bɛbɔ denneennen, de agyiraehyɛde ahyɛ nhama bi agyirae wɔ nut no ne nipadua a wɔde hyɛ mu no so, na afei wode safe dannan nut no hex flat dodow pɔtee bi a egyina nea ɔyɛe no nyansahyɛ ahorow so.
Nsiesiei mu nhwehwɛmu a wɔyɛ daa nso ho hia na ama nsu a wɔde yɛ adwuma no akɔ so ayɛ adwuma yiye. Hwehwɛ su ho sɛnkyerɛnne ahorow, a ɛyɛ ngo a ɛboaboa ano brɛoo na ɛyɛ nwini wɔ nkwaa a ɛfata a ennya mfii ase ntɔɔ denneennen ho. Osu yɛ kɔkɔbɔ sɛnkyerɛnne a ɛkyerɛ sɛ nsɔano afi ase redi huammɔ.
Sɛ ɛsɛ sɛ wosesa fitting bi a, di ahobammɔ ho nhyehyɛe a emu yɛ den akyi bere nyinaa. Dum prime mover (anyinam ahoɔden mfiri anaa engine), ma control valves no yɛ adwuma kɔ anim ne akyi na ama nhyɛso biara a akyea wɔ nhama no mu no afi hɔ, na hwɛ sɛ mfiri mu adesoa a ɛkɔ soro nyinaa de mfiri asiw ano anaasɛ wɔde asi fam. Sɛ́ wobɛbɔ mmɔden sɛ wobɛsansan nsu a wɔde hyɛ mu bere a nhyehyɛe no wɔ nhyɛso ase no yɛ asiane a ɛyɛ nwonwa na ebetumi ama woapirapira ntɛm ara wɔ nsu a wɔde twitwiw mu, na ɛho hia sɛ wokɔ ayaresabea ntɛm ara.
Awie
Sɛ wofa abɔde a nkwa wom kɛse a ɛwɔ nsu mu tumi afã horow no mu a, mfiase no ebetumi ayɛ te sɛ nea woresua ɔman foforo so kasa. Nanso, ɛdenam nhyehyɛe a wɔahyehyɛ te sɛ STAMP kwan no a ɔde ne ho bɛto so na ogye bere de susuw nsusuwii ahorow pɛpɛɛpɛ, hu asaawa geometries, na obu nhyɛso dodow so no, obiara betumi ayɛ hydraulic fittings a wɔpaw no yiye.
Sɛ́ wobɛpaw afiri a ɛfata a wobɛpaw no nyɛ asɛm a ɛne sɛ wobɛsan de afiri bi ayɛ adwuma na ayɛ adwuma kɛkɛ; ɛyɛ sika a wode bɛto wo nnwinnade a ɛyɛ adwuma yiye, nneɛma a atwa wo ho ahyia no ho banbɔ, ne obiara a ɔyɛ adwuma a ɛbɛn hɔ no ahobammɔ mu tẽẽ. Fa nkitahodi biara di dwuma pɛpɛɛpɛ sɛnea ɛfata, fa sika hyɛ nnwinnade a ɛyɛ papa te sɛ calipers ne thread pitch gauges mu, na bere nyinaa hwɛ nea ɔyɛe no nkyerɛkyerɛmu nkrataa bere a w’adwene mu yɛ wo naa no. Sɛ saa nneyɛe yi wɔ hɔ a, wo hydraulic systems no bɛkɔ so ayɛ leak-free, ahoɔden, na wotumi de ho to so mfeɛ a ɛreba no.
