I. Dwumadi titiriw a ɛwɔ .Solenoid valve ahorow .
Solenoid valve no, sɛ ade titiriw a ɛma electro-pneumatic conversion no, yɛ asɛyɛde a ɛne sɛ wɔbɛdan anyinam ahoɔden nsɛnkyerɛnne no yiye ma ayɛ mframa nsɛnkyerɛnne. Sɛ wonya control instruction no wie a, solenoid valve no betumi agyae, agyae anaa asesa flow direction a ɛwɔ compressed air no mu, na ɛnam so anya functions pii, a nea ɛka ho ne control of action direction of the pneumatic actuator component, on/off switch quantity control, ne or/not/and logic control. Wɔ solenoid valve ahorow ahorow no mu no, electromagnetic control directional control valve no kura gyinabea titiriw bi na edi dwuma titiriw.
ii. Adwumayɛ nnyinasosɛm a ɛfa electromagnetic control akwankyerɛ control valve ho .
Wɔ mframa nhyehyɛe mu no, electromagnetic control directional control valve no di dwuma titiriw. Ɛyɛ n’asɛyɛde sɛ ɛhwɛ mframa a ɛsen no a ɛbue ne nea ɛto mu no so anaasɛ ɛsakra mframa a wɔahyɛ no den no kwan. Ne nnyinasosɛm titiriw a ɛyɛ adwuma no gyina electromagnetic tumi a electromagnetic coil no de ba no so. Saa tumi yi bɛma valve core no asesa, na ɛnam so ama atirimpɔw a ɛne sɛ wɔbɛdan mframa a ɛsen no akyi no aba. Sɛnea akwan horow a electromagnetic control part no pia directional control valve no kyerɛ no, wobetumi akyekyɛ electromagnetic control valve ahorow no mu abien: Direct-Acting and Pilot-ayɛ adwuma. Direct-Solenoid valves a ɛyɛ adwuma no de electromagnetic ahoɔden di dwuma tẽẽ de kanyan valve no mu ma ɛdan ɔkwan no, bere a pilot-akwankyerɛ a wɔde di dwuma no de ne ho to pilot mframa nhyɛso a electromagnetic pilot valve no de ba no so ma ɛma valve no mu yɛ den na ama wɔatumi asan akyi.
Mfonini 1 kyerɛ mmeamudua a ɛnyɛ den-sectional view a ɛfa 3/2 (abiɛsa-kwan abien-gyinabea) tẽẽ-a ɛyɛ solenoid valve (a mpɛn pii no ɛbue) ne ne nnyinasosɛm a ɛyɛ adwuma. Sɛ coil no nya ahoɔden a, static iron core no bɛma electromagnetic ahoɔden aba, na saa tumi yi bɛpia valve no mu ntini no akɔ soro. Bere a valve core no kɔ soro no, wɔma gasket no so, na ɛnam so ma ports 1 ne 2 no bom bere a ɛretwa ports 2 ne 3. Saa bere yi, valve no wɔ intake tebea mu na ebetumi ahwɛ cylinder no kankan so. Sɛ wɔtwa anyinam ahoɔden no wie a, valve no mu no de ne ho bɛto spring no ahoɔden a ɛresan aba no so ma asan akɔ ne mfitiaseɛ tebea no mu, kyerɛ sɛ, hyɛn gyinabea 1 ne 2 no atwa bere a port 2 ne 3 no abɔ mu. Saa kwan yi so no, valve no wɔ exhaust tebea no mu.
Mfonini 2 kyerɛ mmeamudua a ɛnyɛ den-sectional view of the 5/2 (anum-way two-gyinabea) Direct-Acting solenoid valve (a mpɛn pii no wobue) ne ne nnyinasosɛm a ɛyɛ adwuma. Wɔ tebea a edi kan no mu no, mframa a wɔfa no fa hyɛn gyinabea 1 ne 2 so, bere a wɔnam hyɛn gyinabea 4 ne 5 so na ɛyɛ mframa a wɔtwe fi mu no. Sɛ coil no nya ahoɔden a, dade a ɛwɔ hɔ a ɛnyɛ adwuma no ma anyinam ahoɔden tumi ba. Saa tumi yi bɛma pilot valve no ayɛ adwuma, na afei mframa a wɔahyɛ no den no bɛfa mframa kwan no so akɔ valve no piston no mu, na ama piston no afi ase. Wɔ piston no mfinimfini no, nsɔano kurukuruwa no bue kwan no. Saa bere yi, mframa fi hyɛn gyinabea 1 ne 4 mu, bere a mframa fi hyɛn gyinabea 2 ne 3. Sɛ wotwa anyinam ahoɔden no wie a, pilot valve no de ne ho bɛto tumi a ɛresan aba asubura no so de asan akɔ ne mfitiase tebea no mu.
Afei, momma yɛnka solenoid valve no dwumadi ho asɛm. Wɔde akontaahyɛde abien gyina hɔ ma anyinam ahoɔden valve dwumadi: M ne N, a wɔfrɛ no M{1}}kwan n-gyinabea a ɛwɔ anyinam ahoɔden mu. Wɔn mu no, "n gyinabea" gyina hɔ ma switching gyinabea a directional control valve no, kyerɛ sɛ, valve no tebea. Valve gyinabea dodow yɛ N. Sɛ nhwɛso no, abien-gyinabea valve no wɔ gyinabea ahorow abien, kyerɛ sɛ, ɛwɔ tebea abien. Mmiɛnsa-gyinabea valve no wɔ gyinabea ahorow abiɛsa, kyerɛ sɛ, tebea ahorow abiɛsa na ɛwɔ hɔ. "M kwan" no kyerɛ abɔnten ntam nkitahodi dodow a ɛwɔ valve no mu, a mframa a ɛkɔ mu, mframa a ɛkɔ mu ne mframa a ɛkɔ mu no ka ho. Akwan dodow no y m.
Fa valve a ɛwɔ Mfonini 1 mu no sɛ nhwɛso. Ɛyɛ 3/2 tẽẽ-Acting solenoid valve, kyerɛ sɛ, valve no wɔ gyinabea abien, a ɛne "on" ne "off" tebea horow. Bere koro no ara mu no, ɛwɔ wimhyɛn gyinabea abiɛsa: 1 ne mframa a ɛkɔ mu, 2 yɛ mframa a ɛkɔ mu, na 3 yɛ mframa a wɔde fi mu.
Nhwehwɛmu a wɔyɛe wɔ solenoid valve mframa kwan no ho .
Wɔ gas kwan mfonini no benkum so no, sɛnkyerɛnne a ɛwɔ benkum so pɛɛ no taa gyina hɔ ma nsu a ɛwɔ ase no. Mfinimfini fã no yɛ valve nipadua, a nsɛm titiriw a wɔde kyerɛ solenoid valve no su wom. Sɛ nhwɛso no, nnaka abien a ɛwɔ mfonini no mu no kyerɛ sɛ eyi yɛ abien-gyinabea solenoid valve, bere a A/B/R/P/s gyina hɔ ma tokuru gyinabea a ɛwɔ valve nipadua no mu, kyerɛ sɛ, anum-kwan valve no. Enti, saa solenoid valve yi yɛ abien-gyinabea anum-way solenoid valve. Saa ara nso na yebetumi ahu bit dodow ne solenoid valve no dodow a ɛtwam denam ntokuru dodow ne nnaka dodow so.
Bio nso, gas kwan mfonini no nso kyerɛ gas kwan no dwumadie akwan bere a anyinam ahoɔden no adum na ahoɔden no ayɛ adwuma. Sɛ wɔtwa tumi a, mframa kwan no fa tokuru P mu, yɛ adwuma wɔ actuator no so fa tokuru A mu, afei ɛfa tokuru B mu, na awiei koraa no, efi tokuru S mu, bere a tokuru R kɔ so to mu no. Sɛ wɔde ahoɔden ma a, mframa kwan no nso fi tokuru P mu hyɛn mu, nanso saa bere yi, mframa fi tokuru B mu, na ɛyɛ adwuma wɔ actuator no so na ɛfa tokuru A mu, na awiei koraa no wɔde fi tokuru R mu, bere a wɔato tokuru S mu no.
Mfonini 3 no fã a ɛfata no taa gyina hɔ ma coils anaasɛ pilot valve nketewa, a edi dwuma titiriw wɔ solenoid valve ahorow no dwumadi mu. Ɛdenam saa mframa kwan ho mfonini ahorow yi a yɛbɛkyerɛ ase so no, yebetumi anya ntease a emu dɔ wɔ adwumayɛ nnyinasosɛm a ɛwɔ solenoid valve no mu ne mframa kwan no dwumadi wɔ tebea horow mu.
Mfonini 4 kyerɛ anyinam ahoɔden nhyehyɛe mfonini a ɛkyerɛ mframa a ɛwɔ solenoid valve no mu. Electrical schematic diagram no ne ade titiriw a ɛbɛma yɛate nnyinasosɛm a ɛyɛ adwuma a ɛwɔ electromagnetic valve mu ase. Ɛkyerɛ coil, contacts, ne abusuabɔ a ɛda anyinam ahoɔden nneɛma afoforo ntam no pefee. Ɛdenam anyinam ahoɔden nhyehyɛe ho mfonini a yɛbɛhwɛ so no, yebetumi anya ntease a emu dɔ wɔ anyinam ahoɔden nsakrae a ɛba solenoid valve no mu bere a wɔde anyinam ahoɔden ayɛ no na adum no, na yɛnam saayɛ so ate ne dwumadi su ase yiye.
iv. Paw biako-Control solenoid valves ne abien-Control solenoid valves .
Solenoid valve biako a anyinam ahoɔden na ɛhwɛ so no, sɛnea ne din kyerɛ no, wɔ coil biako pɛ. Sɛ powered on a, ɛbɛsesa na akɔ tebea foforo mu. Sɛ wotwa anyinam ahoɔden no mu a, ɛbɛsan aba mfitiase tebea no mu ara kwa. Saa nnyinasosɛm a ɛyɛ adwuma yi yɛ nea wɔakyerɛ wɔ Mfonini 5. Nea ɛne eyi bɔ abira no, wɔde coil abien ahyɛ solenoid valve a wɔde di dwuma no mu abien. Ɛdenam coils ahorow a ɛwɔ ahoɔden tebea horow a ɛhwɛ so no so no, ebetumi anya nsakrae ahorow pii na ɛda so ara kura ne tebea a atwam no mu wɔ tumi akyi-a ɛnyɛ adwuma, sɛnea wɔada no adi wɔ Mfonini 6. Saa dwumadi mu nsonsonoe yi kyerɛ wɔn paw ahorow tẽẽ wɔ dwumadie a wɔde di dwuma mu.
Mfonini 5 ne 6 kyerɛ adwumayɛ nnyinasosɛm ahorow a ɛwɔ biako-Control solenoid valves ne abien-control solenoid valves. Sɛ worepaw bi a, sɛ bere a valve no dannan no yɛ tiawa a, biako-Control solenoid valve no dɔɔso sɛ ebetumi adi ho dwuma. Nanso, sɛ commutation bere no yɛ tenten a, ɛsɛ sɛ coil no kɔ so yɛ adwuma, a ebetumi ama coil no ayɛ hyew esiane tumi a ɛkyɛ-wɔ so na mpo ɛhyew nti. Sɛnea ɛbɛyɛ a wobɛkwati saa tebea yi no, wobetumi apaw abien-control valve. Bio nso, sɛ ɛho hia sɛ wonya reset dwumadie no wɔ tumi a ɛdi huammɔ akyi a, solenoid valve baako a anyinam ahoɔden na ɛhwɛ so no fata kɛseɛ. Sɛ ɛho hia sɛ wokura mprempren tebea no mu wɔ tumi a ɛdi huammɔ akyi a, ɛboro soɔ-ahyɛnsodeɛ solenoid valve no fata kɛseɛ.
V. Nsonsonoe ne dwumadie a ɛda pilot-solenoid valves ne direct-Acting solenoid valves ntam .
Wɔ solenoid valve ahorow no mu no, pilot-a wɔde di dwuma na ɛyɛ tẽẽ-Acting yɛ ahorow abien a wɔtaa yɛ. Ɛsono wɔn wɔ adwumayɛ nnyinasosɛm ne dwumadie tebea mu. Pilot-Solenoid valves a wɔde di dwuma no dannan gas ne nsu ntam fa pilot holes so, bere a direct-Acting solenoid valves de ne ho to nhyɛso nsonsonoe so de hwɛ sɛnea valve no mu ntini no kɔ so no so. Saa nsonsonoe yi ma solenoid valve ahorow abien no mu biara nya wɔn ankasa mfaso bere a wɔyɛ wɔn ade wɔ mfiridwuma mu ahwehwɛde ahorow ho no. Sɛ nhwɛso no, wɔ tebea horow bi a ɛhwehwɛ sɛ wɔyɛ ho biribi ntɛmntɛm na ɛyɛ mmerɛw kɛse mu no, ebia direct-Solenoid valve ahorow a ɛyɛ adwuma no fata kɛse. Wɔ tebea horow a ɛho hia sɛ wɔde di dwuma yiye na ɛmma ahoɔden a wɔde di dwuma no sua no, pilot-operated solenoid valves betumi anya ano.
Nneɛma a wɔayɛ no tẽẽ-a ɛyɛ solenoid valve ahorow a ɛyɛ adwuma no yɛ mmerɛw koraa. Wɔn nnyinasosɛm a ɛyɛ adwuma no gyina anyinam ahoɔden tumi so titiriw na ama valve no mu ayɛ adwuma tẽẽ. Nanso, saa nhyehyɛe yi nso wɔ sintɔ atitiriw abien. Nea edi kan no, esiane sɛ wɔhwehwɛ anyinam ahoɔden tumi kɛse nti, electromagnet coil no dodow kɔ soro sɛnea ɛfata, na ɛno nso ma ahoɔden a wɔde di dwuma no kɔ soro. Nea ɛto so abien no, Direct-a ɛyɛ solenoid valve ahorow a ɛyɛ adwuma no yɛ nea ɛyɛ mmerɛw kakra wɔ nhyɛso ho. Sɛ nhyɛso no boro anohyeto pɔtee bi so (mpɛn pii no ɛboro 0.7MPa) a, pii tẽẽ-Acting solenoid valves ntumi nyɛ adwuma yiye. Eyi fi nhyɛso a ɛkɔ soro dodo a ɛyɛ adwuma wɔ valve no mu titiriw, na ɛma ɛyɛ den ma anyinam ahoɔden tumi no sɛ ɛbɛma valve no mu ayɛ adwuma. Ɛmfa ho eyi no, Direct-Acting solenoid valves nso wɔ wɔn mfaso: nhyehyɛe a ɛnyɛ den, bo a ɛyɛ den ne huammɔdi dodow a ɛba fam.
2. Wɔde nyansa ayɛ pilot-a wɔde di dwuma wɔ solenoid valve no ho. Ɛgyae atetesɛm mu electromagnetic force drive no na mmom ɛde mframa nhyɛso di dwuma de ma valve no mu ntini no yɛ adwuma. Wɔ solenoid valve a ne kɛse boro 4mm no, wɔtaa yɛ pilot valve ne valve titiriw. Bere a wɔde solenoid valve no ahyɛ mu akyi no, pilot valve no bebue na ahwɛ valve titiriw no bue so denam ne output signal no so. Ɛfata sɛ yɛhyɛ no nsow sɛ valve titiriw no yɛ pneumatic control valve ankasa, na ne dwumadie hwehwɛ sɛ mframa a ɛfiri mu mmienu no yɛ adwuma bom: baako ne valve mframa titire, na baako nso ne pilot valve mframa fibea.
Sɛ mframa fibea titiriw no de mframa kɔ pilot valve no mu fa mframa a ɛwɔ solenoid valve no mu no mu a, wɔfrɛ saa nhyehyɛe yi sɛ ɛyɛ pilot type a ɛwɔ mu. Sɛ wɔde gas a efi fibea bi a ɛnyɛ gas fibea titiriw no mu no ma a, wɔfrɛ no abɔnten pilot type. Wɔ Mfonini 8 mu no, benkum so kyerɛ nhwɛso a ɛfa abɔnten so wimhyɛnkafo-a ɛyɛ adwuma wɔ solenoid valve ho, bere a nifa so kyerɛ nhwɛso a ɛfa wimhyɛn mu wimhyɛnkafo a ɛwɔ mu-adwumayɛ solenoid valve ho.
Wɔada honam fam ntotoho a ɛda kɔbere a ɛwɔ mu ne akyi kɔbere ntam no adi wɔ mfonini a edi hɔ no mu.
Saa solenoid valve ahorow abien yi, a ɛne pilot a ɛwɔ mu ne akyi pilot, taa tra ase wɔ nhyehyɛe koro no ara mu. Mpɛn pii no, wimhyɛn mu wimhyɛnkafo no betumi adi mmere dodow no ara ahiade ho dwuma dedaw. Nanso, wɔ tebea pɔtee bi mu no, abɔnten akannifo bɛyɛ nea ɛho hia kɛse mpo. Sɛ nhwɛso no, bere a mframa fibea nhyɛso a ɛwɔ valve titiriw no mu no sakra na ebetumi akɔ fam wɔ 0.2MPa ase, anaasɛ bere a ɛwɔ vacuum tebea mu no, efisɛ wontumi mfa gas fibea a ɛwɔ pilot valve no mu no ne valve titiriw no de no nkyɛ, anyɛ saa a ebetumi ama main valve no antumi anbue. Saa bere yi, mframa fibea a ɛde ne ho a nhyɛso boro 0.2MPa na ɛho hia na ama pilot valve no anya ahoɔden. Bio nso, sɛ nhyɛso nsonsonoe a ɛda mframa a ɛkɔ mu ne nea ɛkɔ mu no ntam no yɛ kɛse, anaasɛ bere a mframa kwan no nhyɛso titiriw no boro 1MPa no, ebia ɛho behia sɛ wimhyɛn no mu wimhyɛn no yɛ kɛse denam mframa kwan nhyɛso no a wɔde bɛhyɛ valve no mu tẽẽ no so. Abɔnten so wimhyɛnkafo no di ɔhaw no ho dwuma denam gas kwan biako a ɔde ba pilot port no mu tẽẽ a enhia sɛ ɔde electromagnetic valve ka ho no so; Mframa paipu nkutoo na ɛsɛ sɛ wɔde ka ho.
Sɛ yɛde rewie a, pilot-operated solenoid valves wɔ mfaso a ɛwɔ electromagnetic ti nketewa ne ahoɔden a wɔde di dwuma kakraa bi so. Ɛyɛ aesthetically pleasing na ɛkora installation space so. Saa bere yi nyinaa, ɛma ɔhyew kakraa bi na ɛwɔ ahoɔden a ɛyɛ nwonwa-akora so nkɛntɛnso. Nea ɛho hia kɛse no, esiane ɔhyew a ɛba fam nti, ɛnyɛ den koraa sɛ coil no bɛhyew na wobetumi de ahyɛ mu bere tenten. Eyi ho hia titiriw wɔ nneɛma a wɔde di dwuma ankasa mu. Sɛ nhwɛso no, wɔatew tumi a solenoid valve ahorow bi a efi SMC mu no wɔ no so akɔ fam akodu 0.1W, na ɛma ahoɔden a ɛkɔ so no ntumi nyɛ hyew dodo. Tumi a ɛwɔ tẽẽ-a ɛyɛ adwuma wɔ solenoid valve ahorow mu no yɛ 4-20W, a ɛwɔ tumi tiawa bi-bere. Bio nso, tumi a ɛtaa ba-wɔ asiane a ɛne sɛ wɔbɛhyew wɔn ho. Enti, wɔ tebea horow a ɛho hia sɛ wɔde anyinam ahoɔden ma bere tenten anaasɛ wɔ frequency a ɛkorɔn mu no, pilot-operated solenoid valves bɛyɛ nea wɔpɛ. Nokwarem no, solenoid valve ahorow a wɔtaa de di dwuma nnɛ no mu dodow no ara agye pilot-adwumayɛ. Wɔ solenoid valve ahorow a ɛma nsu fa mu nkutoo mu no, nea ɛyɛ adwuma tẽẽ no da so ara yɛ dodow pɔtee bi. Eyi fi nokwasɛm a ɛyɛ sɛ efĩ a ɛwɔ nsu no mu no betumi asiw pilot valve akwan teateaa no ano titiriw.
Nea edi hɔ no, yɛbɛhwehwɛ nneɛma abiɛsa a ɛwɔ abiɛsa-gyinabea anum-way solenoid valves: mfinimfini-asɔ, mfinimfini-akɔ, ne medium-nhyɛso, ne wɔn applications nso. Saa solenoid valve yi de anyinam ahoɔden a wɔde di dwuma abien di dwuma. Sɛ electromagnet abien no mu biara nnya ahoɔden a, valve no mu ntini no bɛkɔ mfinimfini wɔ nsuten a ɛkari pɛ a ɛwɔ afã abien no nyinaa no ase. Saa bere yi, ON{8}}a ɛnyɛ tebea a ɛwɔ gas kwan a ɛwɔ solenoid valve no mu no bɛkyerɛ ne su pɔtee - mfinimfini nsɔano, mfinimfini mframa anaa mfinimfini nhyɛso. Yɛbɛhwehwɛ nnyinasosɛm ne dwumadie tebea a ɛwɔ saa ahodoɔ mmiɛnsa yi mu mmiako mmiako.
1.Analysis of the middle seal state: Sɛ coils abien no mu biara nya ahoɔden a, nhyɛso a ɛwɔ cylinder no anim ne akyi dan mu no bɛkɔ so atra tebea no mu bere a coils no ayɛ de-anya ahoɔden na ɛrensakra no. Bere koro no ara mu no, wɔato mframa a wɔde fa mu ne nea wɔde fi mu no nyinaa mu. Nanso, tebea yi a wɔbɛkɔ so akura mu bere tenten no betumi ama nkakrankakra akari pɛ esiane nsu nketenkete a ɛretu nti. schematic diagram no na wɔakyerɛ wɔ (Mfonini 10).
Esiane sɛ mframa no yɛ den na ɛyɛ nokwasɛm a ɛyɛ sɛ mframa mu nneɛma te sɛ cylinders, valves ne gas pipe joints ntumi ntu koraa-free nti, cylinder no ntumi nhwɛ so yiye wɔ mfinimfini gyinabea no gyinabea bere tenten. Saa tebea a ɛkari pɛ yi bɛyera nkakrankakra bere a bere kɔ so no, na ɛbɛma cylinder no gyinabea pɛpɛɛpɛ so atew. Nanso, wɔ saa adwumayɛ tebea horow a cylinder no gyinabea pɛpɛɛpɛyɛ no nyɛ nea wɔhwehwɛ kɛse na bere a wɔde gyina no yɛ tiaa no, wobetumi akɔ so asusuw mfinimfini-nsɔano cylinder no ho sɛ wɔde bedi dwuma.
2. Medium discharge kwan: Sɛ coil abien no mu biara nya ahoɔden a, nhyɛso biara nni cylinder no anim ne akyi dan mu, na mframa a wɔde fa mu no kɔ so to mu bere koro no ara mu. Saa bere yi, nhyɛso a ɛwɔ cylinder no anim ne akyi dan mu no bɛfa solenoid valve no mu mframa a ɛkɔ mu no mu abien no mu. Yebetumi aka ne nnyinasosɛm a ɛyɛ adwuma no ho asɛm wɔ Mfonini 11 mu.
Sɛ wode toto mfinimfini-nsɔano valve ho a, mfinimfini-discharge circuit design no betumi ama mid-bere a ɛware. Wɔ tebea horow a ɛsɛ sɛ cylinder no kɔ vertically mu no, mid-stop time no yɛ tenten kakra, nanso gyinabea a ɛyɛ pɛpɛɛpɛ ahwehwɛde no nyɛ katee koraa, mid{5}}release circuit no yɛ nea ɛfata sɛ wosusuw ho.
3. Medium pressure state: Sɛ coils abien no mu biara nnya ahoɔden a, nhyɛso a ɛwɔ cylinder no anim ne akyi dan mu no bɛkɔ so atra tebea no mu bere a coil a atwam no yɛ de-ahoɔden, na wɔde nhyɛso a ɛkɔ so no bedi dwuma de ahwɛ ahu sɛ nhyɛso a ɛwɔ cylinder no anim ne akyi dan mu no ne nea wɔde intake no ba no hyia. Saa bere yi de, mframa a wɔde fa mu no bue bere a wɔato mframa a wɔde fi mu no mu no. Adwumayɛ nnyinasosɛm no wɔakyerɛ wɔ Mfonini 12 mu.
Sɛ wɔamfa cylinder no anhyɛ axial external load force ase a, piston no bɛkɔ so atra tebea a ɛkari pɛ mu na ɛnam so akɔ so ayɛ pɛpɛɛpɛ wɔ tebea biara mu wɔ stroke no mu. Saa ɔmansin yi su hwehwɛ sɛ wɔde cylinder no si hɔ tẽẽ. Enti, wɔ adwumayɛ tebea mu a ɛkorɔn-precision positioning ho hia na axial external load tumi biara nni hɔ no, wɔkamfo kyerɛ sɛ fa medium-pressure valve a wɔde ka piston rod cylinder abien bom.
