ဟိုက်ဒရောလစ် ပိုက်ခေါင်း အမှတ်စဉ် — ဂဏန်းတစ်လုံးချင်းစီ၏ အဓိပ္ပာယ်
Every hydraulic hose fitting we buy carries its full specification inside its own part number. The five digits in front are not a catalogue reference — each one answers a specific question about the fitting: what head it has, which thread standard it belongs to, how it seals, which way it bends, and what class of hose it crimps onto. Learn the five positions and you can read a fitting you have never seen before, from any of our suppliers.
ပိုက်ခေါင်း အမှတ်စဉ်၏ ရှေ့ဂဏန်း ငါးလုံးသည် စာရင်းနံပါတ် မဟုတ်ပါ။ တစ်လုံးချင်းစီက ခေါင်းပုံစံ၊ သံချည်စံနှုန်း၊ အဆက်မျက်နှာပြင်၊ ကွေးထောင့်နှင့် ပိုက်အမျိုးအစားကို ပြောပြပါသည်။ ဤငါးနေရာကို မှတ်မိပါက မမြင်ဖူးသော ပိုက်ခေါင်းကိုပင် ဖတ်နိုင်ပါသည်။
Why this matters at the counter
ရောင်းကောင်တာတွင် ဘာကြောင့် အရေးကြီးသနည်း
A customer arrives with a burst hose and no paperwork. If you can read the code stamped on the old fitting, you can supply the right replacement without guessing, without a sample being sent back to the supplier, and without the customer returning three days later with a joint that weeps.
It also protects against the most expensive mistake in this product line: two fittings whose threads screw together perfectly but whose sealing faces do not match. The thread going together proves nothing. The code tells you the rest.
ဖောက်သည်က ပိုက်ဟောင်းကို စာရွက်စာတမ်း မပါဘဲ ယူလာပါသည်။ ခေါင်းပေါ်က အမှတ်စဉ်ကို ဖတ်တတ်လျှင် မှန်ကန်သော အစားထိုးပစ္စည်းကို ချက်ချင်း ထုတ်ပေးနိုင်ပါသည်။ သံချည်ဝင်ရုံဖြင့် အဆင်ပြေသည်ဟု မထင်ပါနှင့် — အဆက်မျက်နှာပြင် မတူလျှင် ယိုပါလိမ့်မည်။
How the code is built
အမှတ်စဉ် ဖွဲ့စည်းပုံ
The structure is the same on every supplier sheet we buy from — TOPA, FENGHUA, LAIKE Hydraulic and SZ all quote against it:
[ Head ][ Thread standard ][ Sealing face ][ Bend ][ Hose class ] – [ Thread size ] – [ Hose bore ]
Taking 22692-08-08 as the example, that reads as follows.
| Position | Digit | What it means |
|---|---|---|
| 1 — Head | 2 | Female swivel, swaged nut |
| 2 — Thread standard | 2 | BSPP (G) |
| 3 — Sealing face | 6 | 60° cone |
| 4 — Bend | 9 | 90° elbow |
| 5 — Hose class | 2 | 4-wire spiral hose |
| First dash | 08 | Thread size — G1/2 |
| Second dash | 08 | Hose bore — 13 mm, DN13, 1/2 inch |
22692-08-08 = အမ လည်ပတ်ခေါင်း · BSPP သံချည် · ၆၀ ဒီဂရီ အခြွန် · ၉၀ ဒီဂရီ ကွေး · သံကြိုး ၄ ထပ်ပိုက် · G1/2 သံချည် · ၁၃ မီလီမီတာ ပိုက်
Position 1 — the head
ပထမနေရာ — ခေါင်းပုံစံ
What kind of end it is. Most hose ends are a female swivel, which is why most of our range begins with 2 or 3.
| Digit | Head type | In plain terms |
|---|---|---|
| 1 | Male | Thread on the outside |
| 2 | Female swivel — swaged nut | Nut spins freely on the hose end |
| 3 | Female swivel — second body series | The same connection in a different body style |
| 5 | Bite type | Cutting ring bites into the tube |
| 6 | Socket-in | Pushes into a socket |
| 7 | Banjo | Ring and bolt, for tight spaces |
| 8 | Flange | Four-bolt head for large bore |
| 0 | Ferrule | Crimp sleeve only, no thread |
Position 2 — the thread standard
ဒုတိယနေရာ — သံချည် စံနှုန်း
This is the digit that decides which shelf you walk to. Nine standards appear across our range, and each maps to a published international specification.
| Digit | Thread standard | Standard it follows | Families we stock |
|---|---|---|---|
| 0 | Metric | ISO 8434-1 / DIN 2353, plus banjo sizes | 201 202 204 205 206 207 301 302 304 305 307 900 102 104 105 108 700 |
| 2 | BSPP (G) — parallel | ISO 228 | 221 222 226 227 |
| 3 | BSPT (R) — tapered | ISO 7 | 130 |
| 4 | ORFS — O-ring face seal | SAE J1453 / ISO 8434-3 | 242 342 142 |
| 5 | NPT | ANSI B1.20.1 | — not currently stocked |
| 6 | JIC 37° flare | SAE J514 / ISO 8434-2 | 267 167 |
| 7 | SAE flange | SAE J518 / ISO 6162 | 873 876 879 |
| 8 | JIS Metric — Komatsu | JIS B2070 | 286 186 881 |
| 9 | JIS British | BSPP threads, Japanese seat | 296 |
ဤဂဏန်းက သံချည် စံနှုန်းကို ပြောပါသည်။ မြန်မာဈေးကွက်တွင် BSPP (၂) အများဆုံး ဖြစ်ပြီး ဂျပန်ကား/စက်များအတွက် JIS British (၉)၊ Komatsu စက်များအတွက် JIS Metric (၈) ကို သုံးပါသည်။
Position 3 — the sealing face
တတိယနေရာ — အဆက် မျက်နှာပြင်
Where the joint actually seals. This is the digit people ignore, and it is the one that decides whether the joint holds.
| Digit | Sealing face | What you see on the part |
|---|---|---|
| 1 | Multiseal | Seals across more than one form |
| 2 | Flat seat | Flat face — an O-ring or a bonded washer does the sealing |
| 3 | Flat + O-ring | Flat face with the O-ring captive in a groove |
| 4 | 24° cone, light series (L) | Shallow cone, medium pressure — DIN 2353 L |
| 5 | 24° cone, heavy series (S) | Shallow cone, high pressure — DIN 2353 S |
| 6 | 60° cone | The common BSP and JIS cone |
| 7 | 74° cone | The JIC cone — 37° per face |
| 8 | 90° | Banjo and specialist forms |
Positions 4 and 5 — bend and hose class
စတုတ္ထနှင့် ပဉ္စမ — ကွေးထောင့်နှင့် ပိုက်အမျိုးအစား
Position 4 — the bend
စတုတ္ထ — ကွေးထောင့်
| Digit | Bend |
|---|---|
| 1 | Straight |
| 4 | 45° elbow |
| 6 | 60° elbow |
| 9 | 90° elbow |
On elbows a trailing H number is the leg drop in millimetres — 87392-12H100 is the same elbow as 87392-12 with a 100 mm leg. We carry H80, H100, H125, H150 and H175.
Position 5 — the hose class
ပဉ္စမ — ပိုက်အမျိုးအစား
| Digit | Hose it is built for |
|---|---|
| 1 | 1 and 2-wire braid — R1 / EN 853 1SN, R2 / EN 853 2SN |
| 2 | 4-wire spiral — 4SP, 4SH / EN 856 |
| 3 | 6-wire spiral |
This is not a size code, and it is the position most often misread. The same family, same bend and same bore exists with both 1 and 2 in 363 places in our range — the fitting body differs because the hose it crimps onto differs, not because the size does.
ပဉ္စမဂဏန်းသည် အရွယ်အစား မဟုတ်ပါ — ပိုက်၏ သံကြိုး အထပ်အရေအတွက်ကို ပြောပါသည်။
The two dash numbers
နံပါတ် နှစ်ခု
The last dash is always the hose bore. The first is the thread. They are usually different numbers, and that is correct — the thread is larger than the bore it serves in every standard.
Hose bore — the dash size
ပိုက် အတွင်းအချင်း
The dash number is the bore in sixteenths of an inch. Our supplier sheets quote the rounded EN/ISO nominal bore (DN), not the exact decimal.
| Dash | Bore | Inch | BSP thread at the same dash |
|---|---|---|---|
| -04 | 6 mm (DN6) | 1/4 | G1/4 |
| -05 | 8 mm (DN8) | 5/16 | — |
| -06 | 10 mm (DN10) | 3/8 | G3/8 |
| -08 | 13 mm (DN13) | 1/2 | G1/2 |
| -10 | 16 mm (DN16) | 5/8 | G5/8 |
| -12 | 19 mm (DN19) | 3/4 | G3/4 |
| -16 | 25 mm (DN25) | 1 | G1 |
| -20 | 32 mm (DN32) | 1-1/4 | G1-1/4 |
| -24 | 38 mm (DN38) | 1-1/2 | G1-1/2 |
| -32 | 51 mm (DN51) | 2 | G2 |
Two exceptions to learn
ခြွင်းချက် နှစ်ခု
| Exception | How to read it |
|---|---|
| Flange fittings — 873, 876, 879 | The first dash is the flange size, not the thread. 87312-16-12 is a 1 inch flange on 3/4 inch hose — that is correct, not a mismatch. |
| Komatsu families — 186, 286 | The first dash is the metric thread in millimetres. 18611-33-16 means M33×1.5 on 25 mm hose. A bracketed number such as (1.0) is the thread pitch. |
Where a fitting carries only one dash, both sizes are the same. 87612-08 is a 1/2 inch flange on 13 mm hose.
Suffix letters
နောက်ဆက် အက္ခရာများ
| Suffix | Meaning | Example |
|---|---|---|
| D | Double hexagon body | 22611D-04-04 |
| T | Back-slip nut | quoted on request |
| W | Thrust-wire nut | quoted on request |
| SP | 60° seat on the BSPT thread side | 13012-08-08SP |
| H80 – H175 | Elbow leg drop in mm | 87392-16-12H100 |
| (1.0) (1.5) | Metric thread pitch, Komatsu families | 28611-10-04(1.0) |
Family index — every series we buy
Family စာရင်း — ကျွန်ုပ်တို့ ဝယ်ယူသော အားလုံး
Forty-seven three-digit families appear across our supplier price comparison. Four carry one digit that falls outside the published rule and are marked accordingly — ask the supplier rather than assuming.
| Code | Head | Thread | Sealing face | Bores | Parts |
|---|---|---|---|---|---|
| 221 | Female swivel | BSPP (G) | Multiseal | — | 15 |
| 222 | Female swivel | BSPP (G) | Flat seat | 6–25 mm | 59 |
| 226 | Female swivel | BSPP (G) | 60° cone | 6–51 mm | 102 |
| 227 | Female swivel | BSPP (G) | 74° cone | — | 49 |
| 322 | Female swivel | BSPP (G) | Flat seat | — | 2 |
| 267 | Female swivel | JIC | 74° cone | 6–25 mm | 113 |
| 296 | Female swivel | JIS British | 60° cone | 6–51 mm | 71 |
| 286 | Female swivel | JIS Metric (Komatsu) | 60° cone | — | 64 |
| 201 | Female swivel | Metric | Multiseal | — | 41 |
| 202 | Female swivel | Metric | Flat seat | — | 80 |
| 204 | Female swivel | Metric | 24° cone, light (L) | 10–13 mm | 106 |
| 205 | Female swivel | Metric | 24° cone, heavy (S) | — | 82 |
| 206 | Female swivel | Metric | 60° cone | — | 53 |
| 207 | Female swivel | Metric | 74° cone | 10–13 mm | 86 |
| 301 | Female swivel | Metric | Multiseal | 6–25 mm | 61 |
| 302 | Female swivel | Metric | Flat seat | 6–32 mm | 81 |
| 304 | Female swivel | Metric | 24° cone, light (L) | 6–38 mm | 88 |
| 305 | Female swivel | Metric | 24° cone, heavy (S) | 6–25 mm | 51 |
| 307 | Female swivel | Metric | 74° cone | 6–32 mm | 66 |
| 242 | Female swivel | ORFS | Flat seat | 6–25 mm | 76 |
| 342 | Female swivel | ORFS | Flat seat | 6–32 mm | 34 |
| 126 | Male | BSPP (G) | 60° cone | — | 8 |
| 130 | Male | BSPT (R) | — | — | 12 |
| 167 | Male | JIC | 74° cone | 6–25 mm | 9 |
| 186 | Male | JIS Metric (Komatsu) | 60° cone | — | 10 |
| 102 | Male | Metric | Flat seat | 6–10 mm | 13 |
| 103 | Male | Metric | Flat + O-ring | — | 2 |
| 104 | Male | Metric | 24° cone, light (L) | 6–13 mm | 14 |
| 105 | Male | Metric | 24° cone, heavy (S) | 6–13 mm | 12 |
| 106 | Male | Metric | 60° cone | — | 11 |
| 107 | Male | Metric | 74° cone | — | 11 |
| 108 | Male | Metric | 90° | 6–13 mm | 17 |
| 142 | Male | ORFS | Flat seat | — | 1 |
| 881 | Flange | JIS Metric (Komatsu) | Multiseal | — | 6 |
| 873 | Flange | SAE | Flat + O-ring | 13–25 mm | 64 |
| 876 | Flange | SAE | 60° cone | 13–51 mm | 71 |
| 879 | Flange | SAE (confirm) | ? | 19–38 mm | 50 |
| 710 | Banjo | ? (confirm) | — | — | 3 |
| 700 | Banjo | Metric | — | 6–19 mm | 43 |
| 500 | Bite type | Metric | — | — | 11 |
| 014 | Ferrule | ? (confirm) | 24° cone, light (L) | — | 6 |
| 033 | Ferrule | BSPT (R) | Flat + O-ring | — | 11 |
| 001 | Ferrule | Metric | Multiseal | — | 13 |
| 002 | Ferrule | Metric | Flat seat | — | 16 |
| 004 | Ferrule | Metric | 24° cone, light (L) | — | 10 |
| 006 | Ferrule | Metric | 60° cone | — | 3 |
| 900 | ? | Metric (confirm) | — | — | 29 |
Worked examples
နမူနာများ
| Part number | Reads as |
|---|---|
| 22611-06-04 | Female swivel · BSPP · 60° cone · straight · 1&2-wire hose · G3/8 thread on 6 mm hose |
| 29692-12-12 | Female swivel · JIS British · 60° cone · 90° elbow · 4-wire hose · G3/4 on 19 mm |
| 26791-06-06 | Female swivel · JIC · 74° cone · 90° elbow · 1&2-wire hose · 9/16-18 UNF on 10 mm |
| 34212-16-16 | Female swivel · ORFS · flat seat · straight · 4-wire hose · 1-7/16-12 on 25 mm |
| 30412-22-08 | Female swivel · metric · 24° cone light series · straight · 4-wire hose · M22×1.5 on 13 mm |
| 87392-16-12H100 | Flange · SAE J518 Code 61 · 90° elbow · 1 inch flange (44.4 mm head) on 19 mm hose, 100 mm leg |
| 00210-08 | Ferrule only · 2 wire braid · 13 mm bore |
The flange families are a special case
Flange အမျိုးအစား — သီးသန့် မှတ်ရန်
On families 873, 876 and 879 the third digit is the pressure class rather than a sealing face. Both classes are SAE J518 four-bolt flanges and both bolt to a flat pad, but the head diameters differ — a Code 62 head will not sit in a Code 61 clamp, and a Code 61 head in a Code 62 port is rated for half the pressure.
| Size | Dash | Code 61 head — series 873 | Code 62 head — series 876 / 879 |
|---|---|---|---|
| 1/2 inch · DN13 | -08 | 30.2 mm | 31.7 mm |
| 3/4 inch · DN19 | -12 | 38.1 mm | 41.3 mm |
| 1 inch · DN25 | -16 | 44.4 mm | 47.6 mm |
| 1-1/4 inch · DN32 | -20 | 50.8 mm | 54.0 mm |
| 1-1/2 inch · DN38 | -24 | 60.3 mm | 63.5 mm |
| 2 inch · DN51 | -32 | not stocked | 79.4 mm |
Code 61 is the 3,000 psi standard series; Code 62 is the 6,000 psi high-pressure series. Every head diameter above matches the published SAE J518 table.
Code 61 နှင့် Code 62 ခေါင်းအချင်း မတူပါ — အစားထိုး၍ မရပါ။
What the code does not tell you
အမှတ်စဉ်က မပြောသော အရာများ
The code identifies the connection. It does not decide whether the assembly is fit for the job. Before cutting a hose, establish the working pressure including surges, the fluid and its temperature, the environment, the bore required for the flow, and the routing. Those come from the customer and the machine, not from the part number.
Nor does the code substitute for the supplier drawing where an exact seat angle, torque figure or pressure rating decides whether a joint holds. Where it matters, take the figure from the manufacturer document for that exact part.
အမှတ်စဉ်က အဆက်အသွယ်ကိုသာ ပြောပါသည်။ ဖိအား၊ အရည်အမျိုးအစား၊ အပူချိန်နှင့် တပ်ဆင်လမ်းကြောင်းကို ဖောက်သည်ထံမှ မေးရပါမည်။
Related Articles
ဆက်စပ်ဆောင်းပါးများ
- Identifying a Part Number — From Sample to Order
- Measuring a Thread — Diameter, Pitch and Seat
- Building a Hose Assembly — Procedure and Safety
- Compatibility and Substitution Rules
- Pressure, Temperature and Fluid Compatibility
- Hydraulic Hose and Fittings — Frequently Asked Questions
- ZMTE Hydraulic Hose and Fittings — Brand Overview
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