IHARA SCIENCE CORPORATION
IHARA ZD-ZC Series Stainless Steel Check Valves
Product Made In Japan
Manufacturer: IHARA SCIENCE CORPORATION
Model: ZD-ZC Series
Features
- Compact and Light
- Applicable fluid: Water, Air, Gas (N2)
- Range of Working Temperature: 0℃ ~ 200℃ (Fluoro-rubber)
- When operating initially, try to move the poppet once, before putting into operation, as the O-ring may be close contact.
- Max Working Pressure: 5MPa
- Wide selection, Easy choice, Standardized Half union type
- BI-LOK connection: 1/4OD, 3/8OD, 1/2OD, ø 6, ø 8, ø 10, ø 12
- Screwed connection (R, NPT): 1/8, 1/4, 3/8, 1/2
- We will be corresponding to the different shape and dimension from this catalogue, please inquire us regardless of quantity.
Cracking Features
| PSIG | kPa | MPa | Product Label |
|---|---|---|---|
| 1/3 | 1.96 | 0.003 | 2kPa |
| 1 | 6.86 | 0.007 | 7kPa |
| 10 | 68.6 | 0.069 | 70kPa |
- Cracking pressure other than those listed above will be considered.
- In case of lower cracking pressure than 10KPa, the reverse pressure might be necessary, to re-seal of poppet.
Reverse pressure is as below
| Size | Necessary reverse pressure |
|---|---|
| (1/4OD or 1/4″ or ø 6) | Over 40KPa |
| 1/4OD or 1/4″ or ø 6 < | Over 60KPa |
Part Name and Material
| No | Part Name | Material |
|---|---|---|
| 1 | Body A | SUS316 |
| 2 | Body B | SUS316 |
| 3 | Poppet | SUS316 |
| 4 | Spring | SUS316 |
| 5 | O-ring | Fluoro-rubber |
| 6 | O-ring | Fluoro-rubber |
| 7 | Nut | SUS316 |
| 8 | Front ferrule | SUS316 |
| 9 | Back ferrule | SUS316 |
Graph of Flow rate Characteristic per Craking Pressure
CHECK VALVE ZD SERIES
● HALF UNION
| FLOW | Part No | [IN] T | [OUT] | 0A | h | H | F | L | ||
|---|---|---|---|---|---|---|---|---|---|---|
| R | INCH | MM | INCH | MM | INCH | MM | ||||
| R – INCH BILOK | ZD-2RM4D-S-«KPa | 1/8 | 1/4 | 6.35 | 5/8 | 15.88 | 9/16 | 14.29 | 15.4 | 50.5 |
| ZD-4RM2D—S—*KPa | 1/4 | 1/8 | 3.18 | 5/8 | 15.88 | 1/2 | 12.7 | 13.0 | 52.4 | |
| ZD-4RM4D-S-*KPa | 1/4 | 1/4 | 6.35 | 5/8 | 15.88 | 9/16 | 14.29 | 15.4 | 54.0 | |
| ZD-6RM6D-S-»KPa | 3/8 | 3/8 | 9.53 | 15/1 f | 23.81 | 11/16 | 17.46 | 17.0 | 72.2 | |
| ZD-8RM8D-S-*KPa | 1/2 | 1/2 | 12.7 | 15/16 | 23.81 | 7/8 | 22.23 | 23.0 | 80.1 | |
| R – M BILOK | ZD-2RM6MD-S-*KPa | 1/8 | — | 6 | — | 17 | — | 14 | 15.4 | 50.2 |
| ZD-4RM6MD-S-«KPa | 1/4 | — | 6 | — | 17 | — | 14 | 15.4 | 54.5 | |
| ZD-4RM8MD-S-*KPa | 1/4 | — | 8 | — | 17 | — | 17 | 16.3 | 55.7 | |
| ZD-4RM10MD-S-*KPa | 1/4 | — | 10 | — | 24 | — | 19 | 17.3 | 73.2 | |
| ZD-6RM12MD-S-*KPa | 3/8 | — | 12 | — | 24 | — | 22 | 22.9 | 80.4 | |
| ZD-8RM12MD-S-«KPa | 1/2 | — | 12 | — | 24 | — | 22 | 22.9 | 84.4 | |
| FLOW | Part No | [IN] T | [OUT] | 0A | h | H | F | L | ||
|---|---|---|---|---|---|---|---|---|---|---|
| R | INCH | MM | INCH | MM | INCH | MM | ||||
| NPT – INCH BILOK | ZD-2NM4D-S-»KPa | 1/8 | 1/4 | 6.35 | 5/8 | 15.88 | 9/16 | 14.29 | 15.4 | 50.5 |
| ZD-4NM4D-S-*KPa | 1/4 | 1/4 | 6.35 | 5/8 | 15.88 | 9/16 | 14.29 | 15.4 | 54.0 | |
| ZD-6NM4D-S-*KPa | 3/8 | 1/4 | 6.35 | 11/16 | 17.46 | 9/16 | 14.29 | 15.4 | 54.0 | |
| ZD-6NM6D-S-*KPa | 3/8 | 3/8 | 9.53 | 15/16 | 23.81 | 11/16 | 17.46 | 17.0 | 72.2 | |
| ZD-8NM8D-S-»KPa | 1/2 | 1/2 | 12.7 | 15/16 | 23.81 | 7/8 | 22.23 | 23.0 | 79.6 | |
| NPT -M BILOK | ZD—2NM6MD—S—*KPa | 1/8 | — | 6 | — | 17 | — | 14 | 15.4 | 50.2 |
| ZD-4NM6MD-S-*KPa | 1/4 | — | 6 | — | 17 | — | 14 | 15.4 | 54.5 | |
| ZD-4NM8MD-S-«KPa | 1/4 | — | 8 | — | 17 | — | 17 | 16.3 | 55.7 | |
| ZD-6NM12MD-S-*KPa | 3/8 | — | 12 | — | 24 | — | 22 | 22.9 | 80.4 | |
| ZD-8NM12MD-S-*KPa | 1/2 | — | 12 | — | 24 | — | 22 | 22.9 | 84.4 | |
● HALF UNION
| FLOW | Part No | [in; | 0A | [OUT] T | h | H | F | L | ||
|---|---|---|---|---|---|---|---|---|---|---|
| INCH | MM | R | INCH | MM | INCH | MM | MM | MM | ||
| INCH-BILOK -R | ZD—4D2RM-S-*KPa | 1/4 | 6.35 | 1/8 | 5/8 | 15.88 | 9/16 | 14.29 | 15.4 | 50.5 |
| ZD-4D4RM-S-*KPa | 1/4 | 6.35 | 1/4 | 5/8 | 15.88 | 9/16 | 14.29 | 15.4 | 55.0 | |
| ZD-4D6RM-S-*KPa | 1/4 | 6.35 | 3/8 | 11/16 | 17.46 | 9/16 | 14.29 | 15.4 | 55.9 | |
| ZD—6D4RM-S-*KPa | 3/8 | 9.53 | 1/4 | 15/16 | 23.81 | 11/16 | 17.46 | 17.0 | 71.2 | |
| ZD-6D6RM-S-*KPa | 3/8 | 9.53 | 3/8 | 15/16 | 23.81 | 11/16 | 17.46 | 17.0 | 72.2 | |
| ZD—8D8RM—S—*KPa | 1/2 | 12.7 | 1/2 | 15/16 | 23.81 | 7/8 | 22.23 | 23.0 | 79.6 | |
| M—BILOK – R | ZD-6MD4RM-S-*KPa | — | 6 | 1/4 | — | 17 | — | 14 | 15.4 | 54.5 |
| ZD-8MD4RM-S-*KPa | — | 8 | 1/4 | — | 17 | — | 17 | 16.3 | 55.7 | |
| ZD—10MD6RM—S—*KPa | — | 10 | 3/8 | — | 24 | — | 19 | 17.3 | 76.7 | |
| ZD—12MD8RM—S—*KPa | — | 12 | 1/2 | — | 24 | — | 22 | 22.9 | 80.7 | |
● UNION
| FLOW | Part No | [IN—OUT] «A | h | H | F | L | |||
|---|---|---|---|---|---|---|---|---|---|
| INCH | MM | INCH | MM | INCH | MM | MM | MM | ||
| INCH-BILOK -INCH-BILOK | ZD-2D-S-*KPa | 1/8 | 3.18 | 5/8 | 15.88 | 7/16 | 11.11 | 13.0 | 57.4 |
| ZD-4D—S-$KPa | 1/4 | 6.35 | 5/8 | 15.88 | 9/16 | 14.29 | 15.4 | 59.1 | |
| ZD-6D-S-*KPa | 3/8 | 9.53 | 15/16 | 23.81 | 11/16 | 17.46 | 17.0 | 76.4 | |
| ZD-8D-S-»KPa | 1/2 | 12.7 | 15/16 | 23.81 | 7/8 | 22.23 | 23.0 | 82.1 | |
| M—BILOK – M—BILOK | ZD-6MD-S—$KPa | — | 6 | — | 17 | — | 14 | 15.4 | 58.2 |
| ZD-8MD-S-*KPa | — | 8 | — | 17 | — | 17 | 16.3 | 61.0 | |
| ZD-10MD-S-* KPa | — | 10 | — | 24 | — | 19 | 17.3 | 78.3 | |
| ZD-12MD-S-* KPa | — | 12 | — | 24 | — | 22 | 22.9 | 84.5 | |
● HALF UNION
| FLOW | Part No | [IN] 0A | [OUT] T | h | H | F | L | |||
|---|---|---|---|---|---|---|---|---|---|---|
| INCH | MM | Rc | INCH | MM | INCH | MM | MM | MM | ||
| INCH-BILOK -» Rc | ZD-4D4RF-S-«KPa | 1/4 | 6.35 | 1/4 | 3/4 | 19.05 | 9/16 | 14.29 | 15.4 | 58.5 |
| ZD-4D6RF-S-«KPa | 1/4 | 6.35 | 3/8 | 7/8 | 22.23 | 9/16 | 14.29 | 15.4 | 59.5 | |
| ZD-6D4RF- S-«KPa | 3/8 | 9.53 | 1/4 | 15/16 | 23.81 | 11/16 | 17.46 | 17.0 | 72.9 | |
| ZD-6D6RF-S-«KPa | 3/8 | 9.53 | 3/8 | 15/16 | 23.81 | 11/16 | 17.46 | 17.0 | 74.4 | |
| ZD-8D6RF- S-»KPa | 1/2 | 12.7 | 3/8 | 15/16 | 23.81 | 7/8 | 22.23 | 23.0 | 77.2 | |
| ZD-8D8RF- S-»KPa | 1/2 | 12.7 | 1/2 | 1-1/16 | 26.99 | 7/8 | 22.23 | 23.0 | 82.7 | |
| FLOW | Part No | [IN] 0A | [OUT] T | h | H | F | L | |||
|---|---|---|---|---|---|---|---|---|---|---|
| INCH | MM | Rc | INCH | MM | INCH | MM | MM | MM | ||
| Rc -* INCH-BILOK | ZD-4RF4D-S-«KPa | 1/4 | 1/4 | 6.35 | 3/4 | 19.05 | 9/16 | 14.29 | 15.4 | 56.2 |
| ZD-4RF6D-S-»KPa | 1/4 | 3/8 | 9.53 | 15/16 | 23.81 | 11/16 | 17.46 | 17.0 | 71.7 | |
| ZD-6RF4D-S-«KPa | 3/8 | 1/4 | 6.35 | 15/16 | 23.81 | 9/16 | 14.29 | 15.4 | 58.4 | |
| ZD-6RF6D-S-«KPa | 3/8 | 3/8 | 9.53 | 15/16 | 23.81 | 11/16 | 17.46 | 17.0 | 73.9 | |
| ZD-8RF6D-S-»KPa | 1/2 | 3/8 | 9.53 | 1-1/16 | 26.99 | 11/16 | 17.46 | 17.0 | 80.3 | |
| ZD-8RF8D-S-*KPa | 1/2 | 1/2 | 12.7 | 1-1/16 | 26.99 | 7/8 | 22.23 | 23.0 | 84.2 | |
● NIPPLE
| FLOW | Part No | [IN-OUT] T | h | L |
|---|---|---|---|---|
| R | MM | MM | ||
| R -» R | ZD-2RM-S-* KPa | 1/8 | 17 | 42.5 |
| ZD-4RM-S-* KPa | 1/4 | 17 | 50.5 | |
| ZD—6RM—S—* KPa | 3/8 | 24 | 69.0 | |
| ZD-8RM-S-* KPa | 1/2 | 24 | 76.0 |
SOKET
| FLOW | Part No | [IN-OUT] T | h | L |
|---|---|---|---|---|
| Rc | MM | MM | ||
| Rc – Rc | ZD—4RF- S-*KPa | 1/4 | 17 | 54.5 |
| ZD—6RF—S—*KPa | 3/8 | 24 | 71.0 | |
| ZD—8RF—S-*KPa | 1/2 | 27 | 79.0 |
| FLOW | Part No | [IN-OUT] T | h | L |
|---|---|---|---|---|
| NPT | MM | MM | ||
| NPT – NPT | ZD—4NF—S—*KPa | 1/4 | 17 | 54.5 |
| ZD—6NF—S—*KPa | 3/8 | 24 | 71.0 | |
| ZD—8NF—S—*KPa | 1/2 | 27 | 79.0 |
ADAPTER
| FLOW | Part No | [IN] T | [OUT] Ti | F | L |
|---|---|---|---|---|---|
| R | Rc | MM | MM | ||
| R -* Rc | ZD—2RM2RF-S-*KPa | 1/8 | 1/8 | 17 | 45.0 |
| ZD-4RM4RF-S-*KPa | 1/4 | 1/4 | 17 | 52.5 | |
| ZD—6RM6RF-S-*KPa | 3/8 | 3/8 | 24 | 70.0 | |
| ZD—8RM8RF-S-*KPa | 1/2 | 1/2 | 27 | 78.0 |
| FLOW | Part No | [IN] T | [OUT] Ti | F | L |
|---|---|---|---|---|---|
| Rc | R | MM | MM | ||
| Rc – R | ZD-2RF2RM—S-*KPa | 1/8 | 1/8 | 17 | 45.0 |
| ZD-4RF4RM-S-*KPa | 1/4 | 1/4 | 17 | 52.5 | |
| ZD-6RF6RM—S-*KPa | 3/8 | 3/8 | 24 | 70.0 | |
| ZD-8RF8RM-S-*KPa | 1/2 | 1/2 | 27 | 78.0 |
● COMPACT NIPPLE
| FLOW | Part No | [IN-OUT] t | F | L |
|---|---|---|---|---|
| R | MM | MM | ||
| R – R | ZC—4RM—S—*KPa | 1/4 | 17 | 36.0 |
| ZC—6RM—S—*KPa | 3/8 | 19 | 38.0 | |
| ZC—8RM—S—*KPa | 1/2 | 24 | 50.0 |
| FLOW | Part No | [IN-OUT] t | F | L |
|---|---|---|---|---|
| NPT | MM | MM | ||
| NPT – NPT | ZC—4NM—S-* KPa | 1/4 | 17 | 36.0 |
| ZC-6NM-S-* KPa | 3/8 | 19 | 38.0 |
● COMPACT HALF UNION
| FLOW | Part No | [IN] 0A | [OUT] Ti | h | H | F | L | |||
|---|---|---|---|---|---|---|---|---|---|---|
| INCH | MM | R | INCH | MM | INCH | MM | MM | MM | ||
| INCH-BILOK -R | ZC-4D4RM-S-*KPa | 1/4 | 6.35 | 1/4 | 9/16 | 14.29 | 9/16 | 14.29 | 15.4 | 37.8 |
| ZC-4D6RM-S-*KPa | 1/4 | 6.35 | 3/8 | 11/16 | 17.46 | 9/16 | 14.29 | 15.4 | 39.5 | |
| ZC-6D4RM-S-*KPa | 3/8 | 9.53 | 1/4 | 5/8 | 15.88 | 11/16 | 17.46 | 17.0 | 40.0 | |
| ZC-6D6RM-S-*KPa | 3/8 | 9.53 | 3/8 | 11/16 | 17.46 | 11/16 | 17.46 | 17.0 | 41.0 | |
| ZC—8D8RM—S-* KPa | 1/2 | 12.7 | 1/2 | 7/8 | 22.23 | 7/8 | 22.23 | 23.0 | 47.8 | |
| M—BILOK – R | ZC-6MD4RM-S-*KPa | — | 6 | 1/4 | — | 17 | — | 14 | 15.4 | 40.2 |
| ZC-10MD4RM-S-*KPa | — | 10 | 1/4 | — | 19 | — | 19 | 17.3 | 41.1 | |
| ZC-12MD6RM-S-*KPa | — | 12 | 3/8 | — | 22 | — | 22 | 22.9 | 44.5 | |
CUSTOM PRODUCT ZD ZC SERIES
