2- or 3-way piston valves are air-driven
piston valves used in the air systems,
water pressure systems, internal pressure
and external pressure systems of tire-curing
presses. A specific feature is the use of a
special resin in the valve seat, and an excellent
seal is maintained over long periods in the
high-temperature high-pressure environment
required in tire-curing.
It also features easy parts replacement structure in case of maintenance.
Specification
| Fluid | Steam, Gas, Hot Water, Cold Water | |
|---|---|---|
| Maximum Operating Pressure |
3.2 MPa(Max. 460 psi) ** | ** Remarks Max operating pressure is limited as attached. |
| Temperature Range | –30 to 205℃ (–22 to 401℉) Max. 240℃ (464℉) as special option |
|
| Pilot Pressure | 0.25 to 0.35 MPa (36 to 51 psi) | |
| Pilot Port | Rc1/4, NPT1/4, G1/4 | |
| End Connection | Thread (Rc, NPT) | |
| Flange (JIS 20K RF, ASME Class 300, DIN PN40) | ||
Outside
| <Nominal Size DN8 to DN40> | ||||
|---|---|---|---|---|
| End Connection | Port #1, #2 | Thread | Flange | Flange |
| Port #3 | Lower Seat Flange (Threaded) | Lower Seat Flange (Threaded) | Lower Seat Flange with Flange | |
| Function | Normally Closed |
 2-Way : TPC2211-□□ 3-Way : TPC2311-□□ |
 2-Way : TPC2212-□□ 3-Way : TPC2312-□□ |
 3-Way : TPC2313-□□ |
| Normally Open |  2-Way : TPC2221-□□ 3-Way : TPC2321-□□ |
 2-Way : TPC2222-□□ 3-Way : TPC2322-□□ |
 2-Way : TPC2323-□□ |
|
| <Nominal Size DN50 to DN80> (Large Valves) | ||||
|---|---|---|---|---|
| End Connection | Port #1, #2 | Thread | Flange | Flange |
| Port #3 | Lower Seat Flange (Threaded) | Lower Seat Flange (Threaded) | Lower Seat Flange with Flange | |
| Function | Normally Closed | - |
 2-Way : TPC1212-□□ 3-Way : TPC1312-□□ |
TPC1313-□□ |
| Normally Open | - | 2-way : TPC1222-□□ 3-way : TPC1322-□□ |
- | |
Order Code
| Symbol | Meaning of Symbol | Meaning of number and alphabetical character |
Remarks | |
|---|---|---|---|---|
| N1 | Model Series | 1 | First Generation | First Generation : DN50 to DN80 (Large valve) Second Generation : DN8 to DN40 *The way in which the cylinders and yoke-stands are fixed differs. |
| 2 | Second Generation | |||
| N2 | Number of Ports | 2 | 2-Ports (2-way) | There are two types of 2-way valves:(See section N10 below.) - One where port#3 is covered with Lower Cover. (Port#3 does not exist.) Please enter "C" at N10. - One where the Thread blind plug is screwed into Lower seat flange (at Port #3). Please enter "T" at N10. |
| 3 | 3-Ports (3-way) | |||
| N3 | Function | 1 | Normally Closed | The definitions for Normally Closed and Normally Open for 3-way valves are as below. Normally Closed: When the pilot air is OFF, the pathway between ports #2 and #3 is open. Normally Open: When the pilot air is OFF, the pathway between ports #1 and #2 is open. |
| 2 | Normally Open | |||
| N4 | Connection | 1 | Port #1, #2, #3 : Thread | |
| 2 | Port #1, #2 : Flange Port #3 : Thread |
|||
| 2 | Port #1, #2, #3 : Flange | |||
| N5 | Nominal Size | 08 | DN8, NPS1/8 | 50, 65 and 80 are large valves (first-generation) |
| 10 | DN10, NPS1/4 | |||
| 15 | DN15, NPS1/2 | |||
| 20 | DN20, NPS3/4 | |||
| 25 | DN25, NPS1 | |||
| 32 | DN32, NPS1-1/4 | |||
| 40 | DN40, NPS1-1/2 | |||
| 50 | DN50, NPS2 | |||
| 65 | DN65, NPS2-1/2 | |||
| 80 | DN80, NPS3 | |||
| N6 | End Connection Flange Type |
Nil | - | Incicates spec with flanges at body ports #1, #2, and #3. Where flanges are not used, please leave blank. |
| J | JIS 20K | |||
| A | ASME Class 300 | |||
| D | DIN PN40 | |||
| N7 | End Connection & Pilot Port Thread Type |
P | Rc |
Indicates thread spec for pilot air port and body ports #1, #2, and #3. However, with G type, this indicates the thread for the pilot air port, with the body being Rc. Pilot Air port size is 1/4 （Rc1/4, NPT1/4, G1/4) |
| N | NPT | |||
| B | G, Rc | |||
| N8 | Material of Lower seat flange or Lower cover |
Nil | Material of Lower seat flange:S25C | Material of Lower seat flange is S25C. Valve seat is overlay welded by SUS 304 material. |
| X | Material of Lower seat flange:SUS304 | Material of Lower seat flange is SUS304. | ||
| Material of Lower Cover:SUS304 | Material of Lower Cover for 2-way is SUS304 as standard. | |||
| N9 | Material of Flange | Nil | Material of Flange: S25C | Flange material is S25C |
| Y | Material of Flange: SUS304 | Flange material is SUS304 | ||
| N10 | 2-way spec. | Nil | - | Leave blank when Port is 3-way (See section N2 above) |
| C | Material of Lower Cover:SUS | Port#3 does not exist. Material of Lower Cover for 2-way is SUS304 as standard. For example：TPC2212-25JPXC |
||
| T | Port #3: Plugged | Thread blind plug is screwed into Lower seat flange (at Port #3). Plug material is as same as Lower seat flange (Standard; S25C/ X: SUS304) Please specify the material of Lower seat flange at N8 For example：TPC2212-25JPT・・・Plug material is S25C For example：TPC2212-25JPXT・・・Plug material is SUS304 |
||
| N11 | Special option | Z□□ | Special Options | Indicates special spec with special option code "Z1～" |