
Fitting
Tube Fitting Standard Series
The Tube Fitting comes in a wide variety of models to meet all your needs in pneumatic piping.
Water is admitted conditionally. (Excluding Space saving type)
Corresponding product
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HNBR or FKM is used for the seal rubber material. *Some products are only compatible in the flow path.
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No lubrication is used during assembly.
Options
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Fluorine grease is used as grease, and the product is packaged in a clean room after cleaning with clean air.
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After vacuum ultrasonic cleaning with HFE (hydro fluoro ether) in a clean room, deaeration packaging is performed.
Advantages
The Tube Fitting comes in a wide variety of models to meet all your needs in pneumatic piping.
Water is admitted conditionally.
High performance / high quality
The lock-claws grips circumference of the tube evenly.
Feeling as good as new, even after many years.
PISCO's uniquely shaped elastic sleeve shuts out air leaks.
Industry leading wide variety of models.
Various sizes of unequal union type makes it possible to handle with just one fitting, although two or more fittings are used before.
It reduces the amount of fitting used and enables cost and space saving.
Even after installation, the direction of the tubing can be changed freely.

Centralized piping is possible.
Triple type (PKD, PKG, PKJ) and Twin Triple type (PKVD, PKVG) realize compact centralized piping.

Clean-room Package, best suitable for piping in cleanroom, is available. (Optional)
Fluorine grease is applied and washed by clean air, then packed in ISO class 6 cleanroom.
Clean wash specification, best suitable for various production processes where foreign particles and oil are not welcome, is prepared. (Option for Clean-room Package specification)
Deaeration package after vacuum ultrasonic cleaning by HFE (hydrofluoroether) is carried out in the cleanroom.

Specifications
Standard
Fluid medium | Air, Water (Conditional*) |
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Max. operating pressure | 1.0MPa |
Max. vacuum | -100kPa |
Operating temp. range | 0~60℃(No freezing) |
Warnings
* Make sure to follow the instructions below when the fluid medium is water.
Surge pressure must be controlled lower than max. operating pressure when using water as a fluid medium.
Tap water in Japan free from foreign substances or contamination can be used. Carry out the evaluation under an actual operating condition for using other kind of water.
Be sure to place Insert Ring (WR) into the tube edge when using water as a fluid medium.
Space saving
Fluid medium | Air |
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Max. operating pressure | 1.0MPa |
Max. vacuum | -100kPa |
Operating temp. range | 0~60℃(No freezing) |
Port size
Tube dia.
mm size(mm) | φ4, φ6, φ8, φ10, φ12, φ16 |
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inch size | φ1/8"*, φ5/32", φ3/16", φ1/4", φ5/16", φ3/8", φ1/2", φ5/8" |
*1/8" size is applicable only to Cap, PPF type for Standard series. See Mini series for all other 1/8" size fittings.
Thread size
Metric male thread | M5x0.8, M6x1 |
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Taper pipe male thread | R1/8, R1/4, R3/8, R1/2 |
Metric female thread | M5x0.8 |
Taper pipe female thread | Rc1/8, Rc1/4, Rc3/8, Rc1/2 |
UNF thread | 10-32UNF |
NPT thread | NPT1/16, NPT1/8, NPT1/4, NPT3/8, NPT1/2 |
Construction

Type & Price list

Thread⇔Tube connecton (25 shapes)
Used for male thread, female thread, bulkhead and concentrated branching etc.

Tube ⇔Tube connection (18 shapes)
Tube diameter size reduction, bulkhead piping, and concentrated branching are also possible.

Tube ⇔ Tube Fitting connection(10 shapes)
The angle and length of the tube outlet can be adjusted, and the size of the tube diameter can be changed.

Tube Fitting ⇔Tube Fitting connectoion(2 shapes)
A tubular joint that connects joints to each other without using a tube.

Thread⇔ Tube Fitting connection (1 shape)
It can be attached to union-shaped products and used as a screw.

Thread ⇔Thread connection(2 shapes)
The size of the male screw can be changed.

Plug(2 shapes)
Block unused fittings and tubes (flow paths).
Thread & Tube connection (28 types)
Tube & Tube connection (18 types)
Tube & Fitting connection (10 types)
Fitting & Fitting connection (2 types)
Thread & Fitting connection (1 type)
Thread & Thread connection (2 types)
Plug (2 types)
Detailed Safety Instructions
Warning
1.When the fluid medium is water, do not use fittings unless the operating environment meets all the described specifications in the catalog. Otherwise, it may cause damage to the products, the escape of tubes and a fluid leakage.
Caution
1.To adjust the direction of the elbow fitting after fixing PML (Bulkhead Union Elbow) type, turn it in the clock-wise (right) direction.
2.Attach a rubber washer to the aluminum nut side when installing PML (Bulkhead Union Elbow) type. The bulkhead parts may be loosened or the rubber washer may deform if attaching it to the hexagonal side.
Inquiries about this product
It is also possible to suggest products suitable for various conditions such as applications and functions. Please feel free to contact us or visit the nearest sales office.
The following are frequently asked questions. Please check before making inquiries.