Purge adapter In-Line Purge Adapter PAD-6FMSTEELNBR, steel - Nitto Kohki 599865105

After parting, air stays trapped under pressure in the hose line and escapes at once at the next handling step. The PAD in-line purge adapter is built into the line and brings that residual pressure down in a controlled way.

• Built directly into the line, so the adapter works where the residual air is trapped
• Residual pressure is released gradually instead of at once, removing the discharge noise and the hose whip
• Steel body keeps its shape as a permanently installed line component
• Seal in nitrile rubber (NBR), the standard material for compressed air lines
• Three sizes from PAD-4 to PAD-8 to match the bore of the line already in place

Technical data from the manufacturer catalogue

Dimensions

Dimensions in millimetres. Values in brackets apply in the connected condition.

Legend: D = socket outside diameter; B = bore

Models in this series In-Line PURGE ADAPTER

Every model of the series as printed in the manufacturer catalogue. The row of the article offered here is highlighted.

Operating principle

• Can be attached to hydraulic lines to purge residual pressure effectively.
• Can be operated with a screwdriver if the button is stiff. Insert an ordinary flat head screwdriver into the groove in the valve holder and press the button by leverage.
• Residual pressure is purged through a drain outlet port by pushing the residual pressure purge button.
• PAD-2 comes with a tube fitting included; PAD-FM types are supplied without tube fittings.
• FLOW METER: graduated scale shows the coolant flow rate numerically, thus reducing operator variation in setting cooling conditions.
• FLOW METER: although small, it has a built-in flow rate adjustment valve, allowing the molding conditions of each machine to be set freely.
• FLOW METER: molding conditions are reproducible and lead time can be shortened.
• FLOW METER: installation and replacement is easy since the screw part of the T2 side rotates freely to the left and right.

Series comparison

Use the In-Line PURGE ADAPTER when residual pressure has to be released from a hydraulic line at up to 35.0 MPa {357 kgf/cm2} before the coupling is separated, since it is fitted into the line itself and does not replace the coupling. The purging peer series in this category, PURGE HI CUPLA at 1.5 MPa {15 kgf/cm2} and PURGE LINE CUPLA at 1.0 MPa {10 kgf/cm2}, are couplings for the low pressure range and do not reach this pressure level. Where the line only has to be connected and shut off, the one-way shut-off peers such as HI CUPLA BL, NUT CUPLA or LOCK CUPLA 200, or the two-way shut-off COMPACT ZEROSPILL CUPLA, are the appropriate choice.

Body and seal materials

Applications

• Air lines with long hose sections that hold a large volume of residual air
• Workstations where tools are changed on a cycle and the line is parted each time
• Areas with noise limits where the discharge on disconnection is noticeable
• Retrofitting into existing lines without changing the couplings at the ends

Safety and application notes

• When ordering, please indicate Model Name or part number.
• Semi standard items: as these items are not always in stock, delivery time is subject to confirmation.
• Not suitable for vacuum application.
• The operable temperature range depends on the operating conditions.
• FLOW METER: plastic part (scale tube) cannot be replaced.
• FLOW METER: fluid must flow in the direction of the arrows.

All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 168. The complete catalogue is available for download on this page.