How to Identify Fluid Ports and Connectors Powering Business Woridwide

Accurate identification of ports and connectors in fluid piping systems is necessary before the correct hose or tube assembly can be selected and installed. With this booklet and a few simple tools, measurement and identification is easy. Most connectors commonly used in fluid piping systems are included in this booklet. The connections are listed under headings divided by the country of origin to provide further assistance in identification. Please consult your Eaton representative for assistance in identifying connectors not found in this booklet. How to Use This Booklet Visually identify the...

How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

Measuring Tools A seat angle gauge, thread pitch gauge and an I.D./ O.D. caliper are necessary to make accurate measurements of commonly used connectors. Eaton offers a unique caliper that offers the capabilities of both a caliper and a seat angle gauge in one unit. I.D./O.D. Angle Gauge Caliper Thread Pitch Gauge How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

How to Measure Threads Use a thread pitch gauge to determine the number of threads per inch or the distance between threads in metric connections. Place the gauge on the threads until the fit is snug. Match the measurement to the charts. Measure the thread diameter with an I.D./ O.D. caliper as shown. Match the measurements to the charts. How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

How to Measure Sealing Surface Angles Female connections are usually measured by insert­ng the gauge i into the connection and placing it on the sealing surface. If the centerlines of the connection and gauge are paral­el, the l correct angle has been determined. Male flare type connectors are usually measured by placing the gauge on the sealing surface. If the centerlines of the connection and gauge are parallel, the correct angle has been determined. How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

American Connections NPTF (National Pipe Tapered Fuel) This connection is still widely used in fluid power systems, even though it is not recommended by the National Fluid Power Association (N.F.P.A.) for use in hydraulic applications. The thread is tapered and the seal takes place by deformation of the threads. Tapered Thread O.D. NPTF Threads Measure thread diameter and subtract 1⁄4-inch to find the nominal pipe size. Nominal Male Thread Thread Size O.D. (in) Inch Size Dash Size How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

American Connections NPSM (National Pipe Straight Mechanical) This connection is sometimes used in fluid power systems. The female half has a straight thread and an inverted 30° seat. The male half of the connection has a straight thread and a 30° internal chamfer. The seal takes place by compression of the 30° seat on the chamfer. The threads hold the connection mechanically. Note: A properly chamfered NPTF male will also seal with the NPSM female. Nominal Male Thread Thread Size O.D. (in) Inch Size Dash Size How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

American Connections SAE J1926 Straight Thread O-Ring Boss (ORB) This port connection is recommended by the N.F.P.A. for optimum leakage control in medium and high pressure hydraulic systems. The male connector has a straight thread and an O-Ring. The female port has a straight thread, a machined surface (minimum spotface) and a chamfer to accept the O-Ring. The seal takes place by compressing the O-Ring into the chamfer. The threads hold the connection mechanically. Inch Size Dash Size How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

American Connections This connection is very common in fluid power sys- tems. Both the male and female halves of the con- nections have 37° seats. The seal takes place by establishing a line of contact between the male flare and the female cone seat. The threads hold the con- nection mechanically. Caution: In the -02, -03, -04, -05, -08 and-10 sizes, the threads of the SAE 37° flare and SAE 45° flare are the same. However, the sealing surface angles are not the same. Male Half Female Half How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013 11

American Connections SAE J514 JIC Hydraulic (cont.) Inch Size Dash Size How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

American Connections SAE J512 45° This connection is commonly used in refrigeration, automotive and truck piping systems. The connector is frequently made of brass. Both the male and female connectors have 45° seats. The seal takes place between the male flare and the female cone seat. The threads hold the connection mechanically. Caution: In the -02, -03, -04, -05, -08 and -10 sizes, the threads of the SAE 37° flare and SAE 45° flare are the same. However, the sealing surface angles are not the same. Inch Size Dash Size How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

American Connections Ermeto® Flareless Tube Fittings SAE J514 The male Ermeto connection has straight threads and a 24° seat. The female Ermeto connections incorporates a bite-type sleeve used in conjunction with a tube and female nut. When the female nut is tightened the seal is made between the sleeve and the 24° seat. A seal is also made between the sleeve and the tubing. The threads retain the connection. How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013

American Connections SAE J1453 O-Ring Face Seal This connection offers the very best leakage control available today. The male connector has a straight thread and an O-Ring in the face. The female has a straight thread and a machined flat face. The seal takes place by compressing the O-Ring onto the flat face of the female, similar to the split flange type fitting. The threads hold the connection mechanically. Inch Size Dash Size How to Identify Fluid Ports and Connectors E-SROV-TS009-E1 March 2013