AMFM Braid Band

AMFM Braid Bands

Solid Weld Band

Braid bands, also referred to as braid sleeves or braid ferrules, are used to retain woven braided sleeve covering corrugated metal hose. The braided sleeve provides strength to the corrugated metal hose as well as protecting the hose from abrasion.  The AMFM Braid Band is integral to the process of welding together a metal hose assembly. The AMFM Braid Band retains the braid against the hose for the purpose of welding together the metal hose and braided sleeve.

The AMFM Braid Band is designed exclusively to accommodate the variable factors in hose fabrication. The AMFM Braid Band is a solid band manufactured for hose sizes 3/16” through 2” hose. Braid Band (ID) sizes are manufactured in 0.150” increments from .420” through 3”. The AMFM Braid Band is primarily manufactured from 304 Stainless Steel, with availability in 316 Stainless Steel, Copper and Monel.

The incremental sizing allows the fabricator to select the best width based on the OD of the hose and type of braided hose covering selected. OD of hose and braid can vary from manufacturer to manufacturer. The use of standard braid, double braid and or braided braid sleeve all influence which AMFM Braid Band works the best.

Standard and non-standard variants of the AMFM Braid Band are available. The AMFM Braid Band can manufactured to your specification to serve the specific need for any application.

For complete information regarding the correct methods to fabricate metal hose it is recommended that you contact your metal hose supplier or a recognized standards organization. NAHAD (The Association for Hose and Accessory Distribution) has published hose assembly guidelines and is a reference organization as well as ANSI, ASME, SAE and ISO.

AMFM Braid Bands are available with branding providing critical information about your metal hose assembly.

Pictured: AMFM Braid Bands, SS and CS TOE Nipples

Sizing Braid Bands

AMFM Braid Bands must be sized for each individual hose and braid configuration. The AMFM sizing gauge was developed exclusively for use with the braided metal hose to indicate the appropriate AMFM Braid Band needed.

Selecting the size from catalog dimensions from the hose manufacturer or measuring the hose without consulting the factory is not recommended. More than one standard size increment will fit a braided hose with nominal difference, except in smaller hose sizes (under 1”). Double braid hoses generally require the equivalent increase of approximately three standard sizes over the single braid size.

AMFM Braid Bands offer consistent sizing, and in some instances can exceed that of the hose. This may require alternate bands when a very tight fit is used that leaves no ability to consume a minor increase in hose diameter.

When it comes to determining fit size, there are two methods of specification: AMFM Standard Specification or Customer Part Number Control where braid band sizing can be specified by customer requirements or specifications.

Braid Band Tolerance and Variance

Out of Round

Specific tolerances are established for each series of braid bands.  These standards are set to ensure each braid band is manufactured to the exact fit size.  This ensures that each braid band fits properly on your hose. Out of round tolerance varies by series and is qualified at time of manufacture.

Edge Protrusion (Burr)

Edge protrusion refers to general edge condition. Options include single point protrusion or burr, with specification maximum of .0075” and .005”, respectively. All edges are burr-free and square.

Edge Variation (Parallel and Square)

Edge is the measurement of the band, perpendicular to ID. Part edge variations can deviate in parallel or part square. Variations can involve a single edge or both. Specification calls for a maximum “gap distance” when measuring with reference to ID surface and corresponding perpendicular edge. Gap specifications vary from .010” to .040” depending on part size and material.


Specifications & Sizing


AMFM Braid Band Widths & Wall

SeriesMABCDEFFXGH
Band Width
304/316, Monel0.3750.500.6250.6250.750.750.750.750.750.75
Copper0.3750.500.6250.6250.751.00
Band Wall
304/3160.0350.0490.0490.0490.0490.0490.0490.0490.0650.065
Monel0.0480.0370.0370.0650.065
Copper0.0490.0490.0490.0550.0550.055

AMFM Braid Band ID and Material Type

AMFMFit SizeSS (304)ST(316)CopperMonel
M-10.405x
M-20.420x
M-30.435x
M-40.450x
M-50.465x
M-60.480x
M-70.495x
M-80.510x
M-90.525xx
M-100.540xx
M-110.555xx
M-120.570xxx
M-130.585xxx
M-140.600xxx
M-150.615xx
M-160.630xx
M-170.645xx
A-180.660xxxx
A-190.675xxxx
A-200.690xxxx
A-210.705xxxx
A-220.720xxxx
A-230.735xxxx
A-240.750xxxx
A-250.765xxxx
A-260.780xxxx
A-270.795xxxx
A-280.810xxxx
A-290.825xxxx
A-300.840xxxx
A-310.855xxxx
B-320.870xxxx
B-330.885xxxx
B-340.900xxxx
B-350.915xxxx
B-360.930xxxx
B-370.945xxxx
B-380.960xxxx
B-390.975xxxx
B-400.990xxxx
C-411.005xxxx
C-421.020xxxx
C-431.035xxxx
C-441.050xxxx
C-451.065xxxx
C-461.080xxxx
C-471.095xxxx
C-481.110xxxx
C-491.125xxxx
C-501.140xxxx
C-511.155xxxx
C-521.170xxxx
C-531.185xxxx
C-541.200xxxx
C-551.215xxx
C-561.230xxx
D-571.245xx
D-581.260xxx
D-591.275xxx
D-601.290xxx
D-611.305xxx
D-621.320xxx
D-631.335xxx
D-641.350xxx
D-651.365xxx
D-661.380xxx
D-671.395xxx
D-681.410xxx
D-691.425xxx
D-701.440xxx
D-711.455xxx
D-721.470xxx
D-731.485xxx
E-741.500xxx
E-751.515xxxx
E-761.530xxxx
E-771.545xxxx
E-781.560xxxx
E-791.575xxxx
E-801.590xxxx
E-811.605xxxx
E-821.620xxxx
E-831.635xxxx
E-841.650xxxx
E-851.665xxxx
E-861.680xxxx
E-871.695xxxx
E-881.710xxxx
E-891.725xxxx
E-901.740xxxx
E-911.755xx
E-921.770xx
E-931.785xx
E-941.800xx
E-951.815xx
E-961.830xxx
F-971.845xxx
F-981.860xxxx
F-991.875xxxx
F-1001.890xxxx
F-1011.905xxxx
F-1021.920xxxx
F-1031.935xxxx
F-1041.950xxxx
F-1051.965xxxx
F-1061.980xxxx
F-1071.995xxxx
F-1082.010xxxx
F-1092.025xxxx
F-1102.040xxxx
F-1112.055xxxx
F-1122.070xxxx
F-1132.085xxx
F-1142.100xxx
F-1152.115xxx
F-1162.130xxx
F-1172.145xxx
F-1182.160xxx
F-1192.175xxx
F-1202.190xxx
F-1212.205xxx
F-1222.220xxx
F-1232.235xxx
F-1242.250xxx
F-1252.265xxx
F-1262.280xxx
F-1272.295xxx
F-1282.310xxx
F-1292.325xxx
F-1302.340xxx
F-1312.355xxx
FX-1322.370xxx
FX-1332.385xx
FX-1342.400xx
FX-1352.415xx
FX-1362.430xx
FX-1372.445xx
FX-1382.460xx
FX-1392.475xx
FX-1402.490xx
FX-1412.505xx
FX-1422.520xx
FX-1432.535xx
FX-1442.550xx
FX-1452.565xx
FX-1462.580xx
FX-1472.595xx
FX-148a2.610xx
FX-148b2.625xx
FX-148c2.640xx
FX-148d2.655xx
FX-148e2.670xx
FX-149a2.685xx
FX-149b2.700xx
FX-149c2.715xx
FX-149d2.730xx
FX-149e2.745xx
G-1502.750xx
G-1512.765xx
G-1522.780xx
G-1532.795xx
G-1542.810xx
G-1552.825xx
G-1562.840xx
G-1572.855xx
G-1582.870xx
G-1592.885xx
H-1602.900xxx
H-1612.915xxx
H-1622.930xxx
H-1632.945xxx
H-1642.960xxx
H-1652.975xxx
H-1662.990xxx
H-1673.005xxx