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OETIKER 155 Series Stainless 1 Ear Clamps With Mechanical Interlock


Hoses are widely used for connecting HVAC and fluid transfer equipment. Hose clamps are ideal for securing hoses over a fitting, to prevent fluid leakage at the joints. These mechanical attachments exert equal pressure around the hose to keep them attached to a hose nipple, barb or tube. Oetiker manufactures a diverse range of assembly & disassembly tools, as well as connecting equipment like clamps, rings & quick connectors. The brand is dedicated to delivering reliable performance of vehicles, beverage dispensing systems & HVAC units....Read more

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Band Material: Stainless Steel | Material: Stainless Steel, Material no. 1.4301/UNS S30400
StyleModelSize RangeBand WidthSize ReferenceEar WidthPack SizePrice
A
15500070
8.3 mm - 10.1 mm0.27"101 mm-100-
RFQ
A
15500000
8.9 mm to 10.5 mm0.27"105 mm5 mm100€0.32
A
15500001
9.7 mm to 11.3 mm0.27"113 mm5 mm100€0.32
A
15500002
10.4 mm to 12.3 mm0.27"123 mm6 mm100€0.33
A
15500003
11.4 mm to 13.3 mm0.27"133 mm6 mm100€1.24
A
15500006
11.9 mm to 14 mm0.27"140 mm6.5 mm100€0.34
A
15500007
12.6 mm to 14.5 mm0.27"145 mm6 mm100€1.24
A
15500071
12.6 mm to 15.2 mm0.27"152 mm-100€0.35
A
15500008
13.8 mm to 15.7 mm0.27"157 mm7 mm100€1.24
A
15500072
13.9 mm to 16.5 mm0.27"165 mm-100€0.36
A
15500009
15.1 mm to 17 mm0.27"170 mm6 mm100€0.36
A
15500010
15.7 mm to 18.5 mm0.27"185 mm9 mm100€1.26
A
15500011
17 mm to 19.8 mm0.27"198 mm9 mm100€1.26
A
15500012
18.2 mm to 21 mm0.27"210 mm9 mm100€1.26
A
15500013
19.8 mm to 22.6 mm0.27"226 mm9 mm100€0.40
A
15500014
21.3 mm to 24.1 mm0.27"241 mm9 mm100€1.98
A
15500015
22.8 mm to 25.6 mm0.27"256 mm9 mm100€0.90
A
15500016
24 mm to 27.1 mm0.27"271 mm10 mm100€1.26
A
15500017
25.5 mm to 28.6 mm0.27"286 mm10 mm100€1.26
A
15500018
27 mm to 30.1 mm0.27"301 mm10 mm100€0.44
A
15500019
28.5 mm to 31.6 mm0.27"316 mm10 mm100€1.26
A
15500020
30 mm to 33.1 mm0.27"331 mm10 mm100€1.26
A
15500021
31.5 mm to 34.6 mm0.27"346 mm10 mm100€1.26
A
15500022
33 mm to 36.1 mm0.27"361 mm10 mm100€2.90
A
15500023
34.5 mm to 37.6 mm0.27"376 mm10 mm100€0.49
A
15500024
35 mm to 38.1 mm0.27"381 mm10 mm100€0.50
A
15500025
36.5 mm to 39.6 mm0.27"396 mm10 mm100€0.52
A
15500026
37.9 mm to 41 mm0.27"410 mm10 mm100€0.52
A
15500027
39.4 mm to 42.5 mm0.27"425 mm10 mm100€0.54
A
15500028
40.9 mm to 44 mm0.27"440 mm10 mm100€3.16
A
15500029
42.4 mm to 45.4 mm0.27"455 mm10 mm100€0.56
A
15500030
43.9 mm to 47 mm0.27"470 mm10 mm100€0.57
A
15500031
45.4 mm to 48.5 mm0.27"485 mm10 mm100€0.57
A
15500032
46.9 mm to 50 mm0.27"500 mm10 mm100€0.58
A
15500033
48.4 mm to 51.5 mm0.27"515 mm10 mm100€0.59
A
15500034
49.9 mm to 53 mm0.27"530 mm10 mm100€0.60
A
15500035
51.4 mm to 54.5 mm0.27"545 mm10 mm100€0.61
A
15500036
52.9 mm to 56 mm0.27"560 mm10 mm100€0.62
A
15500037
54.4 mm to 57.5 mm0.27"575 mm10 mm100€0.63
A
15500038
55.9 mm to 59 mm0.27"590 mm10 mm100€0.64
A
15500039
57.4 mm to 60.5 mm0.27"605 mm10 mm100€0.65
A
15500040
58.9 mm to 62 mm0.27"620 mm10 mm100€0.66
A
15500041
60.4 mm to 63.5 mm0.27"635 mm10 mm100€0.67
A
15500042
61.9 mm to 65 mm0.27"650 mm10 mm100€0.68
A
15500043
63.4 mm to 66.5 mm0.27"665 mm10 mm100€0.68
A
15500044
64.9 mm to 68 mm0.27"680 mm10 mm100€0.70
A
15500045
66.4 mm to 69.5 mm0.27"695 mm10 mm100€0.70
A
15500046
67.9 mm to 71 mm0.27"710 mm10 mm100€1.32
A
15500047
69.4 mm to 72.5 mm0.27"725 mm10 mm100€0.73
A
15500048
70.9 mm to 74 mm0.27"740 mm10 mm100€0.74
A
15500049
72.4 mm to 75.5 mm0.27"755 mm10 mm100€0.75
A
15500050
73.9 mm to 77 mm0.27"770 mm10 mm100€0.76
A
15500051
75.4 mm to 78.5 mm0.27"785 mm10 mm100€0.76
A
15500052
76.9 mm to 80 mm0.27"800 mm10 mm100€0.77
A
15500053
78.4 mm to 81.5 mm0.27"815 mm10 mm100€0.78
A
15500054
79.9 mm to 83 mm0.27"830 mm10 mm100€0.80
A
15500055
81.4 mm to 84.5 mm0.27"845 mm10 mm100€0.82
A
15500056
82.9 mm to 86 mm0.27"860 mm10 mm100€0.82
A
15500057
84.4 mm to 87.5 mm0.27"875 mm10 mm100€0.84
A
15500058
85.9 mm to 89 mm0.27"890 mm10 mm100€0.86
A
15500059
87.4 mm to 90.5 mm0.27"905 mm10 mm100€0.88

155 Series Stainless 1 Ear Clamps With Mechanical Interlock

Oetiker ear clamps are designed to provide dependable and semi-permanent clamping of hoses in the petrochemical, hydraulic & automotive industries. These ear clamps are ideal for use in cross linked polyethene (PEX) tubing & water supply piping systems. They feature visible deformation to provide indication of proper closure and a dimple to deliver maximum clamping force. They are available in variants having single or double ears. Users should choose a single ear clamp if they want to achieve uniform compression around the hose / tube, and a double ear variant for extended clamping range, when dealing with materials that are vulnerable to thermal expansion or contraction.
Oetiker 155 Series ear clamps are equipped with a single ear for quick installation & clamping. They are made of stainless steel, chromium & nickel for structural strength, corrosion resistance & durability. These 155 Series ear clamps are integrated with a mechanical interlock for securely closing the clamps and preventing corrosion associated with spot welding closure of the clamps. They have specially formed, burr free strip edges with 7 mm band width & 0.6 mm thickness to reduce damage to the hoses being clamped. Raptor Supplies offers these Oetiker stainless steel clamps in clamping width range of 8.9 to 99.5 inches. We also supply these ear clamps in galvanised steel construction for mild corrosion resistance & ductility.

Uses

Oetiker 155 Series stainless steel single ear clamps are suitable for clamping hoses for leak proof operation in agricultural, heating, automobile & cooling applications. These clamps prevent the disconnection of hoses on applying high clamping pressure, without damaging the hoses.

Working Mechanism

Oetiker 155 Series stainless steel ear clamps are placed over a hose and closed using a mechanical interlock. These clamps are crimped across their ear width by drawing together their lower radius using a constant force pincer. The decrease in open ear width results in reduction of clamp diameter and hence, leads to tightening of the applied clamp around a hose.

Features

  • Oetiker 155 Series ear clamps are used to hold hoses & tubing tightly over attachments for leak proof operation.
  • They have stainless steel construction for corrosion resistance and structural rigidity.
  • These ear clamps are integrated with a mechanical interlock to keep them closed over a hose.
  • They have a single ear for exerting uniform compression around the hose surface.
  • These clamps have burr free strip edges and 7 mm band width for reducing damage to the clamped hoses.
  • They have a one piece design without any movable parts, for tamper proof operation & reducing part failure.
  • Their ear shaped design provides visible confirmation of proper closure.
  • They are 0.6 mm thick and have ears of internal widths ranging from 5 to 10 mm.

Compatible Accessories

  • HMK 01 / S01: These manual pliers have a straight clamping jaw (HMK 01) for standard operation or a side clamping jaw (HMK S01) for operation in small spaces.
  • HO 2000 ME: These pneumatic pincer systems allow uniform installation of Oetiker 155 Series single ear clamps. These pincers provide optimum closing force for crimping clamp ears & tightening the clamp around a hose.
  • CP 01: These cordless clamp pincers have a lightweight & ergonomic design for free motion during clamp assembly. They offer unrestricted operation at any location.

Standards and Approvals

Oetiker 155 Series ear clamps are manufactured in compliance with DIN EN ISO 9227 international standards for ensuring corrosion resistance & durability. They have AISI 304 (1.4301) & UNS S30400 certified chromium-nickel stainless steel construction for corrosion resistance, formability and weldability. Oetiker hose clamps & accessories meet the requirement of standards like IATF 16949:2016 and ISO 9001:2015 for ensuring environmental health and defect free, superior performance of the clamps.

Installation

  • Measure the outer diameter of the hose fitted to an attaching material (nipple). Choose a clamp with an average diameter range slightly below the value of the hose's outer diameter.
  • Place the clamp manually over the clamping location on the hose and securely close / lock it using the mechanical interlock.
  • Use a constant force tool jaw or pincer to crimp across the clamp ear width & reduce clamp diameter for perfect sealing.
  • Users should only apply a single tool stroke for closing the clamps in one go. They should not apply secondary crimping force, in order to prevent damage to the clamps.
  • Application of constant force when closing the clamps compensates for component tolerance variations and ensures constant radial force on the applied surfaces.
  • Users can use tools like side, rotating or bowl nose cutters for removing the clamp without damaging the hose or other connecting apparatus.

Frequently Asked Questions

Are other variants of Oetiker 155 Series ear clamps available on Raptor Supplies?

Raptor Supplies offers these ear clamps in variants having two clamp ears for maximum clamping force while adjusting to thermal expansion / contraction. We also offer these ear clamps in galvanised steel variants (105 Series clamps) for mild corrosion resistance & ductility.

What is the significance of burr free strip edges?

Oetiker 155 Series ear clamps have burr free strip edges for complete protection of clamped parts against scarring or mechanical damage due to high clamping pressure.

How can users select the right ear clamp for their needs?

  • Application: Single ear clamps are used in thermally stable environments where the hose & clamp diameter remain constant. Double ear clamps are ideal for environments where the hose diameter can fluctuate (increase or decrease) due to temperature change.
  • Construction: Ear clamps are available in variants having galvanised or stainless steel construction. Zinc plated steel ear clamps have slightly lesser resistance to corrosion than stainless steel ear clamps.
  • Outside diameter: Select a clamp that has the hose diameter in the middle of the clamping range.

What types of clamps does Oetikar offer?

Oetiker offers a wide range of hose clamps like screw, ear, spring, wire, worm gear and plastic clamps.

How to properly position a hose clamp?

Hose clamps come in diverse shapes, styles & sizes. However, the majority of them follow the same process for proper fitting on a hose and tube / pipe fitting. Once the hose is pressed securely onto the mating part, the hose clamp is positioned toward the end of the hose, with approximately 1/4 inch space between the clamp and the end of the hose.

How can users remove an Oetiker clamp?

Customers can use tools such as a side or bowl nose cutter to remove clamps from hoses. It is not recommended to use rotating cutters as they can cause damage to the hose while cutting the clamp.

Can Oetiker clamps be reused after removal?

Selected models of Oetiker clamps, like low profile, universal & screw clamps, can be reused after removing them from hoses that do not require clamping.

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