GN 20 Leveling Feet Stainless Steel, Hygienic Design, with Mounting Holes

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Hygienic-Design

Product Family Hygienic Design

Standard Parts of the “Hygienic Design” product family are labeled with the HD icon. They combine high surface quality, freedom from dead spaces, non-scooped outer surfaces, and sealed bolting areas. A sealing concept based on FEM calculations ensures reliable contact pressure after installation.

  • suitable for use in hygienically sensitive areas
  • quick and easy cleaning
  • no dead spaces due to functional seals
  • certified according to EHEDG guidelines
Show all Hygienic Design products
Stainless-Steel

Product Family Stainless Steel

Standard parts made of rustproof stainless steel have been designed for use in the food sector, in the chemical industry, for aggressive ambient conditions or for outdoor use.

  • corrosion-resistant
  • precise fit
  • environmentally friendly
Show all Stainless Steel products

FDA

The FOOD AND DRUG ADMINISTRATION is a federal agency of the United States Department of Health and Human Services, one of the United States’ executive departments. The FDA is responsible for many things including food safety. The FDA has a positive list of substances that are allowed to come into contact with foods and beverages.

Product description

Information

GN 20 leveling feet with mounting holes are certified according to EHEDG guidelines, 3-A Sanitary Standards, Inc. guidelines and DGUV Test and are intended for use in hygienic areas.

The bottom seal protects the area beneath the base from dirt. For this, the foot must be screwed dowon using the mounting holes and compressed accordingly. Hygienic fasteners such as GN 1580 screws and nuts, and the correct position of the mounting bores in the mating surface are essential for a properly sealed foot to surface installation. The sealing ring above the adjustment sleeve enables mounting without dead space. Due to the wiper or the ball sealing, the movable components are sealed against the environment.

The high surface quality prevents dirt from adhering and facilitates cleaning.

The values for static load capacity listed in the table refer to a purely vertical load to the leveling foot. Under normal operating conditions, bending loads or angular loads are not uncommon and result in a reduction of load capacity, which must be taken into consideration.

Specification

Threaded stud, adjustable sleeve, base
Stainless steel AISI 304
Turned

Seals
Blue, FDA compliant
  • Sealing ring
    NBR, hardness 70 ±5 shore A
  • Wiper
    TPU, hardness 95 ±5 shore A
  • Joint sealing ring
    H-NBR, hardness 85 ±5 shore A
  • Bottom seal
    Silicone, hardness 85 ±5 shore A










RoHS compliant

Accessory

Protective end caps GN 20.1
Hex head screws GN 1580
Hex head screws GN 1581

Technical drawing

3D
Hide technical drawing
GN 20 Stainless Steel Leveling Feet, Hygienic Design, with Mounting Holes sketch

Part Options / Table

Type

BWith mounting holes
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Metric

Dimensions in: Inch | Metric
d1d2
Thread
l1d3d4l2l3kA/F1A/F2Static load
(See information)
3.15M 126.898.860.980.370.551.382.190.670.753597 lbf (16 kN)
3.15M 166.898.861.100.370.751.382.190.710.876744 lbf (30 kN)
3.15M 207.289.251.260.370.941.382.190.941.0610566 lbf (47 kN)
3.15M 247.289.251.420.371.141.382.190.941.1815062 lbf (67 kN)
3.94M 166.898.861.100.470.751.382.720.710.876744 lbf (30 kN)
3.94M 207.289.251.260.470.941.382.720.941.0610566 lbf (47 kN)
3.94M 247.289.251.420.471.141.382.720.941.1815062 lbf (67 kN)
4.72M 166.898.861.100.470.751.383.500.710.876744 lbf (30 kN)
4.72M 207.289.251.260.470.941.383.500.941.0610566 lbf (47 kN)
4.72M 247.289.251.420.471.141.383.500.941.1815062 lbf (67 kN)

Build & Price

3D Product Configurator
Foot diameter d1
Thread d2
Length l1
Type

Mounting Example

Drawing Mounting example GN 20

Design Principles of Hygienic Design

EHEDG
- European Hygienic Engineering & Design Group
- European, nonprofit consortium of machine and food manufacturers and their suppliers, research institutes, universities and governmental health agencies
- Approximately 45 guidelines
- Testing of products and issuing of certificates

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3-A Sanitary Standard, Inc.
- Nonprofit and independent organization in the USA
- Three interest groups:
Public and governmental health agencies, machine and food manufacturers
- Over 70 Sanitary Standards
- Testing of designs and processes, issuing of certificates

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Seals

For parts that are designed in Hygienic Design, seals have the central function of protecting dead spaces, gaps and cracks from penetration of cleaning fluids or product residues.

This requires a defined pre-tension / pressure of the seals and wipers for a reliable and permanent seal when installed. Within the Hygienic Design range, seal installation spaces and seal cross sections are therefore calculated and designed using simulation software in such a way that the necessary surface pressure is achieved during installation and at the same time, the seal material is not overstressed.

A fundamental differentiation can be made between static and movable seals:

The static seals shown in the application example below (at the top towards the mounting surface (sealing ring) and at the bottom towards the installation surface (bottom seal)) are tightened during installation. It should be ensured that all surfaces in contact with the seals have a surface quality of at least
Ra 0.8 µm.

The movable seals on the adjustable sleeve (wiper) and on the ball joint (joint sealing ring) of the foot are designed in such a way that they allow an adjustment in height and angle. Also with these, the installation space together with the seal cross section ensures a gap-free, pre-tensioned seal.

Depending on the version and application, it may be necessary to replace the seals in case of damage or for preventative maintenance. For this purpose, JW Winco offers the respecitve seals separately as a standard part under Sealing Rings GN 7600 for spare part requirements.

Application Example

The design shown below of a GN 20 leveling foot in Hygienic Design illustrates how the different seal arrangements can be configured.

Drawing Application example GN 20

Selected Part

Total US Dollars (net)
$194.35
In Stock: 42
In Stock
Please note our quantity discounts (US Dollars).
MinMaxPrice
19$194.35
1024$178.16
2549$161.96
≥ 50$145.76
Prop 65: Not compliant
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
RoHS: Compliant
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Weight: 0.403 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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