Hinges

Introduction

But hinges are the most commonly applied door hinge, and are available in a range of materials and construction.

A 5mm knuckle hinge has a flap with three knuckles attached to the frame and flap with two knuckles attached to the door. Similarly, a three knuckle hinge has the flap with two knuckles attached to the frame with a single knuckle flap attached to the door.

EuroArt hinges, where specified correctly to the recommendation of BS EN 1935, are capable of withstanding a severe degree of use. Most are particularly suitable for use with door closers and will help to ensure the smooth operation of the door.

BS EN 1935 Single axis hinges

BS EN 1935 classifies door furniture by using an 8 digit coding system. A similar classification applies to all building hardware product standards so that complementary items of hardware can be specified to, for instance, a common level of corrosion resistance, the category of use, etc. Each digit refers to a particular feature of the product measured against the standard's performance requirements.

1. Category of Use

Four categories of use are identified:

Grade 1:

Light duty

Grade 2:

Medium Duty

Grade 3:

Heavy duty

Grade 4:

Severe Duty

2. Durability

Three grades are identified for single-axis hinges manufactured to this European standard:

Grade 3:

10 000 test cycles, for light duty hinges on windows only

Grade 4:

25 000 test cycles, for light duty hinges on windows and doors

Grade 7:

200 000 test cycles, for medium. heavy and severe duty hinges on door only

3. Test door mass

Eight door mass grades related to single-axis hinges are identified in this European standard as shown in table 1 below.

Test door mass grade Door mass
0 10Kg
1 20Kg
2 40Kg
3 60Kg
4 80Kg
5 100Kg
6 120Kg
7 160Kg

4.Suitability for fire/smoke door use

Two grades of suitability are identified for single-axis hinges:

Grade 0:

Not suitable for fire/smoke resistant door assemblies

Grade 1:

Suitable for fire/smoke resistant door assemblies subject to satisfactory assessment of the contribution of the single-axis hinge to the fire resistance of the specified fire/smoke door assemblies. Such assessment is beyond the scope of this European standard (see EN 1634-1).

5. Safety

Single-axis hinges are required to satisfy the essential requirements of safety in use. Therefore, only grade 1 is identified.

6.Corrosion resistance

Five grades of corrosion resistance are identified in accordance with EN 1670:

Grade 0:

No defined corrosion resistance.

Grade 1:

Mild resistance

Grade 2:

Moderate resistance

Grade 3:

High resistance

Grade 4:

Very high resistance

7.Security

Two grades of security are identified for single-axis hinges:

Grade 0:

Not suitable for use on burglar-resistant door assemblies

Grade 1:

Suitable for applications requiring a degree of security. Annex C of this European standard details the hinge grade to use for the level of security required.

8. Hinge grade

Fourteen grades are identified in this European standard and are detailed below. The full classification is shown in the standard.

Hinge grade Usage Test cycles Door mass
1 Window 10 000 10kg
2 Window 10 000 20kg
3 Window/Door 25 000 20kg
4 Door 200 000 20kg
5 Window 10 000 40kg
6 Window/Door 25 000 40kg
7 Door 200 000 40kg
8 Window 10 000 60kg
9 Window/Door 25 000 60kg
10 Door 200 000 60kg
11 Door 200 000 80kg
12 Door 200 000 100kg
13 Door 200 000 120kg
14 Door 200 000 160kg

BS EN 1634 Part 1:2000

Is the European Fire Safety Standard for determining the fire resistance of door and shutter assemblies including hardware designed for installations within openings incorporated in vertical separating elements (doorsets).

Locks can be assessed to be suitable on:-

FD30 (30 minutes) Fire Doors

FD60 (60 minutes) Fire Doors

CE Marking

CE Marking is the easiest and safest route to providing compliance with the latest UK Construction Products Directive for hardware used on the fire, smoke and escape doors.