Untreated ball joint railing 

Tyle

Ball diameter

Column pipediameter

Handrailsdiameter

Knee rail pipediameter

standard

76mm(85)

economy

66mm(70)

NB

OD

Common steelpipe

Thickened steel pipe

Wall Thickness(mm)

Theoretical weight (kg/m)

Wall Thickness(mm)

Theoretical weight(kg/m)

6

2

8

10

15

20

25

4

32

4

40

50

65

4

80

4

5

100

4

5

125

4

150

6

200

6

7

7. 2.Height ofHandrail:(1) Double RailsA.Horizontal Handrail: with a minimum height of 1100ram for the handrailB. Angled Handrail: with a minimum vertical height of 900ram for handrail(2)Three Rails: generally 1200ram(3)Single rail or more than 3 rails are subject to specific design.3. Joint of Rail and Stanchion:(1)Welding is generally adopted for joints with parcel antirust treatment.(2) Bolts or pins are optional, with necessary holes to be drilled at site for installation.4. If customer reduces the height of handrail or the thickness of steel pipe, or increase the main stanchion pitch, etc. so as to save cost, our company will not be responsible for any consequence incurred.Quality Standard

Item

BasePlates

Wall Thickness

Length

Tolerances

+/-1mm

+/-0.2mm

+/-5mm

Carbon steel

Stainless steel

Aluminum

(1) untreated

(1)Sandblasting

(1)Anodized

(2) Galvanized

(2)Electropolishing

(2)Powder coated

(3) Untreated

(3)Untreated

(3)Untreated

(4) Painting