The bottoms are flat, not beaded. Main dimensions. Committee for Standardization and Metrology of the USSR

GOST 12623-78*
Group G11

STATE STANDARD OF THE UNION OF THE SSR

BOTTOM FLAT ROUGH
Main dimensions
Flat heads without knuckle. Basic dimensions

OKP 41 2140

Introduction date 1979-01-01

By the Decree of the State Committee of Standards of the Council of Ministers of the USSR dated January 30, 1978 N 292, the introduction period was set from 01.01.79

INSTEAD OF GOST 12626-67
* REPUBLICATION (October 1992) with Amendment No. 1 approved in October 1983 (IUS No. 2-84).

1. This standard applies to flat non-beaded bottoms made of carbon, alloy and two-layer steels intended for vessels and apparatuses operating under filling, and for vessels and apparatuses with a diameter of up to 500 mm also under a pressure not exceeding 1.6 MPa (16 kgf / cm).

2. The design and dimensions of the bottoms under pressure and for filling must correspond to those indicated in Fig. 1 and in Table 1.

________________
* Size for reference.

Table 1

Dimensions, mm

Weight, kg

12,82

Notes to tables 1 and 2.

1. For pipes with wall thicknesses not listed in Tables 1 and 2, the diameter and weight must be corrected for a gap of 2 mm between the casing wall and the bottom.

2. Deviation of the mass of the bottom should be within ±3%.

The design and dimensions of the bottoms, intended only for filling, must correspond to those indicated in Fig. 2 and in Table 2.

table 2

Dimensions, mm

Mass, kg

3. Bottoms made of alloy steel are allowed to be manufactured with thicknesses of 5, 7, 9, 11, 13, 15, 17, 19, 21 mm.

Example symbol bottoms with a diameter of 456 mm, thickness 8 mm:

Bottom 456-8 GOST 12623-78

The same, 2040 mm in diameter, 8 mm thick:

Bottom 2040-8 GOST 12623-78

4. The wall thicknesses of the bottoms shown in Fig. 1 must be calculated in accordance with GOST 14249-89.

5. The need to install bottom stiffeners should be determined by calculation.

6. The mass of the bottoms is calculated with a steel density of 7850 kg/m.
(Changed edition, Rev. N 1).

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GOST 12623-78

Group G11

STATE STANDARD OF THE UNION OF THE SSR

BOTTOM FLAT ROUGH

Main dimensions

Flat heads without knuckle.
Basic dimensions

Introduction date 1979-01-01

PUT INTO EFFECT by the Decree of the State Committee of Standards of the Council of Ministers of the USSR dated January 30, 1978 N 292

By the Decree of the State Standard of 10.31.83 N 5222, the validity period was extended until 01.01.89 *
____________________
* The validity period was removed by the Decree of the State Standard of the USSR of 06/03/88 N 1612 (IUS N 9, 1988). - Note.

INSTEAD OF GOST 12626-67

REPUBLICATION (December 1984) with Amendment No. 1 approved in October 1983 (IUS No. 2-84)

1. This standard applies to flat non-beaded bottoms made of carbon, alloy and two-layer steels intended for vessels and apparatuses operating under filling, and for vessels and apparatuses with a diameter of up to 500 mm also under a pressure not exceeding 1.6 MPa (16 kgf / cm).

2. The design and dimensions of the bottoms under pressure and for filling must correspond to those indicated in Fig. 1 and in Table 1.

________________
* Size for reference.

Table 1

Dimensions in mm

Weight, kg

Notes to tables 1 and 2:

1. For pipes with wall thicknesses not listed in Tables 1 and 2, the diameter and weight must be corrected for a gap of 2 mm between the casing wall and the bottom.

2. Deviation of the mass of the bottom should be within ±3%.

The design and dimensions of the bottoms, intended only for filling, must correspond to those indicated in Fig. 2 and in Table 2.

table 2

Dimensions in mm

Mass, kg

2369,0 6. The mass of the bottoms is calculated with a steel density of 7850 kg/m. (Changed edition, Rev. N 1). The text of the document is verified by: official publication The bottoms are conical and flat. Main dimensions: Sat. GOSTs. - M.: Publishing house of standards, 1985

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STATE STANDARD OF THE UNION OF THE SSR

BOTTOM FLAT ROUGH

BASIC DIMENSIONS

GOST 12623-78

USSR STANDARDIZATION AND METROLOGY COMMITTEE

Moscow

STATE STANDARD OF THE UNION OF THE SSR

BOTTOM FLAT ROUGH Main dimensions Flat heads without knuckle. Basic dimensions

GOST 12623-78* Instead GOST 12626-67

By the Decree of the State Committee for Standards of the Council of Ministers of the USSR dated January 30, 1978 No. 292, the deadline for the introduction was established

from 01.01.79

1. This standard applies to flat non-beaded bottoms made of carbon, alloy and two-layer steels intended for vessels and apparatuses operating under filling, and for vessels and apparatuses with a diameter of up to 500 mm also under a pressure not exceeding 1.6 MPa (16 kgf / cm 2).

2. The design and dimensions of the bottoms under pressure and for filling must comply with those indicated on and in.

The design and dimensions of the bottoms intended only for filling must comply with those indicated on and in.

3. Bottoms made of alloy steel are allowed to be manufactured with thicknesses of 5, 7, 9, 11, 13, 15, 17, 19, 21 mm.

___________

s* Size for reference.

5. The need to install bottom stiffeners should be determined by calculation.

6. The mass of the bottoms was calculated with a steel density of 7850 kg/m 3 .

(Revised edition, Rev. No. 1).