This standard specifies the type, size and performance parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of gray cast iron column wing radiators. This standard applies to gray cast iron column wing radiators with hot water steam as the heat medium in industrial and civil buildings. JG/T 3047-1998 Heating Radiator Gray Cast Iron Column Wing Radiator JG/T3047-1998 Standard Download Decompression Password: www.bzxz.net

Engineering Construction Standard Full Text Information System
Construction Industry Standard of the People's Republic of China JG/T3047-1998
Heating radiator
Heating radiator
Published on 1998-07-13
Gray cast iron column wing radiator
Castiron Column-wing-typeradiatorConstruction Standard
1999-02-01Implementation
The Ministry of Construction of the People's Republic of China has issued
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JG/T3047—1998
Reference Standard
Type, Dimension and Performance Parameters·
Technical Requirements
Engineering Construction Standard Full Text Information System
JG/T3047—1998
This standard is compiled based on the research and analysis of relevant enterprise standards in Shandong Province and Beijing on the basis of relevant product surveys in Beijing, Shandong, Hebei, Henan and other places.
This standard is proposed by the Standard and Quota Research Institute of the Ministry of Construction. This standard is under the jurisdiction of the National Technical Committee for Standardization of HVAC and Purification Equipment. This standard is drafted by the Heating Radiator Committee of the China Building Metal Structure Association and the Shandong Provincial Architectural Design Institute. The main drafters of this standard are Hu Bijun and Mou Lingquan. This standard is entrusted to the Heating Radiator Committee of the China Building Metal Structure Association for interpretation. ,bzsoso,Cogong Engineering Construction Standard Full Text Information System
People's Republic of China Construction Industry Standard Heating Radiator
Gray Cast Iron Column Wing Type Radiator
Heating Radiator-Castiron Column Wing Type Radiator Scope
JG/T3047—1998
This standard specifies the type, size and performance parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of gray cast iron column wing type radiators.
This standard applies to gray cast iron column wing type radiators (hereinafter referred to as radiators) in industrial and civil buildings with hot water and steam as heat medium. When the heat medium is hot water, the temperature is lower than 130℃, the gray cast iron material is not lower than HT100, and the working pressure is 0.5MPa; when the temperature is lower than 150℃, the material is not lower than HT150, and the working pressure is 0.8MPa. When the heat medium is steam, the working pressure is .2MPa. 2 Reference standards The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T321—1980
Preferred numbers and priority number systems
GB/T1048—1990
Nominal pressure of piping components
GB/T11841980Tolerances of shape and position
GB/T1804—1992
GB/T2828—1987
GB/T6414—1986
GB/T7307—1987
GB/T94391988
Full provisions
General specifications Unindicated tolerances for linear dimensions
Batch-by-batch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches) Casting size tolerances
Non-threaded pipe threads
Gray cast iron parts
GB/T11351
—1989
GB/T13754—1992
Tolerances on casting weight
Method for determining the heat dissipation of heating radiators
JB/T7945—1995
5 Test methods for mechanical properties of gray cast iron (formerly GB977—84)JG J 30. 1—1986
JGJ31-1986
Grey cast iron column radiator
Heating radiator series parameters, threads and accessories 3 Types, dimensions and performance parameters
3.1 Main parameters
The radiator takes the center distance of the inlet and outlet on the same side as the series main parameters, and its type and size should comply with the requirements of Figure 1 and Table 1. Approved by the Ministry of Construction of the People's Republic of China on July 13, 1998 and implemented on February 1, 1999
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TZY1-B/3-5(8)
TZY1-B/5-5(8)
TZY1-B/6-5(8)
TZY1-B/9-5(8)
TZY2-B/3-5(8)
TZY2-B/5-5(8)
TZY2-B/6-5(8)
TZY2-B/9-5(8)
Schematic diagram of column-wing type radiator
Table 1 Dimensions of column-wing type radiator|| tt||Middle piece height H
≤400
≤700
≤400
≤600
≤700
ZY0-0/0-0
Foot piece height H2
≤480
≤680
≤1080
≤480
≤780
Working pressure (MPa)
Center distance of inlet and outlet on the same side
Radiator width
Column wing
Gray cast iron
Model example
TZY2-1.2/6-5(8)
0.5MPa or 0.8MPa).
Length L
Width B
Center distance between inlet and outlet on the same side H1
Gray cast iron double-column wing-shaped radiator has a width of 120mm, center distance between inlet and outlet on the same side is 600mm, working pressure bzsosO,com Engineering Construction Standard Full-text Information System
The performance parameters of the radiator shall comply with the provisions of Table 2. Table 2 Performance parameters of column-wing type radiator
Working pressure
TZY1-B/3-5(8)
TZY1-B/5-5(8)
TZY1-B/6-5(8)
TZY1-B/9-5(8)
TZY2-B/3-5(8)
TZY2-B/5-5(8)
TY2-B/6-5(8)
T2-B/9-5(8)||t t||Heat dissipation area
m2/piece
0.17/0.176
0.26/0.27
0.31/0.32
0.57/0.59
0.18/0.19
0.28/0.29
0.33/0.34
0.62/0.64
Note: The heat dissipation area in the table is related to the radiator width B, B is 100 or 120mm. Technical requirements
The radiator shall be manufactured according to the approved drawings and technical documents and shall comply with the provisions of this standard. The radiator material shall comply with the provisions of GB/T9439, and the grades shall not be lower than HT100 and HT150 respectively. The heat dissipation of the radiator shall comply with the provisions of Table 3. Heat dissipation of column-wing type radiator
Heat dissipation of each piece (heat medium is hot water△T=64.5℃)Qualified products
TZY1-B/3-5(8)
TZY1-B/5-5(8)
TZY1-B/6-5(8)
TZY1-B/9-5(8)
TZY2-B/3-5(8)
TZY2-B/5-5(8)bzxz.net
TZY2-B/6-5(8)
TZY2-B/9-5(8)
120/124||tt| |199/145
194/202
122/129
142/150
198/209
The heat dissipation in the table is related to the radiator width B, B is 100 or 120mm1
124/129
145/150
202/210
126/199
147/156
206/217
2The heat dissipation of each piece in the table is the average value of the results obtained by measuring a group of 10 pieces without any coating. The radiator's outer dimension limit deviation and weight shall comply with the provisions of Table 4 and Table 5. 4.4
Test pressure
Superior product
129/134
150/156
210/218
131/139
153/161
214/226
Engineering construction standard full text information system
TZY-B/3-5(8）
TZY-B/5- 5(8)
TZY-B/6-5(8)
TZY-B/9-5(8)
TZY1-B/3-5(8)
TZY1-B/5- 5(8)
TZYI-B/6-5(8)
TZY|-B/9-5(8)
TZY2-B/3-5(8)
TZY2-B/ 5-5(8)
TZY2-B/6-5(8)
TZY2-B/9-5(8)
Column-wing type radiator External dimensions Limit deviation Middle plate height H
Basic dimensions
≤400
≤600
≤700
≤1000
Limit deviation
Foot plate height H2
Basic size
≤480
≤680
≤780
<1080
Limit deviation
Length L
Basic size
Table 5 Weight of column-wing type radiator
Qualified product
10.1/11.0
Note: The weight in the table is related to the width B of the radiator, B is 100 or 120mm. 4.5
Radiator casting quality requirements
Limit deviation
Width B
Basic size
Superior product
4.5.1 The radiator shall not have defects such as cracks and looseness, and pits with an area greater than (4X4)mm2 and a depth of 1.0mm. mm
Limit deviation
kg/piece
4. 5.2 The mold sand and core sand attached to the radiator should be cleaned up, and there should be no sticky sand on the surface. The sticky sand area near the pouring date shall not exceed 7500mm2.
4.5.3 The burrs and casting scars of the radiator should be cleaned up and polished smooth. The longitudinal height of the gate residue shall not exceed 3mm. 4.5.4 The wings of the radiator should be complete. The number of wing drops on the inner wing shall not exceed two, and the length of each wing shall not exceed 50mm. The continuous length of the flower wing shall not exceed 100mm and the depth shall not exceed 5mm.
4.5.5 The surface of the radiator should be flat and smooth, and the surface roughness Ra value should not be greater than 50um. 4.5.6. The misalignment value of the radiator shall not be greater than 1.0mm. 4.6 After the water pressure test, if the radiator is found to have local seepage or leakage, it can be repaired. The surface of the repaired part should be flat and smooth. No more than two repairs should be made on each radiator, and the minimum distance between the edges of the two defects should be greater than 50mm. After repair, the radiator must be retested with water pressure, and the pressure stabilization time should be greater than 3min.
4.7 The machining accuracy of the radiator shall comply with the following provisions. 4.7.1 The continuous thread of the radiator is pipe thread G1, and the machining accuracy shall comply with the provisions of Table 2 of JGJ31-1986. 4.7.2 The limit deviation of the center distance of the inlet and outlet on the same side shall comply with the provisions of JS12 level in GB/T1804 (see Table 6). bzsos,com Engineering Construction Standard Full Text Information System
TZY-B/3-5(8)
TZY-B/5-5(8）
TZY-B/6-5（8）
TZY-B/9-5(8）
Note: The number of columns.
Table 6 Limit deviation of the center distance between the inlet and outlet on the same side
4..3 The two flange end faces on the same side shall be on the same plane, and the flatness tolerance is 0.3mm. 4. 4d
The threaded hole axis and the flange end face shall be perpendicular, and the verticality tolerance is 0.3mm. The coaxiality tolerance between the thread axis and the flange axis is 2.0mm. 4.7.5
The thread shall be 3.5 threads from the flange end face to the inside to ensure that it is complete and free of defects. The flange end face shall not be convex, but the concave amount shall not exceed 0.2mm. Limit deviation
300±0.26
500±0.32
600±0.35
900±0.35
On the flange end face, there shall be no more than two sand holes and air holes with a diameter and depth of less than 3mm. The minimum distance between the edges of two adjacent holes shall be greater than 20mm, and the distance between the hole and the thread edge shall be greater than 3.5mm. 4.8
The machined parts of the radiator shall be coated with anti-rust oil, and other surfaces shall be coated with anti-rust primer. Before coating, dust, dirt, rust spots and other objects on the surface must be removed.
5 Test method
The strength and tightness test of the radiator shall be carried out on a special test bench. The accuracy of the pressure gauge shall not be lower than Class 1.5, the range shall not be greater than 1.6MPa, the test piece temperature shall be higher than 5℃, and the test pressure shall be 1.5 times the working pressure. 5.2
The radiator shall be subjected to a water pressure test, the air in the radiator shall be exhausted, the pressure shall be gradually increased to the specified requirements, and a 0.5kg steel hammer shall be used to tap, the pressure shall be stabilized for 1 minute, and no leakage shall be allowed. 5.3
The thread accuracy shall be inspected by a thread plug gauge. The center distance of the same side inlet and outlet shall be inspected by a special measuring tool. The tensile strength of the radiator material shall be carried out in accordance with the provisions of JB/T7945. 5.5
5.6 The thermal performance test of the radiator shall be carried out on the test bench specified in GB/T13754. Inspection rules
The radiator shall be inspected by the quality inspection department of the manufacturer, and the certificate of conformity shall be signed after passing the inspection before it can leave the factory. 6. The inspection of the radiator is divided into factory inspection and type test. 6.b.1 Factory inspection
a) It shall be in accordance with the general inspection level I in GB2828, and a secondary normal sampling plan shall be adopted. The qualified quality level of its inspection items shall comply with the provisions of Table 7.
b) Rules for judging whether a batch is qualified or unqualified: According to the results of sample inspection, when the number of unqualified products or defects found in the first sample is less than or equal to the first qualified judgment number, the batch is judged to be qualified; when the number of unqualified products or defects found in the first sample is greater than or equal to the first unqualified judgment number, the batch is judged to be unqualified; when the number of unqualified products or defects found in the first sample is greater than the first qualified judgment number and less than the first unqualified judgment number, the second sample is sampled for inspection. When the sum of the number of unqualified products or defects found in the first and second samples is less than or equal to the second qualified judgment number, the batch is judged to be qualified; on the contrary, when it is greater than or equal to the second unqualified judgment number, the batch is judged to be unqualified. c) Use general measuring tools and special measuring tools to inspect the size and geometric tolerance of the radiator; visually inspect the appearance in accordance with the provisions of this standard. d) Use general measuring tools to inspect the edge distance of the repaired defect. .bzsoso, Com Engineering Construction Standard Full Text Information System
Sample size
Batch range
91~150
151~280
281~500
501~1200
Table 7 Inspection sampling plan
Cumulative sample
Sample size
Qualified quality level (AQL)
Inlet and outlet on the same side
Center distance of the mouth
Verticality
Coaxiality
A. R.
Note: A. - qualified judgment number; R. - unqualified judgment number; the value in brackets is the value of the normal sampling plan. 6.2.2 Type test
For any of the following situations, a type test should be carried out and the provisions of 6.4 should be met. a) Trial and final evaluation of new products or old products for production conversion; b) When the radiator has major changes in design, process or raw materials used; cp When production is resumed after more than one year of suspension; db Once every four years for continuously produced radiators. 6.3
The radiator should be pressure tested piece by piece.
6.4 The manufacturer should provide a thermal performance test report made by a nationally designated testing unit. Marking, packaging, transportation, purchase and storage
7. Jin Marking
7.h.1 The radiator should be cast with the registered trademark or logo of the factory. 7.1.2 Each batch of radiators should have an instruction manual and a quality certificate when leaving the factory. The content of the quality certificate includes: a) Manufacturer name;
b) Radiator name and specifications;
c) Working pressure and test pressure;
d) Inspection time, inspection personnel mark and factory date of this batch of radiators. 7.2 Packaging
The radiator can be packaged according to the appropriate materials for each region. 7.3 Transportation
During transportation and handling, the radiator should be handled with care and should not collide with each other to prevent damage. 7.4 Storage
The radiator should be stored in a ventilated and dry warehouse and should not be placed together with corrosive substances. Flatness
.Weight and
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