1.1.1 This standard is applicable to chemical processing equipment of steeliness and cast iron, tube composite and pipe casting rubber lining, for resisting chemical mediator corrosion or resisting solid particles abrasion; it is also applicable to rubber lining parts in the composite liner equipment with rubber acting as isolating layer.
1.1.2 This standard excludes liquid state rubber layer of equipment painting and spray painting.
1.1.3 This standard is not applicable to equipment of steam heating with strap clamp nesting, and pipe and pipe casting with threaded connection.
1.2 Working temperature and working pressure of rubber lining equipment
1.2.1 Operating temperature range
(1) Permissible working temperature of ebonite board is 0-+85℃. When vacuum tightness is less than or equal to 0.08 MPa, the maximum operating temperature is +65℃; when vacuum tightness is larger than 0.08 MPa and is less than 0.093 MPa, the maximum operating temperature is +40℃.
(2) Permissible working temperature of semi-ebonite plate and soft rubber plate is-25-+75℃.
(3) Permissible working temperature of synthetic rubber plate may be determined according to refractability in the product description and observed temperature of the samples.
(4) Permissible working temperature of special rubber plate shall be determined according to technical conditions established by manufacturing plant and develop organizations.
1.2.2 Working pressure scope
Nominal pressure is less than or equal to 0.6 MPa (gage pressure).
1 General provision
2 Material of rubber lining
3 Design for rubber lining
4 Structural designs for rubber lining equipment, pipeline, and pipe casting
5 Manufacturing, testing and acceptance for metallic shell of rubber lining equipment
6 Construction and sulfurization technology of rubber lining
7 Inspection and acceptance
8 Packing, transportation, storage and installation
Appendix A Quality Requirements for Material of Rubber Lining (Reference)
Appendix B Chemical Stability of the Rubber (reference)
Appendix C Sulfurization Technology (Reference)
Appendix D Structural Dimension of Noumenon Sulfurization Flange, Blind Flange, and Gasket (Reference)
Appendix E Using Examples for Chemical Processing Equipment of Rubber Lining (Reference)
Appendix F Partial Rubber Plate Designations and Production Department Inland (Reference)
Appendix G Partial Vulcanizer Dimension of Rubber Lining Equipment Manufacturer Inland (Reference)
Appendix H Measuring Method of Peel Strength for Vulcanized Rubber Welding with Metal in 90° (Reference)
1.1.1 This standard is applicable to chemical processing equipment of steeliness and cast iron, tube composite and pipe casting rubber lining, for resisting chemical mediator corrosion or resisting solid particles abrasion; it is also applicable to rubber lining parts in the composite liner equipment with rubber acting as isolating layer.
1.1.2 This standard excludes liquid state rubber layer of equipment painting and spray painting.
1.1.3 This standard is not applicable to equipment of steam heating with strap clamp nesting, and pipe and pipe casting with threaded connection.
1.2 Working temperature and working pressure of rubber lining equipment
1.2.1 Operating temperature range
(1) Permissible working temperature of ebonite board is 0-+85℃. When vacuum tightness is less than or equal to 0.08 MPa, the maximum operating temperature is +65℃; when vacuum tightness is larger than 0.08 MPa and is less than 0.093 MPa, the maximum operating temperature is +40℃.
(2) Permissible working temperature of semi-ebonite plate and soft rubber plate is-25-+75℃.
(3) Permissible working temperature of synthetic rubber plate may be determined according to refractability in the product description and observed temperature of the samples.
(4) Permissible working temperature of special rubber plate shall be determined according to technical conditions established by manufacturing plant and develop organizations.
1.2.2 Working pressure scope
Nominal pressure is less than or equal to 0.6 MPa (gage pressure).
Contents of HG/T 20677-1990
1 General provision
2 Material of rubber lining
3 Design for rubber lining
4 Structural designs for rubber lining equipment, pipeline, and pipe casting
5 Manufacturing, testing and acceptance for metallic shell of rubber lining equipment
6 Construction and sulfurization technology of rubber lining
7 Inspection and acceptance
8 Packing, transportation, storage and installation
Appendix A Quality Requirements for Material of Rubber Lining (Reference)
Appendix B Chemical Stability of the Rubber (reference)
Appendix C Sulfurization Technology (Reference)
Appendix D Structural Dimension of Noumenon Sulfurization Flange, Blind Flange, and Gasket (Reference)
Appendix E Using Examples for Chemical Processing Equipment of Rubber Lining (Reference)
Appendix F Partial Rubber Plate Designations and Production Department Inland (Reference)
Appendix G Partial Vulcanizer Dimension of Rubber Lining Equipment Manufacturer Inland (Reference)
Appendix H Measuring Method of Peel Strength for Vulcanized Rubber Welding with Metal in 90° (Reference)
