GB/T 26747-2023Fiber reinforced plastic composites tanks for water treatment units (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

This document replaces GB/T 26747-2011 "Composite material tanks for water treatment equipment". Compared with GB/T 26747-2011, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows:

a) The pressure level has been changed (see Chapter 1, Chapter 1 of the 2011 edition);

b) The serial numbers 05 and 06 for the outer diameter of the tank and the serial numbers 10 and 12 for the height of the tank body have been added (see Table 1 and Table 2);

c) Increased classification and marking of pressure levels (see 4.2, 4.3);

d) Changed the method of determining the thickness of the strength layer of composite materials (see 5.1.3, 4.1.3 of the 2011 edition);

e) Increased the types of tank top materials (see 5.2.4);

f) The requirements and test methods for hydraulic leakage of tanks with a pressure rating of 0.70MPa are added (see 6.6 and 7.6);

g) Added hydraulic fatigue requirements and test methods for tanks with a pressure rating of 0.70MPa (see 6.7, 7.7);

h) Added the hydraulic pressure failure pressure requirements for tanks with a pressure rating of 0.70MPa (see 6.8);

i) Change the minimum thickness measurement method of the inner lining layer of the tank and the strength layer of the composite material (see 7.2.4, 6.2.4 of the 2011 edition);

j) Changed the graduation value of the pressure gauge (see 7.6, 6.6 of the 2011 edition);

k) Added outer diameter serial numbers 05 and 06 composite material tank specifications (see Table A.1);

l) The expression method of the tank mouth thread specification has been changed (see Figure B.1, Figure B.1 of the 2011 edition).

1 Scope

This document specifies the specifications, classification and marking, structure and raw materials of composite tanks for water treatment devices (hereinafter referred to as composite tanks) Materials, requirements, test methods, inspection rules, signs, packaging, transportation and storage.

This document is applicable to the glass used in conjunction with water treatment equipment with a pressure rating of 0.70MPa and 1.05MPa and an operating temperature of 1°C~49°C Filament winding composite tank.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 191 Packaging, storage and transportation icon marks

GB/T 1303.4 Thermosetting resin industrial rigid laminates for electrical purposes - Part 4: Epoxy resin rigid laminates

GB/T 2576 Test method for insoluble content of fiber reinforced plastic resin

GB/T 2577 Test method for resin content of glass fiber reinforced plastics

GB/T 3854 Barcol Hardness Test Method for Reinforced Plastics

GB/T 8237 Liquid unsaturated polyester resins for fiber reinforced plastics

GB/T 11115 polyethylene (PE) resin

GB/T 12670 polypropylene (PP) resin

GB/T 12672 Acrylonitrile-Butadiene-Styrene (ABS) Resin

GB/T 13657 bisphenol A epoxy resin

GB/T 17219 Safety Evaluation Criteria for Drinking Water Transmission and Distribution Equipment and Protective Materials

GB/T 17470 Glass fiber chopped strand mat and continuous strand mat

GB/T 18369 Glass fiber roving

GB/T 18370 Glass fiber untwisted roving

GB/T 38288 Plastic Polypropylene Recycled and Modified Special Materials

HG/T 2232 Modified polyphenylene ether engineering plastics

3 Terms and Definitions

This document does not have terms and definitions that need to be defined.

4 Specifications, classification and marking