GB/T 22380.2-2019Explosion protected safety technique of the petrol filling station - Part 2: Safety requirements for construction and performance of safe breaks for use on dispensers (English PDF)

Foreword

GB/T 22380 `` Explosion-proof safety technology for fuel gas stations '' is divided into several parts.

--- Part 1. Technical requirements for explosion-proof safety of fuel dispensers;

--- Part 2. Safety requirements for the structure and performance of safety pull-off valves for tankers;

--- Part 3. Safety requirements for shear valve structure and performance;

This part is the second part of GB/T 22380.

This section is drafted in accordance with the rules given in GB/T 1.1-2009.

This part replaces GB 22380.2-2010 "Explosion-proof safety technology for fuel gas stations. Part 2. Safety pull-off valve structure for fuel dispensers".

Compared with GB 22380.2-2010, the main technical changes are as follows.

--- Increased the applicable temperature range, non-applicable equipment and fuel categories not considered in this section (see Chapter 1);

--- Increased the requirements for the EPL level of the safety break-off valve (see 4.2);

--- Increased inlet and outlet thread types (see 5.3).

1 Scope

This part of GB/T 22380 stipulates that it is installed in gas stations to provide vehicles, ships, and light aircraft with a flow rate of not more than 200L/min.

Explosion-proof measures, structures, and materials for safety pull-off valves of fuel tankers (hereinafter referred to as "fuel dispensers") that are filled with liquid fuel or mobile tank containers Management performance, functional requirements, test and use information.

This section applies to the installation of gas stations to vehicles, ships, light aircraft or mobile tanks at a flow rate of not more than 200L/min.

A safety pull-off valve for a fuel dispenser that adds liquid fuel to a fuel dispenser.

This section is applicable to safety pull-off valve used at ambient temperature -20 °C ~ 40 °C.

Note: When the ambient temperature range is outside -20 °C ~ 40 °C, other measures need to be taken, and it should be negotiated between the manufacturer, user and inspection agency.

This section pays special attention to the electrical, mechanical and hydraulic performance of safety disconnect valves, and electrical equipment installed inside or outside of safety disconnect valves.

This section mainly deals with the danger of ignition of liquid fuel or its vapor when refueling. This section also deals with electrical and non-electrical hazards.

This section does not apply to equipment for liquefied petroleum gas (LPG) or liquefied natural gas (LNG) or compressed natural gas (CNG). This section does not consider fuels other than Class IIA.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document.

GB/T 193 ordinary thread diameter and pitch series

GB 3836.1-2010 Explosive environment Part 1: General requirements for equipment

GB/T 7307 55 ° unsealed pipe thread

GB/T 9145 Medium-precision, preferred series of ordinary threads

GB/T 9572-2013 Rubber and plastic hoses and hose assemblies-Determination of resistance and conductivity

GB/T 10543 Specification for rubber hoses and hose assemblies for aircraft ground refueling and drainage

GB/T 12716 60 ° sealed pipe thread

GB 17930 Motor gasoline

GB 18351 ethanol gasoline for vehicles (E10)

GB/T 22380.1-2017 Fuel gas station explosion-proof safety technology Part 1: Technical requirements for explosion-proof safety of fuel dispenser

GB 25285.1 Explosion prevention and protection in explosive environment Part 1: Basic principles and methods

GB 25286.1-2010 Non-electrical equipment for explosive atmospheres-Part 1: Basic methods and requirements

GB/T 32476 Rubber and plastic hoses and hose assemblies for metered and distributed fuel with oil and gas recovery

HG/T 3037 Rubber and plastic hoses and hose assemblies for metering and distribution of fuel

ISO 11925-3 Fire response test-Flammability of building products directly exposed to fire-Part 3. Multiple fire source test (Reaction to fire tests - Ignitability of building products subjected to direct impingement of flame - Part 3. Multi-source test)