GB/T 27906-2026Line throwing appliances (English PDF)

5.1 General Requirements

5.1.1 The pneumatic projectile shall be equipped with a projection pressure gauge with an accuracy of not less than

2.5 and a minimum graduation value not greater than

0.5 MPa, in a dark environment. The pressure reading should be able to be read under normal conditions.

5.1.2 The launcher shall be equipped with a launch safety device. The disengagement action of the safety device shall be distinct from the launch action of the launcher, and the safety device shall... It has an automatic reset function.

5.1.3 For launchers equipped with a base, the base shall have stabilizing measures and shall be equipped with a launch angle adjustment device. Additionally, the launcher body or base shall be equipped with a launch angle adjustment device. The nominal emission angle is noted above.

5.1.4 The pneumatic projectile body or base shall be marked with reference values for the projectile pressure and projectile distance at the nominal launch angle; the electric projectile... The reference values for projectile power and projectile distance at the nominal launch angle should be marked on the projectile body or base.

5.1.5 If the thrown object contains general lifesaving equipment, it shall comply with the relevant standards and regulations; if the thrown object contains rope, it shall be equipped with a rope reel. Device.

5.1.6 Pneumatic throwing devices with external air supply function shall have interfaces that comply with the requirements of XF124.

5.2 Appearance Requirements

5.2.1 The surface of the life-saving thrower (hereinafter referred to as "thrower") should be smooth and free from defects such as burrs, pinholes, looseness, cracks, and scars.

5.2.2 The connectors and fasteners of the throwing device shall be securely assembled.

5.3 Performance Parameters The performance parameters of the projectile should conform to the provisions of Table 2, and the launching distance should not be less than the rated launching distance.

5.4 Quality

5.4.1 The mass of the throwing device itself should not exceed 15 kg.

5.4.2 The weight of the base of the throwing device (where applicable) should not exceed 15 kg.

5.5 Salt spray corrosion resistance After a 120-hour neutral salt spray test, the metal parts of the projectile should not show significant corrosion, and the launching distance should not be less than the rated distance. 90% of the launch distance.

5.6 Sealing performance During the sealing performance test, no leakage should occur in any of the pressurized components of the pneumatic thrower.

5.7 Pressure Resistance After undergoing a pressure resistance test at twice the rated working pressure, there should be no leakage or deformation in any of the pressure-bearing components of the pneumatic throwing device.

5.8 High Temperature Resistance After the high-temperature test, the projectile should show no obvious swelling, adhesion, or delamination of any components, and the projectile distance should not be less than the rated projectile distance. 90%.

5.9 Low-temperature resistance After the low-temperature test, the components of the projectile should show no obvious shrinkage, cracking, or brittleness, and the launching distance should not be less than the rated launching distance. 90%.

5.10 Reliability Performance After reliability performance testing, no parts of the launcher should detach or break, and the launching distance should not be less than the rated launching distance. 90%.

5.11 Safety valve opening pressure The opening pressure of the safety valve of the pneumatic throwing device should be

1.1 times the rated working pressure, and the error should not exceed ±0.5MPa.

5.12 Gas Cylinder The steel gas cylinders in the launcher should meet the requirements of GB/T 5099, and the aluminum alloy gas cylinders should meet the requirements of GB/T 11640.(The last part, "compound gas," appears to be incomplete and possibly refers to a different gas type.) The bottle should meet the requirements of GB 28053.

5.13.1 Rope

5.13.1.1 Rope Appearance The surface of the rope should not have any mechanical damage, and the entire rope should be of uniform thickness and consistent structure.

5.13.1.2 Rope breaking strength The breaking strength of land-based ropes should not be less than 2kN, and the breaking strength of water-based ropes should not be less than 6kN.

5.13.1.3 Buoyancy performance of water ropes The rope used for water should be able to float on the water surface, and the floating time should not be less than 1 hour.

5.13.2 Inflatable life ring

5.13.2.1 Fabric breaking strength The warp and weft tensile strength of the fabric of an inflatable life ring should not be less than 800N.

5.13.2.2 Fabric tear strength The tear strength of the fabric in an inflatable life ring should not be less than 35N in the warp and weft directions.

5.13.2.3 Buoyancy and Buoyancy Loss The buoyancy of an inflatable life ring should not be less than 100N, and the buoyancy loss should not exceed 5% after immersion in water for 12 hours.

5.13.2.4 Inflation performance Inflatable life rings should have the function of automatically inflating and unfolding upon contact with water, and the time to fully unfold should not exceed 5 seconds.

5.13.2.5 Tensile strength of the inflation head The inflation head of an inflatable life ring should not be affected by a tensile force of 220N.

5.13.2.6 Internal Overpressure Performance The internal pressure of the inflatable life ring reaches 70 kPa, and no signs of damage should appear after maintaining this pressure for 2 minutes.

5.13.3 Anchor Hook

5.13.3.1 Claw Strength When a single hook claw of the anchor is subjected to a tensile force of 11kN, it should not break or suffer structural failure that affects its function.

5.13.3.2 Connection Strength The connection between the anchor hook and the rope or other traction device should not break or be damaged when subjected to a tensile force of 20kN.

5.14 Operational Performance The release force of the safety device of the launcher shall not be less than 10N and not greater than 100N, and the opening force of the launcher's firing switch shall not be less than 10N and should not exceed 300N.

6.13.1 Rope performance test

6.13.1.1 Rope visual inspection Inspect the surface of the rope visually.

6.13.1.2 Rope breaking strength test Take three rope samples and conduct tests according to Appendix A of XF494-2023.Record the test data for three tests and take the minimum value. Experimental results.

6.13.1.3 Water rope buoyancy test Take any 0.5m sample and place it in fresh water for 1 hour to observe whether it remains floating.

6.13.2 Performance Test of Inflatable Lifebuoy

6.13.2.1 Fabric breaking strength test Three samples were taken from both the warp and weft directions and tested according to GB/T 3923.1.The average value of the breaking strength in the warp and weft directions was calculated respectively.

6.13.2.2 Fabric tear strength test Three samples were taken from both the warp and weft directions and tested according to GB/T 3917.3.The average value of the tear strength in the warp and weft directions was calculated respectively.

6.13.2.3 Buoyancy and Buoyancy Loss Test 6.13.2.3.1 Test Equipment One freshwater tank, one force gauge with an accuracy of not less than 0.1N, one non-absorbent mesh basket, and one weight. The mass of the weight should be such that... The basket with the weight attached does not emerge from the water after being placed in a lifebuoy. 6.13.2.3.2 Test Procedure Follow these steps to conduct the experiment.

a) Hang a heavy object in an empty net basket, immerse it in water and suspend it in the middle of the water tank, and record the gravity value F1 at this time.

b) Place the lifebuoy in the net basket, hang the weight, immerse it in water and suspend it in the middle of the water tank. Record the gravity value F2 after 5 minutes.

c) Record the gravity value F3 after 12 hours.

d) Calculate the buoyancy of the lifebuoy according to formula (1).

e) Calculate the buoyancy loss of the lifebuoy according to formula (2).

6.13.2.4 Inflation performance test Place the stored life ring into the water, start timing from when the inflation device is activated, record the time it takes to fully inflate, and observe the unfolding process.

6.13.2.5 Tensile strength test of inflatable head Fix the inflator of the lifebuoy in its stored state, and apply a force of 220N to the inflator randomly in three different directions using a tensioning device. Submerge it in water and observe the inflation process.

6.13.2.6 Internal Overpressure Performance Test In an environment of 15°C~25°C, inflate the life ring with an air source equipped with a pressure gauge, and stop inflating when the pressure reaches 70kPa. Check the lifebuoy for damage after 2 minutes.

6.13.3 Anchor hook performance test

6.13.3.1 Claw Strength Test Fix the tail end of the anchor hook, and use a tensile testing machine to apply a tensile force of 11kN to each claw of the anchor hook, and observe the condition of the claws.

6.13.3.2 Connection strength test Fix one end of the anchor hook claw with a clamp, apply an axial tensile force of 20kN to the connection part of the other end of the anchor hook, and observe the connection part. Condition.

6.14 Operational performance test The release force of the safety device and the opening force of the launch switch of the launcher are measured using a force gauge with an accuracy of not less than 1N.

7.1 Factory Inspection

7.1.1 Each set of throwing devices shall undergo factory inspection by the factory's quality inspection department before leaving the factory.

7.1.2 Factory inspection shall be carried out in accordance with the provisions of 5.1~5.4,

7.2 Type Testing

7.2.1 Type testing shall be conducted under any of the following circumstances.

a) Trial production and type approval of new products or old products transferred to another factory for production;

b) Changes in the product's design, structure, materials, components, parts, manufacturing processes, or production conditions may affect product quality. Measure time;

c) When the technical requirements specified in the product standard change;

d) When production resumes after a shutdown of one year or more;

e) When the product quality supervision department requests type testing;

f) Other situations where product quality can only be proven through type testing.

7.2.2 Type testing items shall be conducted in accordance with Chapter 5 and

8.1 of this document. Three sets of samples shall be randomly selected from the batches that have passed the factory inspection.

7.2.3 The type test is considered qualified only if all the tested items comply with the provisions of this document.

8.2 Packaging

8.2.1 The product instruction manual, packing list, certificate of conformity, spare parts, etc., should be packed into the packaging box along with the product, and the product should be secured with shock-absorbing material. The packaging boxes should be secure and reliable, and should be kept separate from the container.

8.2.2 The following information should be included on the outside of the packaging box.

a) Product model (name);

b) Quantity of contents (items);

c) Packaging box dimensions. Length × Width × Height (mm);

e) Product manufacturing date or serial number;

f) Manufacturer's name and address;

8.2.3 The instruction manual included in the packaging should at least include the following.

a) Specifications regarding the rated working pressure or rated power of the throwing device, the name and quantity of accessories, etc.;

b) The rated launch distance for each type of projectile;

c) Nominal launch angle of the launcher;

d) The performance parameters, usage methods, and inspection procedures of the throwing device;

e) Safety precautions;

f) Recommended service life;