P3HAFEX. System Description

Transcription

1 P3 P3 5B- extinguisher with Standard bracket P3 engineering GmbH Blohmstraße Hamburg Germany Compiled Checked Approved Date: Date: Date: Name: Name: Name: Signature: Signature: Signature: Page: 1 / 16

2 P3 RECORD OF REVISIONS Effect on Version Date REASONS ORIGIN COMMENTS Page Para A all all Initial release by P3 engineering Page: 2 / 16

3 P3 Content 1 Purpose of document System description and applicable part numbers Qualification Performance Fire extinguisher Product breakdown Dimensions and weights of extinguishers Operation of the extinguisher Standard bracket Product breakdown Dimensions and weights of the standard brackets Installation of the standard bracket-extinguisher assembly Dimensions and weights of the standard bracket-extinguisher assembly Page: 3 / 16

4 P3 1 PURPOSE OF DOCUMENT This document is a system description of the P3 fire extinguisher with its associated brackets. It contains basic information about the portable Halon-alternative fire extinguisher P3, its parts and its brackets as all information necessary for its installation and range of operation. 2 SYSTEM DESCRIPTION AND APPLICABLE PART NUMBERS The system is a combination of an extinguisher and a bracket. The bracket ensures the tight and secure hold of the extinguisher and enables fixation of the system to the structure of the aircraft. The information in this document is applicable for the following part numbers: Part number P3APP003010A P3APP003010B P3APP003010C P3APP003020A P3APP003020B P3APP003020E Nomenclature P3 P3 YELLOW P3 GREEN P3 BRACKET P3 BRACKET P3 BRACKET Table 1: Applicable parts Page: 4 / 16

5 P3 3 QUALIFICATION The equipment in this document has passed the following qualifications: Qualification EN /68/EU Pressure Equipment Directive Table 2: Qualification 4 PERFORMANCE The fire extinguishers in this document achieved the following performance ratings: DOT/FAA/AR-01/37 - Minimum Performance Standard Fire classes 34B as per EN4649 / EN3 5B:C as per UL 711 Table 3: Performance Page: 5 / 16

6 P3 The fire extinguishers and brackets listed in chapter 2 were tested according to RTCA DO- 160, Issue G, Environmental Conditions and Test Procedures for Airborne Equipment and showed the ability to remain intact and operate under the following conditions: Tests RTCA DO-160 Categorie Environmental condition Storage (ground survival) low temperature Cat. A -55 C (-67 F) Short-time operating and operating low temperature Cat. A -45 C (-49 F) Storage (ground survival) high temperature Cat. A +85 C (+185 F) Short-time operating high temperature Cat. A +85 C(+185 F) Temperature Variation Cat. B -55 C / +85 C Altitude and Decompression Mechanical Tests - Vibrations - Operational shocks - Crash safety test Cat. U Cat. B Cat. B 12 km ( ft) Robust Vibrations (random) Cat. R - - Operational shocks Crash safety test Abuse Load Sustained 26.6 g 73.5 dan (165 lbf) Overpressure p = 190 kpa (27 psi) Table 4: Environmental conditions Page: 6 / 16

7 P3 5 FIRE EXTINGUISHER 5.1 Product breakdown Three basic variants of the EN-extinguisher exist: P3APP003010A, P3APP003010B and P3APP003010C. The only difference is an additional colored label above the main label for variants B and C, therefore weights, dimensions and performance are identical for all variants. The extinguisher consists of three main parts: 1. Cylinder 2. Valve body 3. Extinguishing agent with propellant gas The cylinder is made of Aluminum. It is deep-drawn and therefore has no welding-joints, which ensures a high burst pressure of more than 60 bar. It has a volume of 1.44 liter. For every cylinder a hydrostatic pressure test with 27 bar is performed and the cylinder is marked accordingly The valve body is injection molded and made of POM. It is a single-piece design including the handle and nozzle. Assembled with the valve head are the siphon tube, spindle, syntherized filter, spring, o-rings, pressure gauge, lever, safety seal and safety pin. The extinguisher fulfills the requirements of the pressure equipment directive and therefore is marked with the CE- mark. It also fulfills the requirements of US Department of Transportation (DOT). Figure 1: EN-Extinguisher Page: 7 / 16

8 P3 Components Materials 1 Valve body Polymer (POM-C) 2 Lever Polymer (POM-H) 3 Spindle Polymer (POM-H) 4 O-ring lower for spindle 5.00 x 3.00 Neopren (CR701) 5 O-ring upper for spindle 2.90 x 1.78 Neopren (CR701) 6 Tapered Spring Stainless steel (AISI 303) 7 Siphon Tube Polymer (POM-C) 8 Syntherized Filter Bronze (C907000) 9 Painted Cylinder Aluminum (EN AW 3003) with polyester powder painting 10 O-Ring for cylinder x 3.00 Neopren (CR701) 11 Safety Pin Polymer (PA66) 12 Safety Seal Polymer/ Elastomer (HDPE with 30% TPE) 13 Pressure gauge Socket: brass, lense: PC 14 Extinguishing agent 2-BTP (stabilized 2-bromo-3,3,3-trifluoro-propene) 15 O-ring for gauge 7.65 x 1.78 Neropren (CR701) 16 RFID-label - Table 5: Materials of EN-extinguisher 5.2 Dimensions and weights of extinguishers P3APP003010A P3APP003010B P3APP003010C Lifetime 12 Years Weight 2.2 kg (4.9 lb) Dimensions x x 89 mm (13.6 x 4.4 x 3.5 inch) Discharge Duration Approx seconds Operating pressure 9 bar (130 psi) at 20 C Test pressure 27 bar (391 psi) Table 6: Fire extinguisher basic info. Page: 8 / 16

9 P3 Figure 2: Dimensions of P3APP003010A/B/C 5.3 Operation of the extinguisher For the operation of the extinguisher, the following steps are necessary (refer to Figure 1): 1. Check if the pressure on the pressure gauge (13) is in the green area. 2. Pull safety pin (11) safety seal (12) will break. 3. Aim extinguisher at base of fire. 4. Press lever (2) and move stream into fire. By pushing the lever (2) against the resistance of the tapered spring (6), the spindle (3) is pushed down and the propelling gas pushes the extinguishing agent (14) through the siphon tube (7) into the valve body (1) and out of the integrated valve. Pressure is shown by a bourdon- tube type gauge which is screwed into the extinguisher head. Page: 9 / 16

10 P3 6 STANDARD BRACKET Three basic variants exist of the standard bracket: P3APP003020A, P3APP003020B and P3APP003020E. They are basically the same; the variants B and E are longer than variant A and have additional fixation points. Variant E is a variation of variant B with two elongated holes. Environmental and mechanical performance is the same for all variants. 6.1 Product breakdown The standard bracket is an assembly of three different parts: 1. Polymeric bracket body 2. Two metallic straps with protective shrink sleeves 3. Label The bracket body is an injection molded part and designed to match the dimensions of the 5B-extinguisher. It has multiple fixation points for interchangeability with brackets of various other manufacturers, allowing easy retrofit The fixation of the extinguisher on the bracket is done by two stainless steel straps. The straps are rotatable during installation to adjust the position of the closing mechanism. Therefore, the height of the brackets is variable as shown in Figure 3 and the same for all three variants. Figure 3: Rotatable straps Page: 10 / 16

11 P Figure 4: P3APP003020A (left), P3APP003020B (right). bracket components Material 1 Bracket body Polymer (PA66) 2 Latch Strap Stainless steel (EN ) 3 Latch Plate Stainless steel (EN ) 4 Latch Hook Stainless steel (EN ) 5 Sleeve Polymer (PO-X) Table 7: Materials of standard bracket. Page: 11 / 16

12 P3 6.2 Dimensions and weights of the standard brackets P3APP003020A P3APP003020B P3APP003020E Lifetime Max. weight Dimensions Lifetime Max. weight Dimensions 25 Years 0.17 kg (0.37 lb) 265 x 90 x 108 mm (10.4 x3.5 x 4.2 inch) 25 Years 0.18 kg (0.39 lb) 265 x 90 x 108 mm (10.4 x3.5 x 4.2 inch) Table 8: Standard bracket basic info. Figure 5: Dimensions P3APP003020A Page: 12 / 16

13 P3 Figure 6: Dimensions P3APP003020B Figure 7: Dimensions P3APP003020E Page: 13 / 16

14 P3 6.3 Installation of the standard bracket-extinguisher assembly The brackets in this document allow several installation possibilities for easy retro fit and adaption to the installation needs. Figure 8 shows the possible combinations, while Figure 9 shows possible retro-fit solutions. Figure 8: Hole patterns for installation of P3APP003020A/B/E Page: 14 / 16

15 P3 Please see Figure 9 for the correct placement of screws and washers. Figure 9: Possible retro-fit solutions Page: 15 / 16

16 P3 7 DIMENSIONS AND WEIGHTS OF THE STANDARD BRACKET-EXTINGUISHER ASSEMBLY The package dimensions for the combination of extinguisher and bracket are the same for all variants: P3APP Max. weight Dimensions 2.5 kg (5.5 lb) 350 x 114 x 108 mm (13.7 x 4.5 x 4.3 inch) Figure 10: Assembly drawing of P3APP003010A with P3APP003020B Page: 16 / 16