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Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 12839-2020: Terms and definitions of tyre valves Status: Valid GB/T 12839: Historical versions
Basic dataStandard ID: GB/T 12839-2020 (GB/T12839-2020)Description (Translated English): Terms and definitions of tyre valves Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G41 Classification of International Standard: 83.160.01 Word Count Estimation: 34,374 Date of Issue: 2020-03-06 Date of Implementation: 2021-02-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 12839-2020: Terms and definitions of tyre valves---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Terms and definitions of tyre valves ICS 83.160.01 G41 National Standards of People's Republic of China Replace GB/T 12839-2012 Terms and definitions of tire valve (ISO 3877-2.1997, Tyres, valves andtubes-Listofequivalentterms- 2020-03-06 released 2021-02-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee Table of contentsPreface Ⅲ 1 Scope 1 2 Terms and definitions of tire valve 1 3 Terms and definitions of tire valve parts 3 4 Tire valve position, size terms and definitions 6 5 Other terms and their definitions 8 Index 22ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 12839-2012 "Tire Valve Terms and Definitions", compared with GB/T 12839-2012, the main technical The technical changes are as follows. ---Added the terms and definitions of TPMS snap-in valve (see 2.8); ---Added the terms and definitions of TPMS compression tubeless valve (see 2.9); ---Added the terms and definitions of TPMS extension tube (see 2.25); ---Modified the definition of the term tube body (see 3.11, 3.11 in the.2012 edition); ---Added the terms and definitions of common core cavity protective caps (see 3.13); ---Added the terms and definitions of the protective cap of the large core cavity (see 3.14); ---Added the terms and definitions of the protective cap of the motorcycle (see 3.15); --- Deleted the terms and definitions of the inner spring valve core (see 3.26 in the.2012 edition); --- Deleted the terms and definitions of the outer spring valve core (see 3.27 in the.2012 edition); ---Added the terms and definitions of ejector pins (see 3.43); ---Added the terms and definitions of TPMS connection thread (see 4.14); ---Added the terms and definitions of the TPMS valve identification ring (see 4.21); ---Modified the definition of the term bending angle (see 4.25, 4.23 of the.2012 edition); ---Added the terms and definitions of tire pressure monitoring system/tire pressure monitoring system (see 5.6); ---Added the terms and definitions of nut installation torque (see 5.7); ---The terms and definitions of the installation torque of the protective cap have been added (see 5.8); ---Added the terms and definitions of the core head position (see 5.9); ---Added TPMS snap-on valve graphics (see Figure 13); ---Added TPMS compression tubeless valve graphics (see Figure 14); ---Added the description of the ejector pin (see Figure 16); --- Added TPMS extension tube graphics (see Figure 17); ---Modified the graphics of the sealing cap (see Figure 18, Figure 15 of the.2012 edition); ---Modified the graphics and description of the socket (see Figure 20, Figure 14 of the.2012 edition); ---Added Liche inner tube valve core graphics (see Figure 23). This standard uses the redrafting method to refer to ISO 3877-2.1997 "Tire Valve and Inner Tube Terminology Comparison Table Part 2.Tire "Valve" is compiled, and the degree of consistency with ISO 3877-2.1997 is not equivalent. This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Tire and Rim Standardization Technical Committee (SAC/TC19). Drafting organizations of this standard. Jiangyin Chuangxin Valve Co., Ltd., Dongying Hengna Auto Parts Co., Ltd., Yuyao Renke Electromechanical Technology Co., Ltd. Company, Ningbo Haofeng Cisco Auto Parts Co., Ltd., Shandong Gaotian Metal Manufacturing Co., Ltd., Gaomi Tongchuang Valve Core Co., Ltd., Jiangyin Tianmeng Automobile Distribution Technology Co., Ltd., Xiamen Xiahui Rubber Metal Industry Co., Ltd., Shanghai Baolong Automobile Technology Co., Ltd., Cixi Jingwei Valve Co., Ltd., Shandong Haomai Valve Co., Ltd. The main drafters of this standard. Cao Chengwei, Dong Yuefei, He Zhangbin, Li Yunxiang, Du Guimin, Li Jian, Tang Yu, Nie Yangyang, Wang Xianyong, Qiu Xiaojie, Deng Yanju. The previous versions of the standard replaced by this standard are as follows. ---GB/T 12839-1991, GB/T 12839-1997, GB/T 12839-2005, GB/T 12839-2012. Terms and definitions of tire valve1 ScopeThis standard defines tire valve terms and their definitions, tire valve parts and their definitions, tire valve positions and dimensions Terms and their definitions and other terms and their definitions. This standard applies to cars, trucks, industrial vehicles, construction machinery, tractors, agricultural and forestry machinery, motorcycles, electric vehicles and power Vehicle tire valve.2 Tire valve terms and definitions2.1 Tyrevalve A valve used to charge and discharge gas or liquid in a tire and maintain its internal pressure. 2.2 Tubevalve Valves for pneumatic tires with inner tubes (see Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8). 2.3 Rubberbasevalve Inner tube valve with rubber base (see Figure 1, Figure 2, Figure 3, Figure 4, Figure 6, Figure 8). 2.4 Tubeclamp-invalve tubeclamp-invalve Under the action of the fasteners, the valve base and the inner tube are press-fitted to obtain a sealed inner tube valve (see Figure 5 and Figure 7). 2.5 Tubeless valve Rim valve Valves for tubeless pneumatic tires (see Figure 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14). 2.6 Snap-invalve The elastomer part of the valve is matched with the rim to obtain a tubeless valve that is sealed and installed without fasteners (see Figure 9, Figure 13). 2.7 Tubelessclamp-invalve Under the action of the fastener, the elastic seal on the valve is pressed and fitted with the rim to obtain a sealed tubeless valve (see Figure 10, Figure 11, Figure 12, Figure 14). 2.8 TPMS snap-invalve TPMSsnap-invalve Use the valve elastomer part to match the rim to obtain a tubeless valve that is sealed and installed without fasteners and can be connected to TPMS Mouth (see Figure 13). 2.9 TPMS tubeless clamp-invalve TPMS tubeless clamp-invalve Under the action of the fastener, the elastic seal on the valve nozzle is press-fitted with the rim to obtain a seal and can be connected to the TPMS Tubeless valve (see Figure 14). 2.10 Swivelvalve A valve whose mouth body can rotate around the central axis of the mouth seat (see Figure 10). 2.11 Ordinary core chamber valve ordinarycorechambervalve Valves with a minimum aperture of less than 4.6mm in the core cavity (see Figure 1, Figure 2, Figure 3, Figure 5, Figure 6, Figure 9, Figure 11). 2.12 Largecorechambervalve Engineering machine valve Valves with the smallest aperture in the core cavity greater than or equal to 4.6mm (see Figure 4 and Figure 10). 2.13 Air-water valve Used for inflatable and liquid-filled valve (see Figure 3). 2.14 Screw-onuniversalvalve The valve body and the nozzle seat are divided into two parts, and the valve is fastened together by threads in use (see Figure 4 and Figure 6). 2.15 Rubber-covered valve The part of the nozzle body that fits with the rim hole is fully or partially covered by the rubber layer connected to the rubber base (see figure 2). 2.16 Straight valve straight valve The center axis is a straight line valve. 2.17 Single-bend valve single-bendvalve There is a curved valve on the center axis (see Figure 1, Figure 4, Figure 6, Figure 10). 2.18 Double-bend valve There are two curved valves on the central axis (see Figure 1). 2.19 Triple-bendvalve There are three curved valves on the central axis. 2.20 Quadruple-bendvalve There are three or more curved valves on the central axis. 2.21 Tubevalveforcycles The inner tube valve used for the pneumatic tire of the rickshaw (see Figure 7 and Figure 8). 2.22 Clamp-intube valve forcycles Under the action of the fastener, the valve base and the inner tube are press-fitted to obtain a tightly sealed inner tube valve (see Figure 7). 2.23 Rubber base tube valve forcycles The inner tube valve with rubber base (see Figure 8). 2.24 Extension Extend the valve to facilitate the takeover of the tire inflation (see Figure 15, Figure 16, Figure 17). 2.25 TPMS extension tube TPMSextension Extend the valve to facilitate tire inflation and can be connected to the TPMS connector (see Figure 17).3 Terms and definitions of tire valve parts3.1 Valvestem The valve has a core cavity in the valve, which is directly connected to the inner tube or the rim through the nozzle seat (see Figure 1, Figure 2, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14). 3.2 Metalstem The metal part of the rubber seat valve or snap-on valve body (see Figure 1, Figure 2, Figure 3, Figure 4, Figure 8, Figure 9). 3.3 Corehousing It has a valve core cavity structure, which is installed on the nozzle seat and is sealed with the valve seat (see Figure 3). 3.4 Corehousingstem Core sleeve without O-ring seal. 3.5 Mouth seat valvespud Connect the nozzle body or core sleeve and install the valve parts on the inner tube or rim (see Figure 3, Figure 5, Figure 10, Figure 12). 3.6 Valvespudstem The main body of the nozzle holder without any parts (see Figure 10 and Figure 12). 3.7 Connectionstem Installed on the extension tube hose, one end has a pipe joint shape, and the other end has a valve core cavity structure part (see Figure 15, Figure 17). 3.8 Fixedhousing The metal sleeves that fix the parts at both ends of the hose in the extension tube (see Figure 15, Figure 17). 3.9 Connectionpipe Installed on the extension tube hose, one end has a pipe joint shape, and the other end has a zero that simultaneously pushes the valve core structure after being connected to the valve nozzle. Pieces (see Figure 15, Figure 17). 3.10 Connectionnut The extension pipe is installed at the top end of the connecting pipe and has parts with a structure for connecting with the external thread of the valve (see Figure 15, Figure 17). 3.11 Pipebody One end of the extension tube is directly or indirectly mounted on the external thread of the valve, and the other end has a valve core cavity structure (see Figure 16). 3.12 Protective cap valvecap A top cap that protects the valve core cavity and valve core. Note. Protective caps are divided into sealed caps and non-sealed caps. 3.13 Ordinary core chamber protective cap ordinarycorechambervalvecap Protective cap for ordinary core cavity valve. 3.14 Large core cavity protective cap largecorechambervalvecap Protective cap for valve of large core cavity. 3.15 Cyclesvalvecap Protective cap for the valve of a power car. 3.16 Capsealing Protective cap with sealing effect (see Figure 18). 3.17 Capnon-sealing Protective cap without sealing effect (see Figure 19). 3.18 Wrench cap capscrewdriver A protective cap with the function of loading and unloading the valve core (see Figure 18). 3.19 Cap gasket swivelgasket Elastic pad for sealing cap (see Figure 18). 3.20 Swivelnut A fastener which is sleeved on the mouth body of the swing arm valve to connect the mouth body and the mouth seat (see Figure 10). 3.21 Adaptor The parts that connect the mouth holder and the mouth body (see Figure 20). 3.22 Rim nut The nut that fixes the valve on the rim (see Figure 3, Figure 5, Figure 7, Figure 8, Figure 14). 3.23 Spacer It is the part that plays the role of cushion in the assembly of valve, inner tube and rim (Figure 14). 3.24 Ringwasher A gasket with a circular shape (see Figure 1, Figure 5, Figure 6, Figure 7, Figure 8, Figure 11). 3.25 Bridge washer bridgewasher A gasket with a bridge shape (see Figure 4). 3.26 Rim gasket grommet Under the action of external force, it is pressed against the rim to obtain a sealed elastic cushion (see Figure 10, Figure 11, Figure 14, Figure 20). 3.27 O-ring Oring The section is a circular ring-shaped elastic ring (see Figure 3, Figure 10, Figure 12). 3.28 Valve core The valve core installed in the valve core cavity (see Figure 21, Figure 22). 3.29 Short core Under the action of the spring preload, the core seat gasket and the core body are in a closed state of the valve core (see Figure 21). 3.30 Longcore When the valve core cavity is not installed, the core seat gasket and the core body are in an unclosed state of the valve core (see Figure 22). 3.31 Large core cavity valve core coreforlargecorechamber Valve core for large core cavity valve. 3.32 Tubevalvecoreforcycles The valve core used for the inner tube valve of the power car (see Figure 23). 3.33 Core plug The parts in the valve core with the part where the core sealing ring or rubber tube is installed or the sealing part that matches the cone surface of the core cavity (see Figure 7, Figure 8, Figure 21, Figure 22). 3.34 Core seal plugwasher The core is matched with the conical surface in the core cavity of the valve to obtain a sealed elastic ring (see Figure 21 and Figure 22). 3.35 Corepin The rod-shaped metal parts in the center of the valve core (see Figure 21 and Figure 22). 3.36 Cupplunger The valve core parts connected with the core rod to hold the core seat gasket (see Figure 21 and Figure 22). 3.37 Core spring In the valve core, a coil spring that generates a pre-pressure between the core body, the core seat gasket and the core seat (see Figure 21, Figure 22). 3.38 Core spring bracket springcup The parts used to hold the core spring on the long valve core (see Figure 21). 3.39 Core cap swivel Install the valve core in the valve core cavity with threaded valve core parts (see Figure 21, Figure 22). 3.40 Plungerwasher The elastic cushion plays a sealing role between the core and the core seat (see Figure 21 and Figure 22). 3.41 Nutforholdencore Press-fit the valve core of the Liche inner tube into the cylindrical nut inside the mouth (see Figure 7 and Figure 8). 3.42 Rubbertubing It is installed on the core to keep the airtight between the valve core and the nozzle body and make the valve core have a one-way ventilating elastic tube (see Figure 7 and Figure 8). 3.43 Ejectorpin Installed in the extension tube, used to open the valve core part of the valve core cavity (see Figure 16). 4 Tire valve position, size terms and definitions 4.1 Corechamber The cavity of the valve that matches the valve core to ensure the ventilation and air tightness of the valve (see Figure 24). 4.2 Valvemouth The outer end surface of the valve core cavity (see Figure 24). 4.3 Flared counterbore The hole located in the upper part of the valve core cavity with a diameter larger than the major diameter of the core cavity thread (see Figure 24). 4.4 Core thread The thread used to install the valve core in the valve core cavity (see Figure 24). 4.5 Taperseat The part of the valve core cavity that cooperates with the valve core to obtain a seal (see Figure 24). 4.6 Recess In order to increase the annular space between the valve core cavity and the valve core core seat, a cylindrical hole is machined in the valve core cavity (see Figure 24). 4.7 Throat The cylindrical hole between the conical surface and the groove in the valve core cavity (see Figure 24). 4.8 Rubberbase Valve rubber cushion valverubbermat The rubber base of the rubber seat valve (see Figure 1, Figure 2, Figure 3, Figure 4, Figure 6). 4.9 Vent passage The vent hole located in the lower part of the core cavity in the inner cavity of the valve (see Figure 24). 4.10 Vulcanized positioning hole ottomoriffice The vent hole for positioning the nozzle body or nozzle seat when vulcanizing rubber seat (see Figure 1, Figure 2, Figure 8). 4.11 Core spring bracket support surface springcupseat The end surface of the valve core cavity used to support the long valve core core spring bracket and make the core spring generate pre-compression (see Figure 24). 4.12 Capthread The external thread used to install the protective cap on the valve (see Figure 24). 4.13 Bodythread The external thread on the mouth body that cooperates with the nut for pressing or fixing (see Figure 1, Figure 11). 4.14 TPMS connection thread TPMS snap type and compression type tubeless valve nozzle body used to connect or fix the internal thread or external thread of the TPMS transmitter (see Figure 14). 4.15 Empty slot undercut Undercut for machining threads. 4.16 Flats Two symmetrical parallel surfaces on the valve that can apply torque (see Figure 1). 4.17 Buffedsurface The bottom plane of the rubber seat polished to make the rubber seat and the inner tube bond firmly (see Figure 1, Figure 2, Figure 3, Figure 4, Figure 6, Figure 8). 4.18 Cut-offshoulder A boss on the mouth body or the mouth seat to prevent the rubber seat from overflowing the rubber during the vulcanization process (see Figure 2 and Figure 9). 4.19 Basebutton The elastic body below the cylindrical sealing surface of the snap-in valve (see Figure 9, Figure 13). 4.20 Indicatorring The buckle-type valve is a convex ring that serves as a sign and location when installed (see Figure 9, Figure 13). 4.21 TPMS valve identification ring TPMS valve indicatorring Located on the valve, it is used to identify the convex ring of the TPMS snap-in valve (see Figure 13). 4.22 Sealingsurface Cooperate with the seal (or rim) to obtain a sealed smooth surface (see Figure 3, Figure 9, Figure 10, Figure 13). 4.23 Pinhead Upsetting part of the top of the core rod (see Figure 21, Figure 22). 4.24 Core beam bridge The core cap has two parallel planes that can apply installation torque to the valve core (see Figure 21 and Figure 22). 4.25 Bendangle The angle of the mouth turned during the bending process (see Figure 1). 4.26 Supplementofbendangle Complementary angle of bending angle (see Figure 1). 4.27 Horizontalposition Any part where the angle between the linear part of the center line of the valve body and the bottom surface of the base is less than or equal to 10°. 4.28 Horizontal length a) The distance from the intersection of the extended line of the central axis of the horizontal part of the single-bent valve with the central axis of the base to the center of the mouth (see figure 1); b) The double-bend valve is from the intersection of the extension line of the central axis of the horizontal part and the central axis of the base when the valve is in a single bend state The distance from the center of the mouth (see Figure 1); c) The distance from the intersection of the center axis of the multi-bend valve base and the center axis of the first bend to the center of the mouth. 4.29 Verticalheight The vertical distance from the vertex of the first bend angle from the base to the bottom surface of the base (see Figure 1). 4.30 Lengthbeforebending Before the valve is bent, the distance from the mouth to the bottom of the base (see Figure 1).5 Other terms and their definitions5.1 Valve core installation torque instalingtorqueofcore The valve core is installed in the valve core cavity, and the torque applied by the screw thread is tightened. 5.2 Openpressure After the valve core is installed in the valve core cavity, it is inflated under the condition of no reverse pressure, so that the core seat gasket and the core body are opened. pressure. 5.3 Valvehole Rimhole The hole on the rim for installing the valve. 5.4 Valveslot Rimslot The groove on the rim for installing the valve. 5.5 Maximum pressureofuse The maximum pressure allowed by the valve. 5.6 Tire pressure monitoring systems tirepressuremon...... |
