11 化学适用性 11 chemical applicability 　　(1) 根据玻璃钢管制造商提供的《玻璃钢纤维管的机械及耐化学腐蚀性能技术参数表》和管道所输送介质的成份、特性、温度、压力等, 确定管子的材料和固化剂系统。特别是输送油、气的管道必须采用环氧树脂管道;含CO2 超过3 %的流体输送, 无论温度高低, 必须采用全芳香胺固化的环氧树脂管道。 (1) according to the glass steel pipe manufacturers of glass fiber reinforced plastic tube of the mechanical and chemical corrosion resistance technology parameter table "and pipeline transport medium composition, characteristics, temperature, pressure, etc., to determine the pipe material and curing agent system. In particular, the pipeline of oil and gas must be piped with epoxy resin. With more than 3% of the liquid transport, the whole aromatic amine cured epoxy resin must be used, no matter the temperature. 　　(2) 强腐蚀介质的输送必须采用全芳香胺固化的环氧树脂管道。 (2) the transmission of strong corrosive medium must be made of epoxy resin cured with all-aromatic amine. 　　(3) 天然气或强腐蚀介质的输送管道内壁必须有一层至少0125mm 厚的全环氧树脂内衬, 以保证管道的化学耐受性。 (3) the inner wall of the conveying pipe of natural gas or strong corrosive medium must have a layer of at least 0125mm thick epoxy resin lining to ensure the chemical tolerability of the pipe. 　　(4) 原则上不允许对玻璃钢管进行大量加注缓蚀剂、酸洗或碱洗等高浓度化学制剂的作业。 (4) in principle, it is not allowed to do a lot of work of high concentration chemicals such as corrosion inhibitor, pickling or alkaline cleaning. 　　21 物理特性 21 physical characteristics 　　(1) 厂家标定的工作压力等于实际测试极限破坏压力与厂家选择的安全系数比值。玻璃钢管在产品样本中标定的额定压力是一个计算值, 而非测量值。同样破坏压力的管子由于生产厂家的安全系数(不得低于215) 取值不同, 会表现为不同的额定压力。因此, 只比较额定压力不能保证正确的选型。根据实际情况应以较高的安全系数、较好的材料等级来选型, 以保证长期安全使用, 这点是非常必要的安全保障措施。 (1) the factory calibration work pressure is equal to the actual test limit damage pressure and the safety coefficient ratio selected by the manufacturer. The rated pressure of the glass tube in the product sample is a calculated value, not the measured value. In the same way, the pressure pipe can be rated different due to the safety coefficient of the manufacturer (not less than 215). Therefore, only the rated pressure can not guarantee the correct selection. According to the actual situation, it should be selected based on higher safety coefficient and better material grade to ensure long-term safe use, which is a necessary safety safeguard measure. 　　(2) 设计时必须标定产品的安全系数及极限破坏内压, 同时可以要求玻璃钢管生产厂家出具第三方机构验证的破坏性压力测试报告及玻璃钢管出厂前必须经过115 倍额定工作压力的水压测试, 这是用户对自己最好的保护。 (2) when the design must be calibrated product safety factor and the limit damage internal pressure, also can ask the glass steel pipe manufacturers issued by third party verification of damaging pressure test report and glass steel pipe before delivery must be after 115 times the rated working pressure of hydraulic test, this is the best of the users for their protection. 　　(3) 由于玻璃钢材料作为脆性材料, 其接头连接强度非常关键, 其强度必须高于管体的机械强度, 因此接头的安全系数不得低于310 。 (3) because of the brittle material used as a brittle material, the connection strength of the connector is very critical, and its strength must be higher than the mechanical strength of the tube, so the safety coefficient of the connector should not be lower than 310. 　　(4) 污水输送管道可采用螺纹连接或承插粘结式连接。输油、输气管道只可采用承插粘结式连接, 以保证连接的气密性和强度。 (4) the pipe can be threaded or bonded. The oil and gas pipeline can only be connected with a socket bond to ensure the air tightness and strength of the connection. 　　31 温度特性 31 temperature characteristics 　　(1) 高温流体的输送必须采用高温下全芳香胺固化的环氧树脂管道。 (1) high temperature fluid delivery must be used in the epoxy resin pipeline with full aromatic amine curing at high temperature. 　　(2) 玻璃钢管的额定工作压力会随着工作温度的升高而有所下降。玻璃钢管道生产厂家应提供相应的温度、压力降对照表供设计使用。 (2) the rated working pressure of the glass tube will decrease with the increase of working temperature. The manufacturer should provide the corresponding temperature and pressure reduction table for the design and use. 　　(3) 玻璃钢管道的玻璃化温度必须明确标定。 (3) the vitrification temperature of the fiberglass pipe must be clearly calibrated. 　　如: 酸酐类固化玻璃钢管的玻璃化温度不得低于120 ℃, 芳香胺类固化玻璃钢管的玻璃化温度不得低于130 ℃。 Such as: acid anhydride curing glass steel pipe of the glass transition temperature is not less than 120 ℃, aromatic amine curing glass steel tube of the glass transition temperature is not less than 130 ℃. 　　41 连接方式 41 connection mode 　　(1) 法兰连接适用于玻璃钢管道与阀门、仪表、钢管及其它设备的连接。 (1) flange connection is suitable for the connection of glass steel pipe with valve, instrument, steel pipe and other equipment. 　　(2) 螺纹连接分为整体式螺纹连接和管箍式连接, 适用于小口径(DN200 以下) 管道的连接。 (2) threaded connections are divided into integral threaded connections and tubular hoops, which are suitable for connection of small diameter (less than DN200) pipes. 　　(3) 承插粘接适用于各种口径中、高压及复杂荷载的管道连接。 (3) socket adhesion is suitable for piping connections of various caliber, high pressure and complex loads.