External fixed faucets of bathtub
This standard is applicable to the external fixed faucet of bathtub installed on vertical wallboard, which is used as the water switch of the bathtub.
1 Structural type and dimension and performance parameters
1.1 Structural type
There is no general requirement for the structural type.
1.2 Structural dimension
1.2.1 The structural dimensions of the ordinary faucet of bathtub shall comply with those specified in Figure 1 and Table 1.
Figure 1
1——valve body; 2——valve cover; 3——valve stem; 4——hand wheel
Table 1
d B D L H
mm
G3/4” ≥20 ≥45 ≥120 ≤100
1.2.2 The structural dimensions of the mixed faucet of bathtub shall comply with those specified in Figure 2 and Table 2.
Figure 2
1——eccentric nozzle; 2——guard plate; 3——valve body;
4——hand wheel; 5——marking; 6——water outlet
Table 2
d B A L H
mm
G1/2″ ≥16
≥20 120~180 ≥120 ≤100
G3/4″
1.2.3 The structural dimensions of the mixed faucet of bathtub with shower head shall comply with those specified in Figure 3 and Table 3.
Figure 3
1——eccentric nozzle; 2——guard plate; 3——valve body; 4——hand wheel; 5——marking;
6——handle of distribution valve; 7——water outlet; 8——connecting hose; 9——shower head
Table 3
d B A L H L1 d1 d2
mm
G1/2″ ≥16 120~180 ≥120 ≤100 ≥1,500 G1/2″
G3/4″ ≥20
Note: A in Table 2 and Table 3 refers to the adjustable distance between the centerlines of two water inlet nozzles.
1.3 Performance parameters
1.3.1 Nominal pressure: 5.9×105Pa (6kgf/cm2).
1.3.2 Applicable temperature: not higher than 100℃.
1.4 Materials
1.4.1 The casting copper parts shall be made of materials meeting the requirements of GB 1176-74 Cast copper alloys and may also be made of other copper materials provided that the technical requirements are ensured.
1.4.2 Other metallic and non-metallic materials, if adopted, must meet corresponding standards.
2 Technical requirements
2.1 The castings shall be free of defects such as shrinkage cavity, crack and air hole, and the core sand attached to the inner cavity shall be removed.
2.2 The valve seat sealing surface shall be free from defects such as sand holes, and the surface roughness Ra shall not be greater than 3.2μm.
2.3 The hand wheel and distribution valve handle shall be able to operate smoothly and flexibly without jamming.
2.4 The handle wheel shall be tightly and firmly connected to the valve stem.
2.5 The cold and hot water markings shall be clear and connected firmly. Color markings: blue for cold water and red for hot water; characteristic markings: "C" for cold water and "H" for hot water. After the product is assembled, the hot water hand wheel shall be on the left.
2.6 Nickel and chromium plating on the visible surface of the product: the thickness of nickel plating shall not be less than 5μm, and that of chromium plating shall not be less than 0.1μm.
2.7 The electroplated surface shall be free of missed plating (including nickel exposed layer). The plating surface shall be bright and in silvery white with slight blue, in uniform color and luster, and have fine-grained and tight texture; the plating shall be well combined, without peeling or burning. The surface roughness Ra shall not be greater than 0.2μm.
2.8 The visible surface of the product shall be free of obvious defects such as scratches and sand holes.
2.9 The product shall be subjected to water pressure test for strength, and shall be free of deformation or leakage within the specified time.
2.10 The product shall be subjected to sealing performance test, and shall be free of leakage within the specified time.
2.11 The flow characteristic of the product shall meet the following requirements:
Under the water pressure of 2.0×104Pa (0.2kgf/cm2), the flow of the fully opened ordinary faucet of the bathtub is not less than 0.2L/s.
Under the water pressure of 1.5×104Pa (0.15kgf/cm2), the flow of mixed faucet of the bathtub is not less than 0.2L/s when single valve is fully opened and not less than 0.3L/s when double valves are fully opened.
Under the water pressure of 2.5×104Pa (0.25kgf/cm2), the flow of the shower head is not less than 0.1L/s when single valve is fully opened and not less than 0.15L/s when double valves are fully opened.
3 Test method
3.1 For visual inspection, the distance is 500mm and the illuminance is 100~200lx. Any amplification instrument shall not be used.
3.2 The surface roughness of valve seat sealing surface shall be inspected by comparison with "surface roughness standard block".
3.3 Visual inspection is conducted for 2.1, 2.2, 2.5 and 2.8, and hand feeling inspection is conducted for 2.3 and 2.4.
3.4 The plating thickness shall be inspected according to JB 2115-77 Test method for metal cladding - Timing fluid flow method and JB 2116-77 Test method for metal cladding - Thin chromium plating drop method.
3.5 Inspection method for plating quality:
3.5.1 The appearance is inspected visually.
3.5.2 The surface roughness shall be inspected by comparison with "surface roughness standard block".
3.5.3 The bonding strength of the plating shall be inspected according to JB 2111-77 Test method for bond strength of metal cover layer, and the corrosion resistance shall be inspected according to JB 2109-77 Acetic acid salt spray test method.
3.6 Hydraulic test
Take the clean water at normal temperature as the medium, and introduce the pressure from the threaded end of the pipe for at least 60s with the pressure unchanged. During the test, the valve shall be closed by hand, without using other auxiliary tools.
3.6.1 The strength test shall be conducted at water pressure of 8.8×105Pa (9kgf/cm2). Inspect whether there is deformation or leakage at the compressed part. The test may be conducted on a single part.
3.6.2 The sealing performance test shall be conducted at a water pressure of 5.9×105Pa (6kgf/cm2). Inspect whether there is leakage at each sealing surface and connecting surface.
3.7 Flow characteristic test is only used as type test with a duration of not less than 30s. There is no general requirement for the test equipment, but the water pressure near the faucet must be stable.
3.7.1 Ordinary faucet of bathtub: open the hand wheel to the maximum and measure the flow.
3.7.2 Mixed faucet of bathtub:
3.7.2.1 Connect it to the water source, and measure the flow when opening the cold and hot water hand wheels to the maximum respectively. Take the smaller value as the flow when opening single faucet.
3.7.2.2 Connect it to the water source, and measure the flow when opening both cold and hot water hand wheels to the maximum.
3.7.3 Mixed faucet of bathtub with shower head:
3.7.3.1 Connect it to the water source, close the shower head by distribution valve, and measure the flow when opening the cold and hot water hand wheels to the maximum respectively. Take the smaller value as the flow when opening single outlet of this faucet.
3.7.3.2 Connect it to the water source, close the shower head by distribution valve, and measure the flow when opening both cold and hot water hand wheels to the maximum.
3.7.3.3 Connect it to the water source, close the water outlet by distribution valve, and measure the flow when opening the cold and hot water hand wheels to the maximum respectively. Take the smaller value as the flow when opening single shower head of this faucet.
3.7.3.4 Connect it to the water source, close the water outlet by distribution valve, and measure the flow when opening both cold and hot water hand wheels to the maximum.
4 Inspection rules
GB 2828-81 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches) is adopted as the inspection scheme. See Annex A.
4.1 General inspection level II and double sampling scheme is adopted to inspect the samples according to technical indexes one by one. Based on the quantity of nonconforming products, if one of the inspection results is rejected, the batch is judged as rejected.
4.2 See Table 4 for the inspection items and acceptable quality level.
Table 4
Clause/sub-clause of this standard 2.9
2.10 2.2
2.3
2.4 (2.6)
(2.7) 2.1
2.5 2.8
(2.11)
Acceptable quality level (AQL), % 2.5 4 6.5
Note: "( )" in the table indicates that this test may be conducted if necessary.
4.3 The products of rejected batches shall not be submitted for inspection if they are not repaired by the manufacturer.
5 Marking, packaging, transportation and storage
5.1 The products shall be provided with qualification certificate and instructions for installation and use.
5.2 The product packaging surface shall be marked with the product name, specification, quantity, weight, manufacturer name and date of manufacture.
5.3 The product packaging shall ensure that the products are not damaged during normal transportation.
5.4 The product shall be protected from rain and moisture during transportation, and shall be handled with care.
5.5 The product shall be stored in a well-ventilated and dry room, and shall not be stored together with acid, alkali or other corrosive substances.
1 Structural type and dimension and performance parameters
2 Technical requirements
3 Test method
4 Inspection rules
5 Marking, packaging, transportation and storage
6 Others
Annex A (Informative) Inspection scheme
Additional explanation
UDC 645.68：683.565
GB
中华人民共和国国家标准
GB 5347-85
浴盆明装水嘴
External fixed faucets of bathtub
1985-09-02发布 1986-05-01实施
国家标准局 批准
中华人民共和国国家标准
UDC 645.68
：683.565
GB 5347-85
浴盆明装水嘴
External fixed faucets of bathtub
本标准适用于安装在垂直壁板的浴盆明装水嘴。该水嘴用作浴盆的水源开关。
1结构型式、尺寸和性能参数
1.1结构型式
结构型式不做统一规定。
1.2结构尺寸
1.2.1浴盆普通水嘴的结构尺寸应符合图1和表1的规定。
图1
1—阀体；2—阀盖；3—阀杆；4—手轮
表1
d B D L H
mm
G3/4” ≥20 ≥45 ≥120 ≤100
1.2.2 浴盆混合水嘴的结构尺寸应符合图2和表2的规定。
左 右
图2
1—偏心接管；2—护盘；3—阀体；4—手轮；5—标记；6—出水口
表2
d B A L H
mm
G1/2″ ≥16
≥20 120~180 ≥120 ≤100
G3/4″
1.2.3 带有淋浴喷头的浴盆混合水嘴的结构尺寸应符合图3和表3的规定。
左
图3
1—偏心接管；2—护盘；3—阀体；4—手轮；5—标记；
6—分配阀手柄；7—出水口；8—连接软管；9—淋浴喷头
表3
d B A L H L1 d1 d2
mm
G1/2″ ≥16 120~180 ≥120 ≤100 ≥1500 G1/2″
G3/4″ ≥20
注：表2、表3中的A为两进水接管中心线间的可调节距离。
1.3性能参数
1.3.1公称压力：5.9×105Pa（6kgf/cm2）。
1.3.2适用温度：不大于100℃。
1.4材料
1.4.1铸铜零件的材料应符合GB 1176-74《铸造铜合金》的规定，也可以用保证技术要求的其它铜材制造。
1.4.2采用其它金属或非金属材料必须符合相应的标准。
2技术要求
2.1铸件目测不得有缩孔、裂纹、气孔等缺陷，内腔所附有的芯砂应清除干净。
2.2阀座密封面目测不得有砂眼等缺陷，表面粗糙度Ra不大于3.2μm。
2.3手轮、分配阀手柄动作应平稳、轻便、无卡阻。
2.4手轮与阀杆的连接应牢固，不得松动。
2.5冷、热水标记应清晰、连接牢固。采用颜色标记：冷水用蓝色，热水用红色；采用特征标记：冷水用“C”，热水用“H”。产品组装后，热水手轮应在左侧。
2.6产品可见表面镀镍铬：镀镍层厚度不小于5μm，镀铬层厚度不小于0.1μm。
2.7电镀表面不得有未镀覆到的地方（包括露镍层）。镀层表面应光亮，并呈略显蓝的银白色；色泽应均匀，组织应细致紧密；镀层应结合良好，不得有起皮、烧焦。表面粗糙度Ra不大于0.2μm。
2.8产品可见表面不得有明显的擦伤、划痕、砂眼等缺陷。
2.9产品应进行水压强度试验。在规定的时间内不得有变形或渗漏。
2.10产品应进行密封性能试验。在规定的时间内不得有任何渗漏。
2.11产品的流量特性应符合以下要求：
浴盆普通水嘴在2.0×104Pa（0.2kgf/cm2）水压下，最大开启时的流量不小于0.2L/s。
浴盆混合水嘴在1.5×104Pa（0.15kgf/cm2）水压下单阀最大开启时的流量不小于0.2L/s；双阀最大开启时的流量不小于0.3L/s。
淋浴喷头在2.5×104Pa（0.25kgf/cm2）水压下，单阀最大开启时的流量不小于0.1L/s；双阀最大开启时的流量不小于0.15L/s。
3试验方法
3.1目测的距离为500mm，照度为100~200 lx。不得借助任何放大仪器。
3.2阀座密封面表面粗糙度参照“表面粗糙度标准块”进行比较检查。
3.3 2.1，2.2，2.5，2.8采用目测检查，2.3，2.4采用手感检查。
3.4镀层厚度按J B 2115-77《金属覆盖层厚度检验方法计时液流法》和JB 2116-77《金属覆盖层厚度检验方法薄铬镀层点滴法》进行检查。
3.5镀层质量的检查方法：
3.5.1外观用目测。
3.5.2表面粗糙度参照“表面粗糙度标准块”中抛光类进行比较检查。
3.5.3镀层结合强度按JB 2111-77《金属覆盖层的结合强度试验方法》进行检查；耐腐蚀性按JB 2109-77《醋酸盐雾试验方法》进行检查。
3.6水压试验：
介质为常温清水，压力从管螺纹端引入，持续时间不少于60s。在持续时间内，压力保持不变。试验中应用手来关闭阀门，不得借助其它辅助工具。
3.6.1强度试验应用8.8×105P a（9 kgf/cm2）的水压进行。检查受压部位有无变形或渗漏。允许以单个零件进行。
3.6.2密封性能试验应用5.9×105 Pa（6 kgf/cm2）的水压进行。检查各密封面及各连接面有无渗漏。
3.7流量特性试验只作为型式试验。试验时间不少于30s。试验设备不作统一规定，但必须保证水嘴前临近点的水压稳定。
3.7.1浴盆普通水嘴：将手轮开启至最大，测得该时的流量。
3.7.2浴盆混合水嘴：
3.7.2.1接通水源，分别测定冷、热水手轮单独开启至最大时的流量。以两次流量中的小值作为该水嘴单开时的流量。
3.7.2.2接通水源，两手轮均开启至最大，测得双开时的流量。
3.7.3带有淋浴喷头的浴盆混合水嘴：
3.7.3.1接通水源，分配阀关闭淋浴喷头，分别测定冷、热水手轮单独开启至最大时的流量。以两次流量中的小值作为该水嘴出水口单开时的流量。
3.7.3.2接通水源，分配阀关闭淋浴喷头，两手轮均开启至最大，测得该水嘴出水口双开时的流量。
3.7.3.3接通水源，分配阀关闭出水口，分别测定冷、热水手轮单独开启至最大时的流量。以两次流量中的小值作为该水嘴淋浴喷头单开时的流量。
3.7.3.4接通水源，分配阀关闭出水口，两手轮均开启至最大，测得该水嘴淋浴喷头双开时的流量。
4检验规则
规定采用GB 2828-81《逐批检查计数抽样程序及抽样表（适用于连续批的检查）》作检验方案。见附录A。
4.1采用一般检查水平II，使用二次抽样方案，按技术指标逐条对抽样样品进行检查。按不合格品数计算，检查结果如有一条不合格，则该批即为不合格批。
4.2检查项目及合格质量水平见表4。
表4
本标准中条款 2.9
2.10 2.2
2.3
2.4 （2.6）
（2.7） 2.1
2.5 2.8
（2.11）
合格质量水平AQL，% 2.5 4 6.5
注：表中（ ）为在必要时可进行此项试验。
4.3判为不合格批的产品，制造厂未经返修，不得再次提交检验。
5标志、包装、运输、贮存
5.1产品应有合格证和安装使用说明书。
5.2产品包装表面应标明品名、规格、数量、重量、厂名及出厂日期。
5.3产品包装应保证产品在正常运输中不受损伤。
5.4产品在运输中应防止雨淋、受潮，搬运时应注意轻放。
5.5产品应贮存在通风良好、干燥的室内，不得与酸、碱及有腐蚀性的物品共贮。
6其它
产品的特殊要求按合同执行。
附录A
检验方案
（参考件）
根据GB 2828-81《逐批检查计数抽样程序及抽样表（适用于连续批的检查）》的有关内容摘编。
A.1符号及所代表的意义
AQL：合格质量水平；
N：批量；
n：抽样数；
d：不合格数；
Ac：合格判定数；
Re：不合格判定数；
1、2：抽样次数。
A.2检查和判定方法
第一次抽样检查，先从批量中随机抽取n1件样品进行检查，若d1≤Ac1时则该项指标判为合格，继续其它指标的检查；若d1≥Re1时，则该项指标判为不合格，该批产品为不合格，不予收货。若Ac1
