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
中華人民共和國國家標準
GB 5347-85
浴盆明裝水嘴
External fixed faucets of bathtub
1985-09-02發布 1986-05-01實施
國家標準局 批準
中華人民共和國國家標準
UDC 645.68
：683.565
GB 5347-85
浴盆明裝水嘴
External fixed faucets of bathtub
本標準適用于安裝在垂直壁板的浴盆明裝水嘴。該水嘴用作浴盆的水源開關。
1結構型式、尺寸和性能參數
1.1結構型式
結構型式不做統一規定。
1.2結構尺寸
1.2.1浴盆普通水嘴的結構尺寸應符合圖1和表1的規定。
圖1
1—閥體；2—閥蓋；3—閥桿；4—手輪
表1
d B D L H
mm
G3/4” ≥20 ≥45 ≥120 ≤100
1.2.2 浴盆混合水嘴的結構尺寸應符合圖2和表2的規定。
左 右
圖2
1—偏心接管；2—護盤；3—閥體；4—手輪；5—標記；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 帶有淋浴噴頭的浴盆混合水嘴的結構尺寸應符合圖3和表3的規定。
左
圖3
1—偏心接管；2—護盤；3—閥體；4—手輪；5—標記；
6—分配閥手柄；7—出水口；8—連接軟管；9—淋浴噴頭
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為兩進水接管中心線間的可調節距離。
1.3性能參數
1.3.1公稱壓力：5.9×105Pa（6kgf/cm2）。
1.3.2適用溫度：不大于100℃。
1.4材料
1.4.1鑄銅零件的材料應符合GB 1176-74《鑄造銅合金》的規定，也可以用保證技術要求的其它銅材制造。
1.4.2采用其它金屬或非金屬材料必須符合相應的標準。
2技術要求
2.1鑄件目測不得有縮孔、裂紋、氣孔等缺陷，內腔所附有的芯砂應清除干凈。
2.2閥座密封面目測不得有砂眼等缺陷，表面粗糙度Ra不大于3.2μm。
2.3手輪、分配閥手柄動作應平穩、輕便、無卡阻。
2.4手輪與閥桿的連接應牢固，不得松動。
2.5冷、熱水標記應清晰、連接牢固。采用顏色標記：冷水用藍色，熱水用紅色；采用特征標記：冷水用“C”，熱水用“H”。產品組裝后，熱水手輪應在左側。
2.6產品可見表面鍍鎳鉻：鍍鎳層厚度不小于5μm，鍍鉻層厚度不小于0.1μm。
2.7電鍍表面不得有未鍍覆到的地方（包括露鎳層）。鍍層表面應光亮，并呈略顯藍的銀白色；色澤應均勻，組織應細致緊密；鍍層應結合良好，不得有起皮、燒焦。表面粗糙度Ra不大于0.2μm。
2.8產品可見表面不得有明顯的擦傷、劃痕、砂眼等缺陷。
2.9產品應進行水壓強度試驗。在規定的時間內不得有變形或滲漏。
2.10產品應進行密封性能試驗。在規定的時間內不得有任何滲漏。
2.11產品的流量特性應符合以下要求：
浴盆普通水嘴在2.0×104Pa（0.2kgf/cm2）水壓下，最大開啟時的流量不小于0.2L/s。
浴盆混合水嘴在1.5×104Pa（0.15kgf/cm2）水壓下單閥最大開啟時的流量不小于0.2L/s；雙閥最大開啟時的流量不小于0.3L/s。
淋浴噴頭在2.5×104Pa（0.25kgf/cm2）水壓下，單閥最大開啟時的流量不小于0.1L/s；雙閥最大開啟時的流量不小于0.15L/s。
3試驗方法
3.1目測的距離為500mm，照度為100~200 lx。不得借助任何放大儀器。
3.2閥座密封面表面粗糙度參照“表面粗糙度標準塊”進行比較檢查。
3.3 2.1，2.2，2.5，2.8采用目測檢查，2.3，2.4采用手感檢查。
3.4鍍層厚度按J B 2115-77《金屬覆蓋層厚度檢驗方法計時液流法》和JB 2116-77《金屬覆蓋層厚度檢驗方法薄鉻鍍層點滴法》進行檢查。
3.5鍍層質量的檢查方法：
3.5.1外觀用目測。
3.5.2表面粗糙度參照“表面粗糙度標準塊”中拋光類進行比較檢查。
3.5.3鍍層結合強度按JB 2111-77《金屬覆蓋層的結合強度試驗方法》進行檢查；耐腐蝕性按JB 2109-77《醋酸鹽霧試驗方法》進行檢查。
3.6水壓試驗：
介質為常溫清水，壓力從管螺紋端引入，持續時間不少于60s。在持續時間內，壓力保持不變。試驗中應用手來關閉閥門，不得借助其它輔助工具。
3.6.1強度試驗應用8.8×105P a（9 kgf/cm2）的水壓進行。檢查受壓部位有無變形或滲漏。允許以單個零件進行。
3.6.2密封性能試驗應用5.9×105 Pa（6 kgf/cm2）的水壓進行。檢查各密封面及各連接面有無滲漏。
3.7流量特性試驗只作為型式試驗。試驗時間不少于30s。試驗設備不作統一規定，但必須保證水嘴前臨近點的水壓穩定。
3.7.1浴盆普通水嘴：將手輪開啟至最大，測得該時的流量。
3.7.2浴盆混合水嘴：
3.7.2.1接通水源，分別測定冷、熱水手輪單獨開啟至最大時的流量。以兩次流量中的小值作為該水嘴單開時的流量。
3.7.2.2接通水源，兩手輪均開啟至最大，測得雙開時的流量。
3.7.3帶有淋浴噴頭的浴盆混合水嘴：
3.7.3.1接通水源，分配閥關閉淋浴噴頭，分別測定冷、熱水手輪單獨開啟至最大時的流量。以兩次流量中的小值作為該水嘴出水口單開時的流量。
3.7.3.2接通水源，分配閥關閉淋浴噴頭，兩手輪均開啟至最大，測得該水嘴出水口雙開時的流量。
3.7.3.3接通水源，分配閥關閉出水口，分別測定冷、熱水手輪單獨開啟至最大時的流量。以兩次流量中的小值作為該水嘴淋浴噴頭單開時的流量。
3.7.3.4接通水源，分配閥關閉出水口，兩手輪均開啟至最大，測得該水嘴淋浴噴頭雙開時的流量。
4檢驗規則
規定采用GB 2828-81《逐批檢查計數抽樣程序及抽樣表（適用于連續批的檢查）》作檢驗方案。見附錄A。
4.1采用一般檢查水平II，使用二次抽樣方案，按技術指標逐條對抽樣樣品進行檢查。按不合格品數計算，檢查結果如有一條不合格，則該批即為不合格批。
4.2檢查項目及合格質量水平見表4。
表4
本標準中條款 2.9
2.10 2.2
2.3
2.4 （2.6）
（2.7） 2.1
2.5 2.8
（2.11）
合格質量水平AQL，% 2.5 4 6.5
注：表中（ ）為在必要時可進行此項試驗。
4.3判為不合格批的產品，制造廠未經返修，不得再次提交檢驗。
5標志、包裝、運輸、貯存
5.1產品應有合格證和安裝使用說明書。
5.2產品包裝表面應標明品名、規格、數量、重量、廠名及出廠日期。
5.3產品包裝應保證產品在正常運輸中不受損傷。
5.4產品在運輸中應防止雨淋、受潮，搬運時應注意輕放。
5.5產品應貯存在通風良好、干燥的室內，不得與酸、堿及有腐蝕性的物品共貯。
6其它
產品的特殊要求按合同執行。
附錄A
檢驗方案
（參考件）
根據GB 2828-81《逐批檢查計數抽樣程序及抽樣表（適用于連續批的檢查）》的有關內容摘編。
A.1符號及所代表的意義
AQL：合格質量水平；
N：批量；
n：抽樣數；
d：不合格數；
Ac：合格判定數；
Re：不合格判定數；
1、2：抽樣次數。
A.2檢查和判定方法
第一次抽樣檢查，先從批量中隨機抽取n1件樣品進行檢查，若d1≤Ac1時則該項指標判為合格，繼續其它指標的檢查；若d1≥Re1時，則該項指標判為不合格，該批產品為不合格，不予收貨。若Ac1
