標準編號:	GB/T 9124.1-2019
中文名稱:	鋼制管法蘭 第1部分：PN 系列
英文名稱:	Steel pipe flanges—Part 1:PN designated
中標分類:	J15    管路附件
行業分類:	GB    國家標準
ICS分類:	23.040.60 23.040.60    法蘭、管接頭及其連接件 23.040.60
發布機構:	國家市場監督管理總局 國家標準化管理委員會
發布日期:	2019-05-10
實施日期:	2019-12-1
標準狀態:	valid
替代舊標準:	GB/T 9112-2010 鋼制管法蘭　類型與參數 GB/T 9113-2010 整體鋼制管法蘭 GB/T 9114-2010 帶頸螺紋鋼制管法蘭 GB/T 9115-2010 對焊鋼制管法蘭 GB/T 9116-2010 帶頸平焊鋼制管法蘭 GB/T 9117-2010 帶頸承插焊鋼制管法蘭 GB/T 9118-2010 對焊環帶頸松套鋼制管法蘭 GB/T 9119-2010 板式平焊鋼制管法蘭 GB/T 9120-2010 對焊環板式松套鋼制管法蘭 GB/T 9121-2010 平焊環板式松套鋼制管法蘭 GB/T 9122-2010 翻邊環板式松套鋼制管法蘭 GB/T 9123-2010 鋼制管法蘭蓋 GB/T 9124-2010 鋼制管法蘭　技術條件
翻譯語言:	英文
文件格式:	PDF
中文字符數:	153000 字
翻譯價格(元):	5600.0
交付時間:	付款后 1 個工作日

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. GB/T 9124 consists of the following two parts under the general title Steel pipe flanges: ——Part 1: PN designed; ——Part 2: Class designated. This is Part 1 of GB/T 9124. This part is developed in accordance with the rules given in GB/T 1.1-2009. This part replaces the contents of PN designed flanges specified in GB/T 9112-2010 Types and parameters for steel pipe flanges, GB/T 9113-2010 Integral steel pipe flanges, GB/T 9114-2010 Hubbed screwed steel pipe flanges, GB/T 9115-2010 Butt-welding steel pipe flange, GB/T 9116-2010 Hubbed slip-on-welding steel pipe flanges, GB/T 9117-2010 Hubbed socket welding steel pipe flanges, GB/T 9118-2010 Loose hubbed steel pipe flanges with welding neck collar, GB/T 9119-2010 Slip-on-welding plate steel pipe flanges, GB/T 9120-2010 Loose plate steel pipe flanges with weld-neck collar and with weld ring neck, GB/T 9121-2010 Loose plate steel pipe flanges with weld-on collar, GB/T 9122-2010 Loose plate steel pipe flanges with lapped pipe end and pressed collar with long neck, GB/T 9123-2010 Steel pipe blank flanges and GB/T 9124-2010 Specification for steel pipe flanges; those of Class designated are incorporated in GB/T 9124, Part 2; the following main changes have been made with respect to GB/T 9112~9124-2010 series: ——the contents of PN designated flanges in Edition 2010 are supplemented and revised; ——the nominal pressure range of blind flange is extended from PN2.5~PN160 to PN2.5~PN400; ——the nominal size range of hubbed screwed flanges is changed from DN10~DN1000 to DN10~DN150; ——the outside diameter of steel pipe is revised, and the flange size is revised accordingly; ——some materials for flanges and their pressure-temperature ratings are supplemented; ——other relevant contents such as technical requirements are revised and improved; ——the method for determining the pressure-temperature rating is added. This part is redrafted by reference to but is not equivalent to ISO 7005-1: 2011 Pipe flanges - Part 1: Steel flanges for industrial and general service piping systems. This part was proposed by China Machinery Industry Federation. This part is under the jurisdiction of National Technical Committee on Pipelines and Accessories of Standardization Administration of China (SAC/T C237). The previous editions of this part are as follows: ——GB/T 9112~9124-1988, GB/T 9112~9124-2000, GB/T 9112~9124-2010. ? Introduction GB/T 9112~9124-2010 series are mainly divided into 13 standards according to different flange types and are integrated into 2 standards after revision according to nominal pressure series of flanges, i.e., GB/T 9124.1-2019 Steel pipe flanges - Part 1: PN designated and GB/T 9124.2-2019 Steel pipe flanges - Part 2: Class designated. ISO 7005-1: 2011 Pipe flanges - Part 1: Steel flanges for industrial and general service piping systems specifies the technical contents of steel pipe flanges such as terms and definitions, purchaser specification data, process, pressure limits, material, application considerations, other considerations for specification, installation guidance and information to be specified by the purchaser; compared with ISO 7005-1: 1992, ISO 7005-1: 2011 no longer specifies detailed technical parameters, but requires direct reference to CEN standard EN 1092-1 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges, and ASMEB 16.5 Pipe flanges and flanged fittings NPS 1/2 through NPS 24 metric/inch standard and ASMEB 16.47 Large diameter steel flanges NPS 26 through NPS 60 metric/inch standard. The flange sizes specified in this part are interchangeable with those in EN 1092-1: 2018, with basically same technical requirements. The following main changes have been made with respect to EN 1092-1: 2018: ——the writing format of this part is different from EN 1092-1: 2018; ——according to the requirements of users in China, the flange nominal size range is appropriately extended, for example, the flange sizes of DN20 and DN32 with nominal pressure range of PN160~PN400 are added; ——according to the requirements of users in China, the types and sizes of flanges with ring joint faces are added; ——the types and sizes of hubbed socket welding flanges are supplemented; ——EN 1092-1: 2018 includes only one outside diameter series of steel pipe, while this part includes two outside diameter series of steel pipe; wherein, DN10~DN2400 steel pipes in Series I are basically the same as but DN65 and DN125 are different from those in EN 1092-1: 2018, DN2600~DN4000 steel pipes in Series II are the same as those in EN 1092-1: 2018; ——the flange material is different from that in EN 1092-1: 2018. The flange materials with Chinese designations are adopted in this part, of which, the pressure-temperature ratings are determined by reference to EN 1092-1: 2018; ——the order contract data of flanges are added; ——the pipe schedule number and steel pipe wall thickness are added; ——the corresponding relationship between this part and EN 1092-1 in terms of code for flange type and code for sealing face is added. Steel pipe flanges - Part 1: PN designated 1 Scope This part of GB/T 9124 specifies the styles and parameters, types and sizes, technical requirements, test, inspection and acceptance, signs and designations, and supply requirements of PN designated steel pipe flanges and blind flanges. This part is applicable to steel pipe flanges and blind flanges with nominal pressure of PN2.5~PN400 and nominal size of DN10~DN4000. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 152.4 Fasteners - Counterbores for hexagon bolts and nuts GB/T 700 Carbon structural steels GB/T 711 Hot-rolled quality carbon structural steel plates and wide strips GB/T 712 Ship and ocean engineering structural steel GB/T 713 Steel plates for boilers and pressure vessels GB/T 1047 Pipework components - Definition and selection of nominal size GB/T 1048 Pipework components - Definition and selection of nominal pressure GB/T 1804 General tolerances - Tolerances for linear and angular dimensions without individual tolerance indications GB/T 3531 Low alloy steel plates for low temperature pressure vessels GB/T 4237 Hot rolled stainless steel plate, sheet and strip GB/T 7306.1 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads - Part 1: Parallel internal and taper external threads GB/T 9125 Fasteners for steel pipe flange joints GB/T 12228 General purpose industrial valves - Specification of carbon steel forgings GB/T 12229 General purpose industrial valves - Specification of carbon steel castings GB/T 12230 General purpose industrial valves - Specification of stainless steel castings GB/T 12716 Taper pipe threads with 60 degree GB/T 14976 Seamless stainless steel pipes for fluid transport GB/T 16253 Steel castings for pressure purposes JB/T 5263 Specification for steel casting for power station valves JB/T 7248 Technical specification for low temperature service steel casting for valves NB/T 47008 Carbon and alloy steel forgings for pressure equipment NB/T 47009 Alloy steel forgings for low temperature pressure equipment NB/T 47010 Stainless and heat-resisting steel forgings for pressure equipment 3 Styles and parameters 3.1 Nominal pressure 3.1.1 See GB/T 1048 for the definition of nominal pressure. 3.1.2 This part specifies the following 12 PN designated pressure grades: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320 and PN400. 3.2 Nominal size 3.2.1 See GB/T 1047 for the definition of nominal size. 3.2.2 This part specifies the following 39 DN designated specifications: DN10, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600, DN700, DN800, DN900, DN1000, DN1200, DN1400, DN1600, DN1800, DN2000, DN2200, DN2400, DN2600, DN2800, DN3000, DN3200, DN3400, DN3600, DN3800 and DN4000. 3.3 Outside diameter of Steel pipe Series I and Series II outside diameters of steel pipe are applicable to this part. The nominal size of PN2.5~PN160 pipe flanges and outside diameter of steel pipe shall meet the requirements of Table 1, and those of PN250~PN400 pipe flanges shall meet the requirements of Table 2. ? Table 1 Nominal size of PN2.5~PN160 and outside diameter of steel pipe In mm Nominal size/DN Outside diameter of steel pipe Series I Series II 10 17.2 14 15 21.3 18 20 26.9 25 25 33.7 32 32 42.4 38 40 48.3 45 50 60.3 57 65 73.0 76 80 88.9 89 100 114.3 108 125 141.3 133 150 168.3 159 200 219.1 219 250 273.0 273 300 323.9 325 350 355.6 377 400 406.4 426 450 457 480 500 508 530 600 610 630 700 711 720 800 813 820 900 914 920 1000 1016 1020 1200 1219 1220 1400 1422 1420 1600 1626 1620 1800 1829 1820 2000 2032 2020 2200 2235 2220 2400 2438 2420 2600 2642 2620 2800 2845 2820 3000 3048 3020 3200 3251 3220 3400 3454 3420 3600 3658 3620 3800 3861 3820 4000 4064 4020 Table 2 Nominal size of PN250, PN320 and PN400 and outside diameter of steel pipe In mm Nominal size/DN PN250 PN320 PN400 Outside diameter of steel pipe 10 17.2 17.2 17.2 15 21.3 21.3 26.9 20 26.9 26.9 33.7 25 33.7 33.7 42.4 32 42.4 42.4 48.3 40 48.3 48.3 60.3 50 60.3 63.5 76.1 65 76.1 88.9 101.6 80 101.6 101.6 114.3 100 127.0 133.0 139.7 125 152.4 168.3 193.7 150 177.8 193.7 219.1 200 244.5 244.5 273.0 250 298.5 323.9 — 3.4 Types and codes of flanges See Table 3 for types and codes of flanges. See A.1 for the corresponding relationship between this part and EN 1092-1 in terms of code for flange type.

Foreword i Introduction iii 1 Scope 2 Normative references 3 Styles and parameters 3.1 Nominal pressure 3.2 Nominal size 3.3 Outside diameter of Steel pipe 3.4 Types and codes of flanges 3.5 Types and codes of sealing faces 3.6 Flange types and their application scope 4 Type and size of flange 4.1 Size of flange sealing face 4.2 Type and size of flange 5 Technical requirements 5.1 Materials 5.2 Pressure-temperature rating 5.3 Size tolerance 5.4 Joint sealing face 5.5 Fasteners and gaskets 5.6 Welding end type and size 5.7 Machining and manufacturing 6 Test 7 Inspection and acceptance 7.1 Inspection 7.2 Acceptance 8 Marking and labeling 8.1 Marking 8.2 Labeling 9 Supply requirements Annex A (Informative) Corresponding relationship between this part and EN 1092-1 in terms of code for flange type and code for sealing face Annex B (Normative) Welding end type and size Annex C (Informative) Reference sizes of some flanges outside the scope of this part Annex D (Informative) Order contract data of flanges Annex E (Informative) Method for determination of pressure-temperature ratings in EN Annex F (Informative) Reference mass of flange Annex G (Informative) Pipe schedule number and steel pipe wall thickness Bibliography

鋼制管法蘭 第1部分：PN 系列 1 范圍 GB/T 9124的本部分規定了PN 系列鋼制管法蘭和法蘭蓋的類型與參數、型式與尺寸、技術要求、試驗、檢驗與驗收、標志與標記、供貨要求。 本部分適用于公稱壓力PN2.5～PN400、公稱尺寸DN10～DN4000的鋼制管法蘭和法蘭蓋。 2 規范性引用文件 下列文件對于本文件的應用是必不可少的。凡是注日期的引用文件，僅注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。 GB/T 152.4 緊固件 六角頭螺栓和六角螺母用沉孔 GB/T 700 碳素結構鋼 GB/T 711 優質碳素結構鋼熱軋厚鋼板和寬鋼帶 GB/T 712 船舶及海洋工程用結構鋼 GB/T 713 鍋爐和壓力容器用鋼板 GB/T 1047 管道元件 公稱尺寸的定義及選用 GB/T 1048 管道元件 公稱壓力的定義及選用 GB/T 1804 一般公差 未注公差的線性和角度尺寸的公差 GB/T 3531 低溫壓力容器用低合金鋼鋼板 GB/T 4237 不銹鋼熱軋鋼板和鋼帶 GB/T 7306.1 55°密封管螺紋 第1部分：圓柱內螺紋與圓錐外螺紋 GB/T 9125 管法蘭連接用緊固件 GB/T 12228 通用閥門 碳素鋼鍛件技術條件 GB/T 12229 通用閥門 碳素鋼鑄件技術條件 GB/T 12230 通用閥門 不銹鋼鑄件技術條件 GB/T 12716 60°圓錐管螺紋 GB/T 14976 流體輸送用不銹鋼無縫鋼管 GB/T 16253 承壓鑄鋼件 JB/T 5263 電站閥門鑄鋼件技術條件 JB/T 7248 閥門用低溫鋼鑄件技術條件 NB/T 47008 承壓設備用碳素鋼和合金鋼鍛件 NB/T 47009 低溫承壓設備用合金鋼鍛件 NB/T 47010 承壓設備用不銹鋼和耐熱鋼鍛件 3 類型與參數 3.1 公稱壓力 3.1.1 公稱壓力的定義見GB/T 1048。 3.1.2 本部分規定了公稱壓力用PN 標識的如下12個壓力等級： PN2.5、PN6、PN10、PN16、PN25、PN40、PN63、PN100、PN160、PN250、PN320、PN400。 3.2 公稱尺寸 3.2.1 公稱尺寸的定義見GB/T 1047。 3.2.2 本部分規定了公稱尺寸用DN 標識的如下39個規格： DN10、DN15、DN20、DN25、DN32、DN40、DN50、DN65、DN80、DN100、DN125、DN150、DN200、DN250、DN300、DN350、DN400、DN450、DN500、DN600、DN700、DN800、DN900、DN1000、DN1200、DN1400、DN1600、DN1800、DN2000、DN2200、DN2400、DN2600、DN2800、DN3000、DN3200、DN3400、DN3600、DN3800、DN4000。 3.3 鋼管外徑 本部分適用的鋼管外徑為Ⅰ、Ⅱ兩個系列。PN2.5～PN160管法蘭的公稱尺寸和鋼管外徑應符合表1的規定，PN250～PN400管法蘭的公稱尺寸和鋼管外徑應符合表2的規定。 表1 PN2.5～PN160公稱尺寸和鋼管外徑 單位為毫米 公稱尺寸 DN 鋼管外徑 系列 Ⅰ 系列 Ⅱ 10 17.2 14 15 21.3 18 20 26.9 25 25 33.7 32 32 42.4 38 40 48.3 45 50 60.3 57 65 73.0 76 80 88.9 89 100 114.3 108 125 141.3 133 150 168.3 159 200 219.1 219 250 273.0 273 300 323.9 325 350 355.6 377 400 406.4 426 450 457 480 500 508 530 600 610 630 700 711 720 800 813 820 900 914 920 1000 1016 1020 1200 1219 1220 1400 1422 1420 1600 1626 1620 1800 1829 1820 2000 2032 2020 2200 2235 2220 2400 2438 2420 2600 2642 2620 2800 2845 2820 3000 3048 3020 3200 3251 3220 3400 3454 3420 3600 3658 3620 3800 3861 3820 4000 4064 4020 表2 PN250、PN320、PN400的公稱尺寸和鋼管外徑 單位為毫米 公稱尺寸 DN PN250 PN320 PN400 鋼管外徑 10 17.2 17.2 17.2 15 21.3 21.3 26.9 20 26.9 26.9 33.7 25 33.7 33.7 42.4 32 42.4 42.4 48.3 40 48.3 48.3 60.3 50 60.3 63.5 76.1 65 76.1 88.9 101.6 80 101.6 101.6 114.3 100 127.0 133.0 139.7 125 152.4 168.3 193.7 150 177.8 193.7 219.1 200 244.5 244.5 273.0 250 298.5 323.9 — 3.4 法蘭類型及代號 法蘭類型及代號按表3的規定。本部分與EN1092-1法蘭類型代號的對應關系參見附錄A中A.1。 表3 法蘭的類型及代號 法蘭類型 整體法蘭 帶頸螺紋法蘭 對焊法蘭 法蘭類型代號 IF Th WN 法蘭簡圖 法蘭類型 帶頸平焊法蘭 帶頸承插焊法蘭 板式平焊法蘭 法蘭類型代號 SO SW PL 法蘭簡圖 法蘭類型 A型對焊環板式松套法蘭 B型對焊環板式松套法蘭 平焊環板式松套法蘭 法蘭類型代號 PL/W-A PL/W-B PL/C 法蘭簡圖 法蘭類型 管端翻邊板式松套法蘭 翻邊短節板式松套法蘭 法蘭蓋 法蘭類型代號 PL/P-A PL/P-B BL 法蘭簡圖 3.5 密封面型式及代號 法蘭的密封面型式及代號應符合表4的規定。本部分與EN1092-1法蘭密封面代號的對應關系參見附錄A 中A.2。 表4 密封面型式及代號 密封面型式 代號 簡圖 平面 FF 突面 RF 凹凸面 凸面 MF M 凹面 F 榫槽面 榫面 TG T 槽面 G O形圈面 O形圈凸面 OSG OS O形圈槽面 OG 環連接面 RJ 3.6 法蘭類型及適用范圍 法蘭類型及適用范圍見表5，表中“√”表示適用，“—”表示不適用。 表5 法蘭類型及適用范圍 法蘭 類型 公稱尺寸 DN 公稱壓力 PN 密封面型式及適用范圍 2.5 6 10 16 25 40 63 100 160 250 320 400 整體法蘭 (IF) 10 √ √ √ √ √ √ √ √ √ √ √ √ 1)平面 (FF)： PN2.5～PN40； 2)突面 (RF)： PN2.5～PN400； 3)凹凸面 (MF)：PN10～PN400； 4)榫槽面 (TG)：PN10～PN400； 5) O形圈面 (OSG)：PN10～PN40； 6)環連接面 (RJ)：PN63～PN400 15 √ √ √ √ √ √ √ √ √ √ √ √ 20 √ √ √ √ √ √ √ √ √ √ √ √ 25 √ √ √ √ √ √ √ √ √ √ √ √ 32 √ √ √ √ √ √ √ √ √ √ √ √ 40 √ √ √ √ √ √ √ √ √ √ √ √ 50 √ √ √ √ √ √ √ √ √ √ √ √ 65 √ √ √ √ √ √ √ √ √ √ √ √ 80 √ √ √ √ √ √ √ √ √ √ √ √ 100 √ √ √ √ √ √ √ √ √ √ √ √ 125 √ √ √ √ √ √ √ √ √ √ √ √ 150 √ √ √ √ √ √ √ √ √ √ √ √ 200 √ √ √ √ √ √ √ √ √ √ √ √ 250 √ √ √ √ √ √ √ √ √ √ √ — 300 √ √ √ √ √ √ √ √ √ √ — — 350 √ √ √ √ √ √ √ √ — — — — 400 √ √ √ √ √ √ √ — — — — — 450 √ √ √ √ √ √ — — — — — — 500 √ √ √ √ √ √ — — — — — — 600 √ √ √ √ √ √ — — — — — — 700 √ √ √ √ √ — — — — — — — 800 √ √ √ √ √ — — — — — — — 900 √ √ √ √ √ — — — — — — — 1000 √ √ √ √ √ — — — — — — — 1200 √ √ √ √ — — — — — — — — 1400 √ √ √ √ — — — — — — — — 1600 √ √ √ √ — — — — — — — — 1800 √ √ √ √ — — — — — — — — 2000 √ √ √ √ — — — — — — — — 帶頸螺紋法蘭 (Th) 10 — √ √ √ √ √ √ √ — — — — 1)平面 (FF)：PN6～PN40； 2)突面 (RF)：PN6～PN100 15 — √ √ √ √ √ √ √ — — — — 20 — √ √ √ √ √ √ √ — — — — 25 — √ √ √ √ √ √ √ — — — — 32 — √ √ √ √ √ √ √ — — — — 40 — √ √ √ √ √ √ √ — — — — 50 — √ √ √ √ √ √ √ — — — — 65 — √ √ √ √ √ √ √ — — — — 80 — √ √ √ √ √ √ √ — — — — 100 — √ √ √ √ √ √ √ — — — — 125 — √ √ √ √ √ √ √ — — — — 150 — √ √ √ √ √ √ √ — — — — 對焊法蘭 (WN) 10 √ √ √ √ √ √ √ √ √ √ √ √ 1)平面 (FF)：PN2.5～PN40； 2)突面 (RF)：PN2.5～PN400； 3)凹凸面 (MF)：PN10～PN400； 4)榫槽面 (TG)：PN10～PN400； 5) O形圈面 (OSG)：PN10～PN40； 6)環連接面 (RJ)：PN63～PN400 15 √ √ √ √ √ √ √ √ √ √ √ √ 20 √ √ √ √ √ √ √ √ √ √ √ √ 25 √ √ √ √ √ √ √ √ √ √ √ √ 32 √ √ √ √ √ √ √ √ √ √ √ √ 40 √ √ √ √ √ √ √ √ √ √ √ √ 50 √ √ √ √ √ √ √ √ √ √ √ √ 65 √ √ √ √ √ √ √ √ √ √ √ √ 80 √ √ √ √ √ √ √ √ √ √ √ √ 100 √ √ √ √ √ √ √ √ √ √ √ √ 125 √ √ √ √ √ √ √ √ √ √ √ √ 150 √ √ √ √ √ √ √ √ √ √ √ √ 200 √ √ √ √ √ √ √ √ √ √ √ √ 250 √ √ √ √ √ √ √ √ √ √ √ — 300 √ √ √ √ √ √ √ √ √ — — — 350 √ √ √ √ √ √ √ √ — — — — 400 √ √ √ √ √ √ √ — — — — — 450 √ √ √ √ √ √ — — — — — — 500 √ √ √ √ √ √ — — — — — — 600 √ √ √ √ √ √ — — — — — — 700 √ √ √ √ √ — — — — — — — 對焊法蘭 (WN) 800 √ √ √ √ √ — — — — — — — 1)平面 (FF)：PN2.5～PN40； 2)突面 (RF)：PN2.5～PN400； 3)凹凸面 (MF)：PN10～PN400； 4)榫槽面 (TG)：PN10～PN400； 5) O形圈面 (OSG)：PN10～PN40； 6)環連接面 (RJ)：PN63～PN400 900 √ √ √ √ √ — — — — — — — 1000 √ √ √ √ √ — — — — — — — 1200 √ √ √ √ — — — — — — — — 1400 √ √ √ √ — — — — — — — — 1600 √ √ √ √ — — — — — — — — 1800 √ √ √ √ — — — — — — — — 2000 √ √ √ √ — — — — — — — — 2200 √ √ √ — — — — — — — — — 2400 √ √ √ — — — — — — — — — 2600 √ √ √ — — — — — — — — — 2800 √ √ √ — — — — — — — — — 3000 √ √ √ — — — — — — — — — 3200 √ √ — — — — — — — — — — 3400 √ √ — — — — — — — — — — 3600 √ √ — — — — — — — — — — 3800 √ — — — — — — — — — — — 4000 √ — — — — — — — — — — — 帶頸平焊法蘭 (SO) 10 — √ √ √ √ √ √ √ — — — — 1)平面 (FF)：PN6～PN40； 2)突面 (RF)：PN6～PN100； 3)凹凸面 (MF)：PN10～PN100； 4)榫槽面 (TG)：PN10～PN100； 5) O形圈面 (OSG)：PN10～PN40 15 — √ √ √ √ √ √ √ — — — — 20 — √ √ √ √ √ √ √ — — — — 25 — √ √ √ √ √ √ √ — — — — 32 — √ √ √ √ √ √ √ — — — — 40 — √ √ √ √ √ √ √ — — — — 50 — √ √ √ √ √ √ √ — — — — 65 — √ √ √ √ √ √ √ — — — — 80 — √ √ √ √ √ √ √ — — — — 100 — √ √ √ √ √ √ √ — — — — 125 — √ √ √ √ √ √ √ — — — — 150 — √ √ √ √ √ √ √ — — — — 200 — √ √ √ √ √ — — — — — — 250 — √ √ √ √ √ — — — — — — 300 — √ √ √ √ √ — — — — — — 帶頸平焊法蘭 (SO) 350 — — √ √ √ √ — — — — — — 1)平面 (FF)：PN6～PN40； 2)突面 (RF)：PN6～PN100； 3)凹凸面 (MF)：PN10～PN100； 4)榫槽面 (TG)：PN10～PN100； 5) O形圈面 (OSG)：PN10～PN40 400 — — √ √ √ √ — — — — — — 450 — — √ √ √ √ — — — — — — 500 — — √ √ √ √ — — — — — — 600 — — √ √ √ √ — — — — — — 700 — — — √ — — — — — — — — 800 — — — √ — — — — — — — — 900 — — — √ — — — — — — — — 1000 — — — √ — — — — — — — — 帶頸承插焊法蘭 (SW) 10 — — — √ √ √ √ √ — — — — 1)平面 (FF)：PN16～PN40； 2)突面 (RF)：PN16～PN100； 3)凹凸面 (MF)：PN16～PN100； 4)榫槽面 (TG)：PN16～PN100； 5) O形圈面 (OSG)：PN16～PN40； 6)環連接面 (RJ)：PN63～PN100