閥門型號各單元含義與代號

　　Valve model, meaning and code of each unit

　　一 型號組成與順序

　　Model composition and sequence

　　通用工業閥門的型號通常由7個單元依次組成，分別表示：類型代號、驅動方式代號、連接形式代號、結構形式代號、密封面或襯里材料代號、壓力代號、閥體材料代號。各單元的含義與取值見下表與后續說明。

　　The model of general industrial valves is usually composed of 7 units in sequence, representing: type code, drive mode code, connection form code, structural form code, sealing surface or lining material code, pressure code, and valve body material code. The meanings and values of each unit are shown in the following table and subsequent explanations.

　　二 各單元代號對照

　　Comparison of Unit Codes

　　單元含義常見代號/規則

　　Common codes/rules for unit meanings

　　1 類型代號表示閥門類別見下表“類型代號表”

　　The type code represents the valve category, as shown in the "Type Code Table" in the table below

　　2 驅動方式代號表示啟閉動力方式見下表“驅動方式代號表”；安全閥、減壓閥、疏水閥及手輪直連的閥門此項常省略

　　The driving mode code indicates the opening and closing power mode, as shown in the table "Driving Mode Code Table" below; This item is often omitted for safety valves, pressure reducing valves, drain valves, and valves directly connected to handwheels

　　3 連接形式代號與管道或設備的接口形式見下表“連接形式代號表”

　　3. The connection form code and the interface form of the pipeline or equipment are shown in the table "Connection Form Code Table" below

　　4 結構形式代號同類閥門的內部結構差異用阿拉伯數字表示，取值隨閥門類型不同而不同（見各類結構形式表）

　　The internal structural differences of valves of the same type are represented by Arabic numerals, and the values vary depending on the type of valve (see various structural form tables)

　　5 密封面或襯里材料代號閥座密封副或襯里材料見下表“密封面/襯里材料代號表”

　　5. The material code for the sealing surface or lining of the valve seat is shown in the table "Sealing Surface/Lining Material Code Table"

　　6 壓力代號表示公稱壓力等級以MPa×10的數值表示；采用lb或K級時，在數值后加“lb”或“K”

　　6. The pressure code represents the nominal pressure rating in MPa × 10 values; When using lb or K grade, add "lb" or "K" after the value

　　7 閥體材料代號表示閥體材質見下表“閥體材料代號表”；特定PN條件下可省略

　　7. The valve body material code indicates that the valve body material is listed in the "Valve Body Material Code Table" below; Under specific PN conditions, it can be omitted

　　三 常用代號速查

　　Quick search for three commonly used codes

　　類型代號表

　　Type code table

　　閘閥：Z；截止閥：J；節流閥：L；球閥：Q；蝶閥：D；隔膜閥：G；旋塞閥：X；止回閥/底閥：H；安全閥：A；減壓閥：Y；疏水閥：S；排污閥：P；柱塞閥：U。

　　Gate valve: Z; globe valve: J; throttle valve: L; ball valve: Q; butterfly valve: D; diaphragm valve: G; plug valve: X; check valve/foot valve: H; safety valve: A; pressure reducing valve: Y; drain valve: S; drain valve: P; plunger valve: U.

　　驅動方式代號表

　　Driver mode code table

　　電磁動：0；電磁-液動：1；電-液動：2；蝸輪：3；正齒輪：4；錐齒輪：5；氣動：6；液動：7；氣-液動：8；電動：9。

　　Electromagnetic motion: 0; Electromagnetic hydraulic: 1; Electro hydraulic: 2; Worm gear: 3; Positive gear: 4; Cone gear: 5; Pneumatic: 6; Hydraulic: 7; Pneumatic hydraulic: 8; Electric: 9.

　　省略規則：安全閥、減壓閥、疏水閥及手輪直連結構（如手動閘閥、球閥、蝶閥等）此項常省略。

　　Omission rule: Safety valves, pressure reducing valves, drain valves, and handwheel direct connection structures (such as manual gate valves, ball valves, butterfly valves, etc.) are often omitted.

　　擴展：氣動常開/常閉：6K/6B；液動常開/常閉：7K/7B；防爆電動：9B。

　　Expansion: Pneumatic normally open/normally closed: 6K/6B; Hydraulic normally open/normally closed: 7K/7B; Explosion proof electric: 9B.

　　連接形式代號表

　　Connection form code table

　　內螺紋：1；外螺紋：2；兩不同連接：3；法蘭：4；焊接：6；對夾：7；卡箍：8；卡套：9。

　　Internal thread: 1; External thread: 2; Two different connections: 3; Flange: 4; Welding: 6; Clamp: 7; Clamp: 8; Card sleeve: 9.

　　密封面或襯里材料代號表

　　List of material codes for sealing surfaces or lining

　　錫基軸承合金（巴氏合金）：B；搪瓷：C；滲氮鋼：D；氟塑料：F；陶瓷：G；Cr13系不銹鋼：H；襯膠：J；襯鉛：Q；蒙乃爾：M；尼龍：N；滲硼鋼：P；奧氏體不銹鋼：R；塑料：S；橡膠：X；銅合金：T；硬質合金：Y。

　　Tin based bearing alloy (Babbitt alloy): B; Enamel: C; Nitrided steel: D; Fluoroplastic: F; Ceramic: G; Cr13 series stainless steel: H; Rubber lining: J; Lead lining: Q; Monel: M; Nylon: N; Boron infiltrated steel: P; Austenitic stainless steel: R; Plastic: S; Rubber: X; Copper alloy: T; Hard alloy: Y.

　　規則：除隔膜閥外，密封副材料不同時以硬度較低者表示；密封面材料與閥體相同時用W表示；隔膜閥以閥體表面材料表示。

　　Rule: Except for diaphragm valves, when the sealing secondary material is different, the one with lower hardness is indicated; When the sealing surface material is the same as the valve body, it is represented by W; Diaphragm valves are represented by the surface material of the valve body.

　　閥體材料代號表

　　Valve Body Material Code Table

　　灰鑄鐵：Z；球墨鑄鐵：Q；碳鋼：C；Cr13系不銹鋼：H；鉻鎳系不銹鋼：P；鉻鎳鉬系不銹鋼：R；鉻鉬系鋼：I；鉻鉬釩鋼：V；可鍛鑄鐵：K；鋁合金：L；銅及銅合金：T；塑料：S；鈦及鈦合金：Ti。

　　Gray cast iron: Z; ductile iron: Q; carbon steel: C; Cr13 stainless steel: H; chromium nickel stainless steel: P; chromium nickel molybdenum stainless steel: R; chromium molybdenum steel: I; chromium molybdenum vanadium steel: V; malleable cast iron: K; aluminum alloy: L; copper and copper alloys: T; plastic: S; titanium and titanium alloys: Ti.

　　省略規則：當PN≤1.6 MPa且閥體為灰鑄鐵，或PN≥2.5 MPa且閥體為碳素鋼時，閥體材料代號可省略；不銹鋼牌號如CF3/CF8/CF3M/CF8M可直接標在閥體上。

　　Omission rule: When PN ≤ 1.6 MPa and the valve body is made of gray cast iron, or PN ≥ 2.5 MPa and the valve body is made of carbon steel, the valve body material code can be omitted; Stainless steel grades such as CF3/CF8/CF3M/CF8M can be directly marked on the valve body.

　　四 結構形式代號說明

　　Explanation of Four Structural Form Codes

　　結構形式代號用阿拉伯數字表示，且不同閥門類別的數字含義不同。常見類別與示例：

　　The structural form code is represented by Arabic numerals, and the numerical meanings of different valve categories are different. Common categories and examples:

　　閘閥：明桿楔式單閘板1、明桿楔式雙閘板2、明桿平行式單閘板3、明桿平行式雙閘板4、暗桿楔式單閘板5、暗桿楔式雙閘板6等。

　　Gate valves: rising stem wedge single gate 1, rising stem wedge double gate 2, rising stem parallel single gate 3, rising stem parallel double gate 4, concealed stem wedge single gate 5, concealed stem wedge double gate 6, etc.

　　截止閥/節流閥：直通式1、角式4、直流式5、平衡直通式6、平衡角式7。

　　Globe valve/throttle valve: straight through type 1, angle type 4, straight through type 5, balanced straight through type 6, balanced angle type 7.

　　球閥：浮動球直通式1、L形三通4、T形三通5、固定球直通式7。

　　Ball valves: Floating ball straight through type 1, L-shaped tee 4, T-shaped tee 5, fixed ball straight through type 7.

　　止回閥：升降式直通1、立式2、角式3、旋啟式單瓣4、旋啟式多瓣5、蝶形止回7。

　　Check valve: lifting straight through 1, vertical 2, angle 3, swing single valve 4, swing multi valve 5, butterfly check 7.

　　安全閥：彈簧載荷微啟式1、彈簧載荷全啟式2、帶扳手全啟式4、帶散熱片全啟式0、不封閉微啟式7、不封閉全啟式8、杠桿式單杠桿2、杠桿式雙杠桿4、脈沖式9。

　　Safety valve: Spring loaded micro opening type 1, Spring loaded full opening type 2, Full opening type with wrench 4, Full opening type with heat sink 0, Non enclosed micro opening type 7, Non enclosed full opening type 8, Leverage type single bar 2, Leverage type double bar 4, Pulse type 9.

　　減壓閥：薄膜式1、彈簧薄膜式2、活塞式3、波紋管式4、杠桿式5。

　　Pressure reducing valve: diaphragm type 1, spring diaphragm type 2, piston type 3, bellows type 4, lever type 5.

　　疏水閥：浮球式1、浮桶式3、液體或固體膨脹式4、鐘形浮子式5、蒸汽壓力/膜盒式6、雙金屬片式7、脈沖式8、圓盤熱動力式9。

　　Drain valve: floating ball type 1, floating bucket type 3, liquid or solid expansion type 4, bell shaped float type 5, steam pressure/membrane type 6, bimetallic plate type 7, pulse type 8, disc thermal power type 9.

　　排污閥：液面連接排放-截止型直通1、截止型角式2、截止型直流5、截止型角式7、浮動閘板型直通8等。

　　Discharge valve: liquid level connection discharge cut-off type straight through 1, cut-off type angle type 2, cut-off type DC 5, cut-off type angle type 7, floating gate type straight through 8, etc.

　　五 壓力代號與省略規則

　　Five pressure codes and omission rules

　　壓力代號：以MPa×10表示，例如16代表PN1.6 MPa；若采用磅級（lb）或K級，在數值后加“lb”或“K”。當介質溫度超過425℃時，應標注工作溫度下的工作壓力代號。

　　Pressure code: expressed in MPa × 10, for example, 16 represents PN1.6 MPa; If using pound (lb) or K-grade, add "lb" or "K" after the value. When the temperature of the medium exceeds 425 ℃, the working pressure code at the working temperature should be marked.

　　省略規則：當PN≤1.6 MPa且閥體為灰鑄鐵，或PN≥2.5 MPa且閥體為碳素鋼時，閥體材料代號可省略；部分連接形式與結構形式在命名中常省略（如法蘭、閘閥“明桿/彈性/剛性/單閘板”、截止閥/節流閥“直通式”、球閥“浮動/直通式”、蝶閥“垂直板式”、隔膜閥“屋脊式”、止回閥“直通式/單瓣式”、安全閥“不封閉”等）。

　　Omission rule: When PN ≤ 1.6 MPa and the valve body is made of gray cast iron, or PN ≥ 2.5 MPa and the valve body is made of carbon steel, the valve body material code can be omitted; Partial connection forms and structural forms are often omitted in naming (such as flanges, gate valves with "rising stem/elastic/rigid/single disc", globe valves/throttle valves with "straight through", ball valves with "floating/straight through", butterfly valves with "vertical plate", diaphragm valves with "ridge", check valves with "straight through/single disc", safety valves with "non closed", etc.).

　　六 快速示例

　　Six Quick Examples

　　例1：Z41H-16C → 閘閥（Z）、手動省略（4=法蘭）、結構省略（1=明桿楔式單閘板）、密封面Cr13系不銹鋼（H）、PN1.6 MPa（16）、閥體碳鋼（C）。

　　Example 1: Z41H-16C → Gate valve (Z), manual omission (4=flange), structural omission (1=rising stem wedge single gate), sealing surface Cr13 stainless steel (H), PN1.6 MPa (16), valve body carbon steel (C).

　　例2：Q21F-40P → 球閥（Q）、手動外螺紋（2=外螺紋）、浮動直通（1）、密封面氟塑料（F）、PN4.0 MPa（40）、閥體鉻鎳系不銹鋼（P）。

　　Example 2: Q21F-40P → ball valve (Q), manual external thread (2=external thread), floating straight through (1), sealing surface fluoroplastic (F), PN4.0 MPa (40), valve body chromium nickel stainless steel (P).

　　例3：G6K41J-6 → 隔膜閥（G）、氣動常開（6K）、法蘭（4）、屋脊式襯膠（1J）、PN0.6 MPa（6）、閥體灰鑄鐵（省略）。

　　Example 3: G6K41J-6 → Diaphragm valve (G), Pneumatic normally open (6K), Flange (4), Roof type rubber lining (1J), PN0.6 MPa (6), Valve body gray cast iron (omitted).

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