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1、閥門類型代號(hào)的Z、J、L、Q、D、G、X、H、A、Y、S分別表示：閘閥、截止閥、節(jié)流閥、球閥、蝶閥、隔膜閥、旋塞閥、止回閥、安全閥、減壓閥、疏水閥

1. Valve type codes Z, J, L, Q, D, G, X, H, A, Y and S are respectively expressed as gate valve, globe valve, throttle valve, ball valve, butterfly valve, diaphragm valve, cock valve, check valve, safety valve, relief valve and trap.

2、閥門的連接式代號(hào)1、2、4、6、7分別表示：1—內(nèi)螺紋、2—外螺紋、4—法蘭、6—焊接、7—對(duì)夾

2. Connecting type codes 1, 2, 4, 6 and 7 of valves are respectively expressed as: 1-internal thread, 2-external thread, 4-flange, 6-welding, 7-pair clamp.

3、閥門的傳動(dòng)方式代號(hào)9、6、3分別表示：9—電動(dòng)、6—?dú)鈩?dòng)、3—渦輪蝸桿

3. The transmission mode codes 9, 6 and 3 of the valves are: 9-electric, 6-pneumatic and 3-turbine worm, respectively.

4、閥體材料代號(hào)Z、K、Q、T、C、P、R、V分別表示：灰鑄鐵、可鍛鑄鐵、球墨鑄鐵、銅及合金、碳鋼、鉻鎳系不銹鋼、鉻鎳鉬系不銹鋼、鉻鉬釩鋼

4. Valve body material codes Z, K, Q, T, C, P, R and V are respectively expressed as gray cast iron, malleable cast iron, nodular cast iron, copper and alloy, carbon steel, Chromium-Nickel Stainless steel, chromium-nickel-molybdenum stainless steel, chromium-molybdenum-vanadium steel.

5、閥座密封或襯里代號(hào)R、T、X、S、N、F、H、Y、J、M、W分別表示：奧氏體不銹鋼、銅合金、橡膠、塑料、尼龍塑料、氟塑料、Cr系不銹鋼、硬質(zhì)合金、襯膠、蒙乃爾合金、閥門本體材料

5. Seat seals or lining codes R, T, X, S, N, F, H, Y, J, M and W are respectively expressed as austenitic stainless steel, copper alloy, rubber, plastics, nylon plastics, fluoroplastics, Cr stainless steel, cemented carbide, lining, Monel alloy, valve body material.

6、鑄鐵閥體不適合用于的場(chǎng)合有：易燃易爆流體；環(huán)境溫度低于－20℃場(chǎng)合；壓縮氣體；水蒸氣或含水量多的濕氣體。

6. Cast iron valve body is not suitable for the occasions: inflammable and explosive fluid; ambient temperature below - 20 C; compressed gas; water vapor or moisture content of wet gas.

法蘭密封面型式主要有：全平面(FF)、突面(RF)、凹(FM)凸(M)面、榫(T)槽(G)面、環(huán)連接面(RJ)等。

The main types of flange sealing surface are: full plane (FF), protruding surface (RF), concave (FM) convex (M) surface, tenon (T) groove (G) surface, ring connection surface (RJ), etc.