品牌進(jìn)口液化氣減壓閥認(rèn)準(zhǔn)德國洛克   

一、進(jìn)口液化氣減壓閥維護(hù)：

1減壓閥應(yīng)存放在干燥的室內(nèi),通路兩端必須用盲板堵塞,不準(zhǔn)堆置存放.

2長期存放的減壓閥應(yīng)定期檢查,清洗污垢,在各運動部位及加工面上應(yīng)涂以防銹劑,防止生銹.

1. The pressure reducing valve shall be stored in a dry room, and both ends of the passage must be blocked with blind plates, and it is not allowed to stack

2. The pressure reducing valve stored for a long time shall be inspected regularly to clean the dirt, and each moving part and processing surface shall be coated with anti rust agent to prevent rusting

二、進(jìn)口液化氣減壓閥描述：

德國LOCKE洛克進(jìn)口液化氣減壓閥由主閥和導(dǎo)閥兩部分組成。液化氣減壓閥主閥主要由閥座、閥盤、活塞、缸套、彈簧等零件組成。液化氣減壓閥的導(dǎo)閥主要由閥座、閥瓣、膜片、彈簧、調(diào)節(jié)彈簧等零件組成。通過調(diào)節(jié)調(diào)節(jié)彈簧壓力設(shè)定出口壓力,利用膜片傳感出口壓力變化,通過導(dǎo)閥啟閉驅(qū)動活塞調(diào)節(jié)主閥節(jié)流部位過流面積的大小,實現(xiàn)減壓穩(wěn)壓功能。液化氣減壓閥屬于先導(dǎo)活塞式減壓閥主要用于氣體管路，適用于空氣、氮氣、氧氣、氫氣、液化氣、天然氣等氣體。工作溫度在-10°C.---80/150°C.之間。

The imported LPG pressure reducing valve of Locke lock in Germany consists of main valve and pilot valve. The main valve of LPG pressure reducing valve is mainly composed of valve seat, valve disc, piston, cylinder sleeve, spring and other parts. The pilot valve of LPG pressure reducing valve is mainly composed of valve seat, disc, diaphragm, spring, regulating spring and other parts. Set the outlet pressure by adjusting the spring pressure, use the diaphragm to sense the outlet pressure change, and drive the piston to adjust the size of the flow area of the throttle part of the main valve through the pilot valve opening and closing, so as to realize the pressure reducing and stabilizing function. Liquefied gas pressure reducing valve belongs to pilot piston type pressure reducing valve, which is mainly used in gas pipeline, applicable to air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases. The working temperature is between - 10 ° C. - 80 / 150 ° C.

三、進(jìn)口液化氣減壓閥選型：

1、根據(jù)使用工況確定減壓閥的類型和調(diào)壓精度。

2、根據(jù)所需最大輸出流量選擇合適的通徑。

3、根據(jù)使用工況需要確定進(jìn)口壓力和出口壓力。

4、根據(jù)使用介質(zhì)是否有腐蝕性、毒性等確定閥體材質(zhì)。

5、根據(jù)工況需求選擇合適的連接方式。

1. Determine the type of pressure reducing valve and pressure regulating accuracy according to the operating conditions.

2. Select the appropriate path according to the maximum output flow required.

3. The inlet pressure and outlet pressure shall be determined according to the operation conditions.

4. The valve body material shall be determined according to whether the medium used is corrosive or toxic.

5. Select the appropriate connection mode according to the working conditions.

四、進(jìn)口液化氣減壓閥技術(shù)參數(shù)和性能指標(biāo)：

1、公稱壓力(Mpa) 1.6-16.0Mpa

2、公稱通徑：DN15-500mm

3、殼體試驗壓力(Mpa)*   2.4 3.75   6.0 9.6 15.0   24

4、密封試驗壓力(Mpa) 1.6 2.5 4.0 6.4 10.0   16.0

5、最高進(jìn)口壓力(Mpa) 1.6 2.5 4.0 6.4 10.0   16.0

6、出口壓力范圍(Mpa) 0.1-1.0    0.1-1.6    0.1-2.5    0.5-3.5    0.5-3.5    0.5-4.5

7、壓力特性偏差(Mpa)△P2P   GB12246-1989

8、流量特性偏差(Mpa)P2G GB12246-1989

9、最小壓差(Mpa) 0.15   0.15   0.2 0.4 0.8 1.0

10、滲漏量 X/F(聚四氟乙稀/橡膠)：O Y(硬密封)：GB12245-1989

11、進(jìn)口液化氣減壓閥流量系數(shù)(Cv)

DN：15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 500

Cv： 1 2.5 4 6.5 9 16 25 36 64 100 140 250 400 570 780 1020 1500

1. Nominal pressure (MPA) 1.6-16.0mpa

2. Nominal diameter: dn15-500mm

3. Shell test pressure (MPA) * 2.4 3.75 6.0 9.6 15.0 24

4. Sealing test pressure (MPA) 1.6 2.5 4.0 6.4 10.0 16.0

5. Maximum inlet pressure (MPA) 1.6 2.5 4.0 6.4 10.0 16.0

6. Outlet pressure range (MPA) 0.1-1.0 0.1-1.6 0.1-2.5 0.5-3.5 0.5-3.5 0.5-4.5

7. Pressure characteristic deviation (MPA) △ P2P gb12246-1989

8. Flow characteristic deviation (MPA) p2g gb12246-1989

9. Minimum pressure difference (MPA) 0.15 0.15 0.2 0.4 0.8 1.0

10. Leakage X / F (polytetrafluoroethylene / rubber): o y (hard seal): gb12245-1989

11. Flow coefficient of imported LPG pressure reducing valve (CV)

DN：15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 500

Cv： 1 2.5 4 6.5 9 16 25 36 64 100 140 250 400 570 780 1020 1500

五、進(jìn)口液化氣減壓閥主要零件材料：

1、零件名稱：零件材料

2、閥體 閥蓋 底蓋：WCB/FCB*

3、閥座 閥盤：2Cr13/304*

4、缸套：2Cr13/25(鍍硬鉻)/304*

5、活塞：2Cr13/銅合金/銅合金*

6、活塞環(huán)：合金鑄鐵/對位聚苯*

7、導(dǎo)閥座 導(dǎo)閥桿：2Cr13/304*

8、膜片：1Cr18Ni9Ti

9、主閥 導(dǎo)閥彈簧：50CrVA

10、調(diào)節(jié)彈簧：60Si2Mn

11、密封墊(X/F型號)：橡膠/聚四氟乙稀

12、導(dǎo)閥體 導(dǎo)閥蓋：25/304*

1. Part name: part material

2. Body bonnet bottom cover: WCB / FCB*

3. Seat disc: 2Cr13 / 304*

4. Cylinder liner: 2Cr13 / 25 (hard chrome plating) / 304*

5. Piston: 2Cr13 / copper alloy / copper alloy*

6. Piston ring: alloy cast iron / para polyphenylene*

7. Guide valve seat guide valve rod: 2Cr13 / 304*

8. Diaphragm: 1Cr18Ni9Ti

9. Main valve guide valve spring: 50CrVA

10. Adjusting spring: 60Si2Mn

11. Gasket (x / F model): Rubber / polytetrafluoroethylene

12. Guide valve body guide valve cover: 25 / 304*