上海減壓閥廠閔行區分廠
上海減壓閥廠閔行區分廠
YG13H內螺紋高靈敏度蒸汽減壓閥屬于先導活塞式減壓閥。由主閥和導閥兩部分組成。主閥主要由閥座、主閥盤、活塞、彈簧等零件組成。導閥主要由閥座、閥瓣、膜片、彈簧、調節彈簧等零件組成。通過調節調節彈簧壓力設定出口壓力、利用膜片傳感出口壓力變化，通過導閥啟閉驅動活塞調節主閥節流部位過流面積的大小，實現減壓穩壓功能。
| 公稱壓力（Mpa） | 1.0 | 1.6 |
| 殼體試驗壓力（Mpa）* | 1.5 | 2.4 |
| 密封試驗壓力（Mpa） | 1.0 | 1.6 |
| zui高進口壓力（Mpa） | 1.0 | 1.6 |
| 出口壓力范圍（Mpa） | 0.04-0.6 | 0.04-1.0 |
| 壓力特性偏差（Mpa）△P2P | GB12246-1989 | |
| 流量特性偏差（Mpa）P2G | GB12246-1989 | |
| zui小壓差（Mpa） | 0.05 | 0.07 |
| 滲漏量 | GB12245-1989 | |
| 零件名稱 | 零件材料 |
| 閥體 閥蓋 底蓋 | WCB |
| 閥座 閥瓣 | 2Cr13 |
| 缸套 活塞 | 鋁鐵青銅 |
| 膜片 | PH15-7Mo |
| 活塞環 | 對位聚苯 |
| 導閥座 導閥瓣 | 2Cr13 |
| 主閥彈簧 | 50CrVA |
| 導調主彈簧 | 50CrVA |
| 調節彈簧 | 60Si2Mn |
| DN | 25 | 32 | 40 | 50 | 65 | 80 |
| Cv | 4 | 6.5 | 9 | 16 | 25 | 36 |
Structure characteristic and use
YG13H internal thread high sensitivity steam pressure reducing valve belongs to the pilot piston type pressure-reducing valve. From the main valve and pilot valve composed of two parts. Main valve mainly comprises a valve seat, the main valve disc, piston, springs and other parts. Mainly by the pilot valve seat, valve, diaphragm, spring, adjusting springs and other parts. Adjusting the spring pressure by adjusting the outlet pressure setting, using changes in outlet pressure sensing diaphragm, through the pilot valve opening and closing the main valve piston adjusting throttle position for driving the flow area of the size, to achieve decompression function.
This series of products in the ordinary decompression valve base made the following improvements, increase the piston area, changing the throttle structure, changes the sealing form, improved pilot valve structure and adjust the spring form, which from the following aspects of improving the performance of the product.
1, improve the outlet pressure change sensing performance, improved sensitivity, greatly reduced due to the upstream pressure, flow changes caused by factors such as the pressure deviation.
In 2, to improve the streamline distribution, reduces noise.
3, improved sealing face structure, prolongs the life of sealing surface.
The products are mainly used in steam pipeline, applicable to the variation of the inlet pressure, the flow changes Steam pipeline.
The main technical parameters and performance index
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