不銹鋼人孔

人孔是安裝在儲罐頂上的安全應急通氣裝置，通常與防火器、機械呼吸閥配套使用，既能避免因意外原因造成罐內急劇超壓或真空時，損壞儲罐而發生事故，又有起到安全阻火作用，是保護儲罐的安全裝置，特別適用于貯存物料以氮氣封頂的拱頂常壓罐。具有定壓排放、定壓吸入、開閉靈活、安全阻火、結構緊湊、密封性能好、安全可靠等優點。

垂直吊蓋帶頸平焊法蘭人孔HG21520-95規定了碳素鋼、低合金鋼制垂直吊蓋帶頸平焊法人孔的型式、基本參數、尺寸、技術要求和有關使用規定。本標準適用于公稱壓力PN1.0~1.6MPa、工作溫度根據材料類別限定在表3-2規定范圍內的垂直吊蓋帶頸平焊法蘭人孔。

人孔是安裝在儲罐頂上的安全應急通氣裝置，通常與防火器、機械呼吸閥配套使用，既能避免因意外原因造成罐內急劇超壓或真空時，損壞儲罐而發生事故，又有起到安全阻火作用，是保護儲罐的安全裝置，特別適用于貯存物料以氮氣封頂的拱頂常壓罐。具有定壓排放、定壓吸入、開閉靈活、安全阻火、結構緊湊、密封性能好、安全可靠等優點。人孔分為緊急泄壓人孔、防爆阻火呼吸人孔、罐頂人孔、罐壁人孔和帶芯人孔等。人孔一般由304、316L不銹鋼鋼板或者碳鋼制作而成。

Stainless steel manhole

The manhole is a safety emergency ventilation device installed on the top of the storage tank. It is usually used in conjunction with a fire extinguisher and a mechanical breathing valve. It can prevent accidents from damaging the storage tank when a sudden overpressure or vacuum in the tank is caused by accidents. It has the function of safety and fire resistance, and is a safety device to protect the storage tank. It is especially suitable for the vaulted atmospheric tank whose storage material is topped with nitrogen. It has the advantages of constant pressure discharge, constant pressure suction, flexible opening and closing, safe fire resistance, compact structure, good sealing performance, safety and reliability.

Vertical sling cover with neck flat welding flange manhole HG21520-95 specifies the type, basic parameters, dimensions, technical requirements and related use regulations of carbon steel and low alloy steel vertical sling cover with neck flat welding manhole. This standard applies to manholes with vertical sling-neck flat-welded flanges with a nominal pressure of PN1.0~1.6MPa and a working temperature within the range specified in Table 3-2 according to the material category.

The manhole is a safety emergency ventilation device installed on the top of the storage tank. It is usually used in conjunction with a fire extinguisher and a mechanical breathing valve. It can prevent accidents from damaging the storage tank when a sudden overpressure or vacuum in the tank is caused by accidents. It has the function of safety and fire resistance, and is a safety device to protect the storage tank. It is especially suitable for the vaulted atmospheric tank whose storage material is topped with nitrogen. It has the advantages of constant pressure discharge, constant pressure suction, flexible opening and closing, safe fire resistance, compact structure, good sealing performance, safety and reliability. Manholes are divided into emergency pressure relief manholes, explosion-proof fire-resistance breathing manholes, tank top manholes, tank wall manholes and cored manholes. Manholes are generally made of 304, 316L stainless steel plate or carbon steel.

圖片信息：304不銹鋼衛生級人孔圖片價格生產廠家型號 

公司簡介：

安徽利勒潔凈設備科技有限公司是國內專業生產制造潔凈衛生級閥門管件，主要應用于食品機械行業、制藥機械行業、乳制品行業、釀酒飲料行業以及精細化工等行業高精度衛生級流體設備的專業生產廠家，產品規格齊全；產品主要有：

無菌隔膜閥，卡箍直通隔膜閥，三通隔膜閥，法蘭隔膜閥，氣動隔膜閥，U型隔膜閥，罐底隔膜閥 ；

無菌球閥，卡箍直通球閥，螺紋球閥，焊接球閥，氣動球閥，法蘭球閥，電動球閥；

衛生級蝶閥，焊接蝶閥，卡箍直通蝶閥，螺紋蝶閥，法蘭蝶閥，氣動蝶閥，電動蝶閥；

不銹鋼衛生泵，不銹鋼衛生級離心泵，不銹鋼衛生自吸泵，不銹鋼酒精防爆泵，衛生奶泵，衛生飲料泵；

止回閥，過濾器、呼吸器、換向閥、防混閥、安全閥；304不銹鋼衛生級人孔圖片價格生產廠家型號 

衛生級不銹鋼管件，焊接彎頭，快裝彎頭，不銹鋼三通，快裝三通，四通，真空彎頭，大小頭；

罐頂組件系列，不銹鋼儲罐，發酵罐，不銹鋼衛生級人孔，清洗球/器，視鏡燈，排氣閥等其它非標產品生產加工；

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Anhui Lile Clean Equipment Technology Co., Ltd. is a domestic professional manufacturer of clean and sanitary valve and pipe fittings, which are mainly used in the food machinery industry, pharmaceutical machinery industry, dairy industry, wine and beverage industry, and fine chemical industries. Manufacturer with complete product specifications; the main products are:

Aseptic diaphragm valve, clamp straight-through diaphragm valve, three-way diaphragm valve, flange diaphragm valve, pneumatic diaphragm valve, U-shaped diaphragm valve, tank bottom diaphragm valve;

Aseptic ball valve, clamp straight-through ball valve, threaded ball valve, welded ball valve, pneumatic ball valve, flanged ball valve, electric ball valve;

Sanitary butterfly valve, welded butterfly valve, clamp straight-through butterfly valve, threaded butterfly valve, flange butterfly valve, pneumatic butterfly valve, electric butterfly valve;

Stainless steel sanitary pump, stainless steel sanitary centrifugal pump, stainless steel sanitary self-priming pump, stainless steel alcohol explosion-proof pump, sanitary milk pump, sanitary beverage pump;

Check valve, filter, respirator, reversing valve, anti-mixing valve, safety valve; 304 stainless steel sanitary manhole picture price manufacturer model

Sanitary stainless steel pipe fittings, welded elbows, quick-installed elbows, stainless steel tees, quick-installed tees, crosses, vacuum elbows, large and small ends;

Tank top assembly series, stainless steel storage tanks, fermentation tanks, stainless steel sanitary manholes, cleaning balls/devices, mirror lights, exhaust valves and other non-standard products production and processing;

We serve you wholeheartedly.