Machined brass construction, durable plastic check modules, injection molded of acetyl resin, silicone discs, Buna 'N' seals, and stainless steel springs.

機(jī)加工黃銅結(jié)構(gòu)，耐用的塑料止回模塊最近最新中文字幕视频，注塑模制乙酰樹脂欧美老熟妇BBXXX视频，硅閥瓣，丁納橡膠密封一级黄色片日本，以及不銹鋼彈簧精品久久九九精品。

And a by-pass pipe with check valve is set between the inlet and outlet of circulating pump.

在循環(huán)泵進(jìn)出口之間設(shè)置帶止回閥的旁通管。

The paper to introduces the structure, main parameters and characteristics of integrated check valve.

介紹了插裝式止回閥的結(jié)構(gòu)91国内自拍视频在线观看，主要參數(shù)及特

If there is a decrease in the indicated value, Check Valve No.

如果只是的數(shù)值降低一区二区三区国产精品口爆吞精，說明止回閥1號有"泄漏"。

The valves are designed to provide fast check valve action and maximum service life.

這種閥門具有快速止回閥功能和最長的使用壽命欧美自拍日韩极速播放在线观看视频。

Types A and B have an integrated bypass check valve.

類型A和B有一個集成的旁路止回閥黄片无码久久。

Series 719 Double Check Valve Assembly shall be installed at each noted location.

系列719雙止回閥總成應(yīng)該安裝在每個標(biāo)注的位置上。

Diaphragm, Stop Seat and Vacuum Breaker to be molded from PERMEX Rubber Compound for Chloramine Resistance

采用PERMEX橡膠化合技術(shù)將隔膜片美女一级黄色视频免费看，止回閥閥座和真空斷路閥模壓在一個整體內(nèi)久久99久久99精品免视频，有利于防止氯胺的腐蝕

You must prevent circumfluenting to the boiler if the boiler closes chake valve. Rail pressure valve and buffer pistons in the act of gravity can realize the pressurize immediately to make the steam and condensate water not to circumfluent to the boiler in low pressure.

如果鍋爐沒有關(guān)閉截止止回閥，則必須防止回流到鍋爐上福利页，閥瓣壓鐵和緩沖活塞久久网精品aaa，在重力的作用下，能夠迅速實(shí)現(xiàn)密封国产孕妇作爱喷水视频，使得蒸汽和冷凝水即使在低壓下也不會回流到鍋爐里A级毛片18以上观看免费网站。

If the boiler don't close the check valve, then must prevent back flowing to the boiler, valve clack mould weight and buffering piston can seal under gravity action, they make steam and condensed water can't flow back to the boiler under the low air pressure.

如果鍋爐沒有關(guān)閉截止止回閥，則必須防止回流到鍋爐上成年免费人人操，閥瓣壓鐵和緩沖活塞https://igao39.com…，在重力的作用下，能夠迅速實(shí)現(xiàn)密封精品日韩妖精视频网站，使得蒸汽和冷凝水即使在低壓下也不會回流到鍋爐里人人爽人人爽人人A片。