Ammonia flow limiting valve

This valve is a safety protective valve, used in ammonia, liquid ammonia, oil and othernon corrosive medium. In the media in the pipeline flow rate exceeds the set value is too large to shut immediately, automatically shut down in the pipeline or attachments corrupted velocity, preventing the occurrence and expansion of the accident, usually installed in the tank or pipe export, import and export, the safety and reliability ofprotect downstream equipment. The driving means can be automatically connecting mode can be selected, flange, the structure can be used for current limiting type, the sealing structure can use soft seal, seal, pressure PN0.1-4.0Mpa, nominal diameter is DN25-200mm, the use of cast iron, cast steel materials, stainless steel. Due to the use of the scope of the valve is very wide, with a valve has different collocation in theoccasion with different conditions, if you are a non professional, welcome you to the company to inquire. The company has professional technical staff to serve you!

The material of main parts and standard

Parts name material

Valve body of WCB CF8 CF3M

Spring F304 F316L

In F304 F316L

O type Chuan Ding Qing rubber

Flange connection JB/T79-84

The length of the structure of GB 12221-89

Performance specification table

The nominal pressure of 2.5 Mpa

Strength test 3.8

The maximum operating temperature of -29-+80 DEG C

Closing velocity 3-5m-s

The normal velocity is less than or equal to 1.5m/s

"10 seconds off the time

Suitable medium: liquefied petroleum gas, ammonia, oil, natural gas and other non corrosive medium.

Main dimensions

The maximum flow DN-JIS L: L / Max.FIoW/min

Mm in

251 "160160

32 1-1/4 "200400

40 1-1/2 "200400

502 "240640

803 "2831600

1004 "3052500

1506 "4033300

2008 "5025900