Dq41f-40p low temperature flange ball valve

  All low-temperature valves of Shanghai Guangao Valve Manufacturing Co
, Ltd
are treated at low temperature, and the applicable temperature of common products is - 196 ℃ ~ + 80 ℃
With complete varieties and specifications and advanced production equipment, the company's professional spirit of seeking survival by quality and winning by excellence has been highly praised by the majority of users

I Principle of dq41f-40p low temperature ball valve:
Dq41f-40p low temperature forged steel ball valve is composed of valve body, bonnet, valve stem, plunger, sealing ring, handwheel and other pieces
When the hand wheel is rotated, the plunger is driven by the valve rod to make the inclined conical surface of the plunger top and the conical surface of the valve seat reciprocate and clutch, so as to complete the opening and closing of the valve
In the valve, interference fit is adopted between the plunger and the sealing ring
By adjusting the compression of the fixing bolts of the valve cover, the sealing ring is compressed, the inner ring tightly wraps the plunger, and the outer ring is close to the inner wall of the valve cavity
In this way, the radial component force generated on the sealing ring will depend on the fluid pressure, so as to ensure the tightness and eliminate external leakage
As the sealing ring adopts a new non-toxic sealing material with strong resilience and high durability, the sealing is reliable and durable
The conical sealing parts of the valve seat and plunger are made of high-quality corrosion-resistant materials, which can ensure the service life of the valve
The valve combines the non leakage advantages of the plunger valve and the quick opening and closing characteristics of the stop valve to become a new variety with novel structure and wide application
The opening and closing part of dq41 low-temperature ball valve is a sphere, which is driven by the valve rod and rotates 90° around the axis of the valve rod; Sports valves and low-temperature ball valves are divided into floating and fixed types
The products are suitable for cutting off or connecting in flammable, explosive and permeable media such as ethylene, liquid oxygen, liquid hydrogen, natural gas, liquefied gas and petroleum
When the medium temperature is lower than - 60 ℃, it can be lengthened on the neck, generally 250mm, or according to the actual working conditions
Taichen ultra-low temperature ball valve * high temperature can be used for - 196 ℃, and the material application range after cooling treatment: LCB = - 60 ℃, LC3 = - 120 ℃, CF8 = - 196 ℃

Dq41f-40p low temperature ball valve (low temperature long shaft ball valve)
II Product specification

nominal diameter	DN15-200mm
nominal pressure	PN4 0MPa
applicable media	liquid oxygen, liquid nitrogen, liquid argon, liquefied natural gas, liquid carbon dioxide, liquid propane, etc
applicable temperature	-196℃～+80℃

III Product model:   DQ41F-25P
DQ41F-10P DQ41F-16P DQ41F-25P DQ41F-40P DQ41F-64P
DQ41F-5K DQ41F-10K DQ41F-20K DQ41F-45K
DQ41F-150LB DQ41F-300LB DQ41F-600LB