PBQ340F、PBQ340HEccentric hemispherical valve is a new product successfully developed by absorbing advanced technology at home and abroad. It is also an innovative product to fill the gap of domestic valve varieties. It is all domestic innovative products developed by referring to similar products in Germany on the premise of carefully weighing the advantages and disadvantages of various valves such as ball valve, butterfly valve, gate valve, etc Better than gate valve, globe valve and ball valve and other similar products. The eccentric hemisphere valve can be overlaid with different alloys according to the needs of users. The selection of bimetal seal ring can be used in different industrial departments which require strict sealing, such as wear resistance, corrosion resistance, high temperature resistance, etc.

It is by rotating the valve chain to make the valve unblocked or blocked. The ball valve has the advantages of light switch, small volume, large diameter, reliable sealing, simple structure and convenient maintenance. The sealing surface and spherical surface are often in closed state and are not easy to be eroded by medium, so they are widely used in various industries.

1、 Sealing pair (valve core, valve seat) - bimetallic, realizing hard sealing of metal spherical ring, fireproof and explosion-proof;
2、 The sealing of valve core and valve seat is spherical line contact, and zero leakage is realized by three-dimensional eccentricity;
3、 The valve core of the sealing pair has a compensation amount. When the valve is used for a long time, it is only necessary to loosen the limit bolt at the hand wheel side and turn it a little when closing, which can still achieve reliable sealing and prolong service life.
4、 It can screw off the compression sleeve, adjust or replace the valve seat, and the valve can still be used, so as to avoid the defect of scrapping the whole set after the sealing failure of many existing valves.
Industrial open valve hemispherical valve products are divided into general valve, pipeline valve, slurry valve, gas valve, Petrochemical valve, pulverized coal injection valve. There are three kinds of transmission modes: manual, pneumatic and electric. There are eight pressure levels (pn0.25 ~ 10.0MPa) and hundreds of specifications (40 ~ 1000). In petroleum, chemical industry, metallurgy, electric power, gas and other industries, it is the replacement product of gate valve, globe valve, Y-type valve and ball valve. It has been sold well in

PBQ340F、PBQ340HPerformance Specification for eccentric hemisphere valves

Pressure rating		Nominal pressurePN（MPa）
		0.25	0.6	1.0	1.6	2.5	4.0	6.4	10.0
Shell test pressure		0.38	0.9	1.5	2.4	3.8	6.0	9.6	15.0
Sealing test pressure	High pressure liquid sealing test	0.28	0.66	1.1	1.8	2.8	4.4	7.04	11.0
	Low pressure gas seal test	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
Applicable conditions		See "scope of application of various industries"
	Driving mode	Manual (3), electric (9), pneumatic (6), etc
	Nominal diameter	DN40～1000mm
Applicable codes	Design and manufacture	GB12237-89
		GB12221-89
	Flange size	GB9113-2000、Can also be according to user requirementsAPI6D-94
	Inspection and test

 

Universal valve: reasonable design, compact structure, small flow resistance, good sealing, easy and flexible operation, especially suitable for low-pressure pipe network of water, sewage, steam, pulp and other media. It can be equipped with electric and pneumatic devices, and can realize remote automatic operation. (water, steam, sewage, pulp, mud and other non corrosive media)
Special purpose for pulverized coal injection: it is an ideal equipment for controlling solid conveying such as pulverized coal injection of dust containing gas and particle fluid. It is widely used in various pipeline control of blast furnace pulverized coal injection, pulverizing system and dust removal system in metallurgical, mineral processing and electric power production processes. The sealing pair is made of Co-Cr-W alloy. After special heat treatment, the valve can resist erosion and wear resistance. At the same time, the eccentric spherical surface of the valve has the function of automatic compensation. Through adjusting the bolts on the worm gear, the sealing pair can still achieve the re sealing effect under certain degree of wear. (dusty gas, particulate fluid)
Special for petrochemical industry: for petrochemical industry, high pressure, high temperature, full of