SUPCON CN81 Series Eccentric Rotary Control Valve

CN8 series eccentric rotating valve is a valve core is on the surface of the spherical cap eccentric Angle of schedule control valve, the one-piece, straight type runner body structure, the rotary center of the valve core is not concentric with the axis of rotation, can reduce the seat wear and prolong service life. It has excellent stability, resistance to erosion and corrosion resistant, reliable seal and the advantages of large flow adjustable range. In addition, the series of control valve compact structure, output torque, action quick, steady, long service life and can be widely used in petroleum, chemical industry, coal chemical industry, electric power, metallurgy and other industrial control area and heavy load.

Product Description

Product Overview

The CN8 series eccentric rotary control valve is an eccentric angular stroke control valve with a ball crown face spool. It is TÜV ISO 15848 certified in 2019. One-piece, straight-through flow path body construction is used. The spool and seat seal are of double eccentric structure, with low wear during operation. It has the advantages of light weight, low flow resistance, high flow rate, high adjustable ratio, anti-scouring, anti-corrosion, reliable sealing, etc. These control valves are especially suitable for easy crystallization, slurry media, can be used for high viscosity impurities oil, gray water, coal slurry and other harsh conditions, suitable for large flow, adjustable ratio, large differential pressure occasions.


Performance advantages

One-piece, straight-through flow channel valve body structure, strong flow capacity, large adjustable ratio, simple flow channel, strong anti-blocking ability.

Extended seat design, the inlet flow path is fully protected from scouring and improves the service life of the valve.

Split spool design, the spool is a regular body, no need to cast, can choose any corrosion and scouring resistant materials, improve the valve's anti-scouring performance.

One-piece stem design, good stem rigidity, stable and reliable guiding and positioning, which is conducive to the sealing and regulating function of the spool.

Anti-fly-out design of the stem shoulder, safe and reliable.

Easy installation and disassembly, easy maintenance.

Seat leakage: hard seal eccentric rotary control valve meets ANSI B16.104 level IV; soft seal eccentric rotary control valve meets ANSI B16.104 level VI.

 Typical performance

Liaoning Baolai Bioenergy Co., Ltd, 1.2 million tons of solubilized deasphalted, 120,000 tons of tank, 200,000 tons of white oil plant control valve

Liaoning Baolai Bioenergy Co., Ltd, 300,000 tons of high aromatic environmental rubber plasticizer plant

Anhui Zhongpu Petroleum Energy Co., Ltd, Phase IV expansion project

Shanxi Yangmei Fengxi Quanji Energy Co., Ltd, coke oven gas comprehensive utilization production urea cogeneration LNG transformation and upgrading project

Ningbo Huatai Shengfu Polymeric Materials Co., Ltd, 700,000 tons of young hydrocarbon using 400,000 tons/year styrene plant regulating valve project


CN82 Series Eccentric Rotary Control ValveCN82 Series Eccentric Rotary Control ValveCN82 Series Eccentric Rotary Control ValveCN82 Series Eccentric Rotary Control Valve


Nominal SizeDN25~DN300
Pressure RatingPN16/25/40/63/100;CL150(PN20)/300(PN50)/600(PN110)
Operateing Temperature-46℃~450℃
CharacteristicsApproximate linear
Seat Leakage ClassANSI B16.104: IV、V、VI
Body MaterialWCB/WCC/LCB/LCC;WC6/WC9;CF8/CF8M;4A/5A etc.
Trim MaterialMetal:304+SN/304+SN;304+ST/304+ST;Soft:304+HCr/RTFE
Seal MaterialPTFE+ graphite v-shaped packing, flexible graphite ring packing, graphite +PTFE braided packing etc.

Nominal diameter: DN25/40/50/80/100/150/200/250/300

Pressure class: ANSI CL150/300; DIN PN16/25/40

Valve body and upper bonnet material: WCB, CF8, CF8M, etc.

Upper bonnet form: integral structure with valve body (-45℃~+400℃)

Packing type: PTFE + graphite V-shaped packing; flexible graphite ring packing; etc.

Flow characteristics: nearly linear

Adjustable ratio: 100:1

Allowable leakage: metal seal: ANSI B16.104 Class Ⅳ; soft seal: ANSI B16.104 Class Ⅵ