English
You are here: Company » Goods » Instruments, Valves and Analyser » Control Valves » Regulatory valve eccentric rotary series CN8

loading

Regulatory valve eccentric rotary series CN8

The CN8 series eccentric rotary control valve features a spherical-crown plug design with an angular stroke motion, certified to TÜV ISO15848 in 2019. Its monoblock straight-flow body construction incorporates a double-eccentric sealing mechanism that minimizes operational wear. Delivering superior performance with lightweight design, low flow resistance, high capacity, wide turndown ratio, erosion/corrosion resistance, and reliable sealing, this valve excels in handling crystallizing fluids and slurry media – including high-viscosity crude oil, ash water, and coal slurry – making it ideal for demanding high-flow, large turndown ratio, and high-pressure differential applications.
Availability:
Quantity:
Inquire Add to Basket

facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
kakao sharing button
snapchat sharing button
telegram sharing button
sharethis sharing button

  • CN8


  • Integral Body & Straight-Through Flow Path Design – High flow capacity, wide adjustable ratio, simple flow path, and excellent anti-clogging performance.

  • Extended Seat Design – Protects the inlet flow path from erosion, significantly extending valve service life.

  • Split-Type Trim Design – The plug features a standardized geometry (non-cast), allowing flexible selection of corrosion/erosion-resistant materials for enhanced durability.

  • Monolithic Stem Construction – High rigidity ensures stable guidance and positioning, optimizing sealing and regulating performance.

  • Anti-Ejection Stem Shoulder – Safety-engineered to prevent stem disengagement.

  • Easy Installation & Maintenance – Simplified disassembly for efficient servicing.

  • Seat Leakage Class:

    • Metal-Seated Eccentric Rotary Control Valve: ANSI B16.104 Class IV

    • Soft-Seated Eccentric Rotary Control Valve: ANSI B16.104 Class VI



  • Nominal Diameter: DN25–DN300

  • Pressure Rating: PN16/25/40/63/100; Class 150 (PN20)/300 (PN50)/600 (PN110)

  • Operating Temperature: -46°C to +400°C

  • Flow Characteristic: Near-linear

  • Adjustable Ratio: 100:1

  • Leakage Class:

    • Metal Seated: ANSI B16.104 Class IV

    • Soft Seated: ANSI B16.104 Class VI

  • Body Materials: WCB/WCC/LCB/LCC; WC6/WC9; CF8/CF8M; 4A/5A, etc.

  • Trim Materials:

    • Metal Seating: 304+Sprayed Nickel (SN)/304+SN; 304+Stellite (ST)/304+ST

    • Soft Seating: 304+Hard Chrome Plated (HCr)/Reinforced PTFE (RTFE)

  • Packing Materials:

    • PTFE + Graphite V-Ring Packing

    • Flexible Graphite Ring Packing

    • Graphite + PTFE Braided Packing, etc.

Key Technical Notes:


1. Petrochemical Industry

  • Refinery units, catalytic cracking, hydroprocessing, and other high-temperature & high-pressure processes

2. Power Industry

  • Thermal Power Plants: Boiler feedwater & steam regulation (high-pressure conditions ≥PN40)

  • Nuclear Power Stations: Auxiliary system fluid control, low-leakage grade meeting nuclear standards

3. Metallurgy & Papermaking

  • Metallurgy: Blast furnace gas control (high-temperature resistance up to 425°C)

  • Papermaking: Pulp slurry regulation (anti-fiber-clogging design, wide adjustable Cv range)

4. Environmental Protection & Water Treatment

  • Wastewater Treatment: Compatible with solid-laden media (e.g., sludge pipelines)

  • Desulfurization Systems: Limestone slurry regulation (wear-resistant trim design)

5. LNG & Cryogenic Engineering

  • LNG Storage & Transportation: Sealing performance at -196°C ultra-low temperatures


Previous: 
Next: 
ASU TP Electronic kip Regulatory valves
Request to goods
Verify Code
Corresponding Product
KZ10 Intelligent Electric Actuators​​
KZ10 Intelligent Electric Actuators​​
Ball crane with a slanting rod of the GS series for the bottoms of tanks
GS Series Inclined Stem Tank Bottom Ball Valve
Three -eXocentric disk shutter of the BN series
BN1 series triple eccentric butterfly valve
Ball-shaped v-shaped series VN6
VN6 Series V-Port Ball Valve
Ball crane with a solid seal of the SN53-54 series (O-shaped)
SN53-54 Series Hard-Seated O-Type Ball Valve
Ball crane with a soft seal of the SN51-52 series (O-shaped)
SN51-52 Series Soft-Seated O-Type Ball Valve
Adjusting valve with the seals of the LN81W series
LN81W Series Bellows Seal Control Valve
Single -crop control valve of the LN82 series
LN82 Series Single-Seat Control Valve
Single -crop control valve of the LN81 series
Single -crop control valve of the LN81 series
Related News
2
4
5
7
1
6
8
3
Telephone
+7-776-170-8555
E-mail
info.5soverseas@supcon.com
Copyright © 2025 SUPCON Technology Co., Ltd. All rights are reserved.

Fast Connection

Panoramic exhibition hall

Products

Other links

Leave a Message
Contact us

Subscribe to the newsletter