Large Size worm gear butterfly valve

Item

Standard

NPS(inch)

Class(psi)

Body

Seal/Gasket 

Plate/Disc/Ball

Stem/Rocket

Driver

Temperature

Media

ANSI butterfly valve

GB/T12238/ API609/

MSS SP-67,

MSS SP-68

3-24”

300-600

B,CF8,CF8M,CF3,CF3M

A105+Rubber, A105+F6, Stainless steel

WCB+F4, WCB+stainless steel, WCB+F6, CF8, CF8M

1Cr13, 2Cr13, 1Cr18Ni9Ti,

0Cr18Ni12Mo2Ti,

Worm gear, Manual, Electric, Pneumatic

-20- 80°C,

-20 -150°C,

-40-425°C

Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc.

Butt welded butterfly valve

3-24”

300-600

Cast steel butterfly valve

3-24”

300-600

Electric butterfly valve

3-24”

300-600

Flanged butterfly valve

8-24”

150-300

Lug butterfly valve

8-24”

150-300

Pneumatic butterfly valve

8-24”

150-300

Rubber sealed butterfly valve

3-40”

150-600

Wafer butterfly valve

3-40”

150-600

Worm Gear butterfly valve

3-40”

150-600

Manual operated butterfly valve

3-10

150-300

Worm Gear Fluorine-lined butterfly valve

3-36

150-300

HT250,WCB,CF8,CF8M,CF3,CF3M

PTFE(F4), PCTFE(F3),FEP(F46),PO

WCB, CF8,CF8M, CF3,CF3M

Fluorine-lined wafer butterfly valve

1 1/2-48”

150

Structural

single eccentric structure, double eccentric structure, variable eccentric structure, three eccentric structure

Product Features

1. Simple structure, small volume, light weight, small installation dimension
2. Have two kinds of seal material: soft and hard, which can be used in various working conditions with good sealing performance and long life span
3. Anti-fire structure designed butterfly valve can prevent the expanding of the accidental fire, once the soft sealing valve seat of the valve catches fire and damaged, the stainless steel seal ring will give play to make the valve keep emergency sealed.
4. Small driving force, convenient and quick operations.

The series of the butterfly valves can be applied to food, drink, medicine, chemical industry, water treatment of environmental protection, building water and gas supply or drainage, etc. Used for start/stop/adjust medium flow quantity.