Wafer/ Lug Type Concentric Vulcanized Seat Butterfly Valve

• Customization: Available
• Driving Mode: Manual
• Connection Form: Wafer
• Model NO.: BWYH-00A
• Seal Form: Auto Sealed
• Valve Stem: Normal
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Casting
• Application: Industrial Usage, Water Industrial Usage
• Port Size: DN40-600 or 1.5′-24′
• Transport Package: Wooden Case or as Per Clint; S Requirement
• Specification: CE, SGS
• Trademark: Afcon
• Origin: Dezhou, Shandong Province
• Production Capacity: 20, 000 Sets/Month

Product Description

Wafer/ Lug Type Concentric Vulcanized Seat Butterfly Valve

Size: DN40-600

Body: GG25, GGG40,

Disc: CF8/ CF8M/ GGG40/ Al-Br

Seat: NBR/EPDM/PDFE /VITON

Color: Any color according to customer requirement

Working pressure: PN10/ 16

Flange standard: PN10/ 16/ ANSI150

Brief introduction of wafer type spline butterfly valve

1. Wafer type spline butterfly valve, designed to comply with MSS-SP-67, BS5155, and API609. Compatible with GB, DIN, BS, ANSI flanges. Face to face according to ISO 5752.

2. Characteristic of wafer type spline butterfly valve is to splice the rubber liner on the body, the strength more highly and the seal more reliably for the seat.

3. The spline is between the shaft and disc.

4. Available in size 1.5'-24'.

5. Available with handles, manual gear operators, and electric or pneumatic actuators

Part	Material	Code
Body	Cast Iron Ductile Iron Cast Steel	GG25 GGG40 WCB
Stem	Stainless Steel	SS416/SS431 SS304/SS316
Disc	Ductile Iron Stainless Steel Aluminium Bronze	GGG40 CF8/CF8M   C954/C958
Seat	Copollymer EPDM Nitrile Rubber Fluorine rubber	EPDM NBR VITON

Industrial Use

The butterfly valves are widely used in piping of chemical, food, medicine, paper making, water and electricity, shipbuilding, water supply and drainage, metallurgy and energy systems, and is available for regulating and closure devices in a variety of corrosive, non - corrosive gas, liquid, semi-liquid and solid powder pipelines and containers.

1. Performance Specification

Nominal Diameter (DN)		25(1")~600(24")	25(1")~600(24")	DN (inch)
Nominal Pressure (PN)		10	16	BAR
Test Pressure	Body	15	24
	Sealing	11	17.6
Working temperatureºC		-15ºC~+150ºC
Applicable Mediums		Fresh water, sewage, sea water, air, steam, food, drug, various oil, acid, alkali, salt, etc.

Note: Applicable temperature and mediums are depending on the materials of different valve seats, bodies, stems and discs, see table 1 and table 2:

Regular Material of the Main Parts (Table 1)

Body		Disc		Stem
Name	Code	Name	Code	Name	Code
Cast Iron	GG25	Electric-plated DI	GGG40+Ni	Stainless Steel	416/316
Ductile Iron(DI)	GGG40	AL-Bronze	C954/C958		431/17-4
AL-Bronze	C954/C958	Stainless Steel	CF8/CF8M
Stainless Steel	CF8/CF8M	Coating DI	GGG40+Nylon
Carbon Steel	WCB

Properties of Valve Seat (Table 2)

Seat		Applicable TemperatureºC	Applicable Medium
Name
HYPALON		-15ºC~+120ºC	Water, some kind of oil and moderate chemicals, ozone, fat, animal fat, several of solvents, high and low pressure steam are forbidden.
EPR		-15ºC~+121ºC	Ozone, strong and chemical oxidation, several of solvents, alcohol, acid and alkali, low pressure steam, air, water, heavy water, sewage, hot and cold water.
CR		-15ºC~+99ºC	Air, water, heavy water, oil, moderate chemicals, acids, ozone, fat, animal fat, several of solvents.
NBR		-15ºC~+82ºC	Water, sea water, air, gases, chemicals, alcohol, the non aromatic agent, kerosene, animal and plant oil, light grinding medium, shall not apply to phosphate series oil and extreme pressure additive oil.
DRC		-10ºC~+50ºC	Mainly suitable for semiliquid and solid powder medium, such as mud, coal slurry, cement powder, coal powder and other powder materials.
VITON		-15ºC~+135ºC	Water, sea water, sewage, alcohol, paraffin wax, oxygen, air, etc. High Chemical resistance, especially suitable for aliphatic fragrances in high temperature environment, and animal & plant oil with halogenated hydrocarbon acid. High and low pressure steam is forbidden.
EPDM	X9	-15ºC~+150ºC	Mainly applicable to the low pressure steam with high temperature, hot & cold water and heat pipes for disposable water treatment.
PTFE		-18ºC~+200ºC	Mainly applicable to strong acid, strong alkali and other corrosive medium.