Cast Iron Lug Butterfly Valve Metal Seat with Lever Operation

Basic Info

Model NO.	BLYH-00LT
Working Temperature	Normal Temperature (-40°C<T<120°C)
Material of Seal Surface	Soft Sealed
Valve Body	Casting
Application	Industrial Usage, Water Industrial Usage, Household Usage
Size	Dn32-Dn1200
Body	Gg25/Ggg40/Wcb
Stem	Ss416/Ss431/Ss304/Ss316
Disc	Ggg40/CF8/CF8m/C954/C958
Seat	EPDM/NBR/Viton
Transport Package	Plywood Cases
Specification	CE, ISO, SGS, FM, UL
Trademark	Afcon
Origin	Shandong, China
Production Capacity	3000PCS/Month

Product Description

Cast Iron Lug Butterfly Valve Metal Seat with Lever Operation

1. 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.