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Butterfly Valves

Posted at: Offers to Sell and Export | Posted on: Mon 29 Mar, 2010 9:47 am | | Angola | Costa Rica
 
butterfly valves
Products Photos CatalogButterfly Valves Photos Catalog



Butterfly Valves

A butterfly valve is a rotary motion valve. The main purpose of butterfly valve is


used to stop, regulate, and start fluid flow. This type of valve is easily and quickly operated because there is a 90 degree rotation of the handle which moves the disk from a fully closed to fully opened position. Butterfly valves are available in various sizes and materials. Infact, the larger sized butterfly valves are actuated by hand wheels which are connected to the stem through gears and they provide mechanical advantage at the expense of speed.

Parts of a butterfly valve:

The butterfly valve consists of only five main components. They are as follows:

Body: These valves have bodies that fit between two pipe flanges.

Disc: The disk is the flow closure member of a butterfly valve.

Stem: The stem of the butterfly valve is either a one-piece shaft or a two-piece, also known as split-stem design.

Seat: The seat of a butterfly valve utilizes an interference fit between the disk edge and the seat to close or to shutoff.

SOperator

Following the complete list:

+ D71X wafer soft seat butterfly valve

+ Flanged type three offset Butterfly valve

+ Lug type double offset Butterfly Valve

+ Tripe Eccentric Butterfly Valve

+ Sleeve Type Soft Sealing Plug Valve Acc.To ANSI

Uses of Butterfly valves:

Butterfly valves are considered to be the most economical and reliable type of pipe valves. Technological innovations combined with the simple design of the butterfly valve has made it a dependable, economical and flexible solution to a variety of industrial flow control needs. These valves have many advantages over other valves like gate, globe, plug, and ball valves, especially in large valve applications. The most obvious advantages are savings in weight, space, and cost. The maintenance cost is low because there are a less number of moving parts and there are no pockets to trap fluids. They are widely used in water distribution and waste water processing.

D71X wafer soft seat butterfly valve

Main dimension unit:mm

Note:the pressure rating is 1.0MPa or 1.6MPa for the valve.

Flanged type three offset Butterfly valve

Specification:

Structre type:double flanged three eccenticity

Design standard:API609-83

flange connection dimension:ANSI B 16.5

Flange drilling:ISO5211.

Structure length:ANSI B 16.10-1992

Pressure test:API 598-82

Materials

Body: WCB, CF8M

Dise: WCB, CF8M

Stem: 416Cr13Cr18Ni9Ti

Seal ring: 316, Fluorine plastic

Packing: Flesxible graphite, fluorine, plastic

Lug type double offset Butterfly Valve

Specification:

Structure type: Double eccentric wafer butterfly valve

Design standard: API609-83

flange connection dimension: DIN2501(DIN2534_ISO2084)

Structure length: DIN3202-K1, BS5155, ansi b16.10, mss sp-67

Pressure test: API 598

Materials:

Body: WCB, CF8M

Dise: WCB, CF8M

Stem: 416Cr13Cr18Ni9Ti

Packing: Flesxible graphite, fluorine, plastic

This kind of butterfly valve is widely utilized in foodstuff, pharmacy, chemical industry etc.and industrial environmental protection, water treatment, high building, water supply and drain tubing line open or close or adjusting medium.

Tripe Eccentric Butterfly Valve

Three-dimensional incline taper airproof seat 900 openinger cleaning triple eccentric, Bereled wedgedisc small friction and torque, self-clean manual, electric, pneumatit and gear operation etc.

a216wcb, a351 cf8, a351cf8m

a217lcb, a351 cf3, a351cf3m

Technical requirements

1.Design and manufacture comply to MSS SP 67-1997

2.Inspect and test comply to API 598

3.Face to face dimetion complies to BSS5155

4.Flanges comply to API 605

5.Pressure-remperature grade complies to ANSI B6.34

Trip eccentric butterfly valve:

Sleeve Type Soft Sealing Plug Valve Acc.To ANSI

Main structural features:

Bolt cover, plug 90 degree around.

Its sealing is realized by the sealing face around the sleeve.It has unique 360 degree metal edge for protection and fixing of the sleeve.There is no cavity in the valve for accumulation of medium.Metal edge provides the function of self-cleaning when the plug is rotated, applicable to the operation condition thatis glutinous and apt to smudge.Double direction.

Standards compliance:

Design and Manufacture: API 599, API 6D

Face to face(end to end): ANSI B 16.10

Flanged connection: ANSI B16.5

Test and inspection: API 598, API 6D

Main pants materials

Sleeve type soft sealing plug valve

Main parameter of the Butterfly valve

ANSI Butterfly valve:Class 150LB-300LB SIZE 2"~60"

DIN Butterfly valve:DN50-DN600, PN10~PN25

JIS Butterfly valve:DN50-DN600 10K~20K

BS Butterfly valve:DN50 -DN600, PN10~PN25

Design & Manufacture Standard:API600, API 6D, ASME B16.34, JISB2071, JISB2073, JISB2083, BS 1873, BS1414

Face to Face Standard: ASME B16.10, DIN 3202, BS2080, API 6D, JISB2002

End Connection Standard:ASME B16.11, ASME B1.20.1, ASME B16.5, DIN2543-2550, JISB2212-JISB2214

Test Standard:ISO5208, BS 6755, API598, API 6D, JISB2003

Material:WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, A105, LF2, F11, F22, F5, F304, F316, F304L, F316L

Type of Valves:

A valve is a piping components complete with operating system, able to control or shut off a fluid flow Valves are divided in:

Ball Valve, Butterfly Valve, Check Valve, Gate valve, Globe Valve, Plug Valve, Power Station Valves, Y-Type Strainer, New Products



Company Contact:

No member photo
Contact Name: Sam Xu
Company Name: GZY Pipe Fitting Industries
Email: Email
Tel: 8621 3378 0199
Fax: 8621 5107 9722
Street Address: No. 273 Siping Road,
Shanghai, 200081, China
Website: http://www.pipefitting.asia
Member name: pipetubefitting
Country: China-CN China
Member Since: 29 March 2010
Total Leads: 26 pipetubefitting Import Export Business Leads
Business focus: Steel Pipe, Pipe Fitting, Flange, Valves
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