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Wenzhou Goldtop Valve Co.LTD
Wenzhou Goldtop Valve Co.LTD

Gold top valve  located in Oubei Town, Wenzhou, China,where can make all kinds of precision balls,including top entry,metal seat and V type balls.On this base,our products range of floating,trunnion,Gate globe check valve ,butterfly valve ,etc.Surely we can design them by customer's special requirements.

Home ProductsAPI609 Butterfly Valve

PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve

PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve

  • PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve
  • PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve
PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve
Product Details:
Place of Origin: 中国
Brand Name: GOLD TOP
Certification: API609
Payment & Shipping Terms:
Minimum Order Quantity: 1pcs
Price: Negotiation
Packaging Details: Plywood Case
Delivery Time: 30days
Supply Ability: 100+pcs+30 days
Contact Now
Detailed Product Description
Design: API609 Materials: Carbon / Stainless / Ductile Cast Iron
Test: API598 Type: Centric Wafer
Working Temperature: 20°C ~ + 500°C Operating: Gear / Electric / Pneumatic
High Light:

concentric butterfly valve

,

metal to metal butterfly valve

Centric API609 Butterfly Valve PTFE Lined Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve

 

 

Centric Butterfly Valves

 

PTFE lined butterfly valve model IVTFE provides an optimum solution to the corrosion problems encountered by the chemical and process industries with conventional butterfly valves. The PTFE seat liner covers the entire wetted surface of the body and extends around the flange faces thus eliminating the possibility of any media contact with the body.

The fully circular backup elastomer and live loaded disc shoulder sealing ensures bubble tight closing of the valve with zero shaft leakageThe valve is adaptable for ON / OFF as well as control duty and can be fitted with actuators and accessories as required to meet the specific duty conditions.

The body is designed to fit between all international flange standards.

 
Features
 
1. Full PN 10 pressure rating for the entire range of valve sizes from 50 NB to 300 NB.

2. Bi-directional valve with sealing capability to hold rated shut off pressure in either direction.

3. Circularly moulded back up elastomer provides uniform contact pressure over the entire seat without losing shaft bore shape, ensuring bubble tight closure every time.

4. Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.

5. Self lubricated shaft bearings (PTFE coated stainless steel) for both drive end and non-drive end shaft ensures minimum bearing friction torque.

6. Live loaded disc shoulder sealing arrangement through pusher and disc springs in both top and bottom shaft bores, acting on PTFE liner ensures leak free mechanical stem seal.

7. Back up elastomer standardised in Viton to ensure excellent corrosion protection and maximum temperature resistance against media fumes and higher temperature.

8. Disc springs and fasteners standardised on corrosion resistant stainless steel to ensure long service.

A choice of exotic metallurgy for the disc, to meet any type of aggressive media.

9. Choice of liner materials of virgin PTFE or filled PTFE.

10. Low operating torque enables selection of smaller size actuators.

11. Perfect adaptability for conversion from manual to actuated operation due to standardised top flange.

 

​​Conformity to codes and standards:

1.Complies with the requirements of European Pressure Equipment Directive PED 97 / 23 / EC

2.Complies with the requirements of ATEX 94/9/EC

 

General design & manufacturing

API 609 category A

Valve face to face dimensions

ISO 5752 Tab 5 & API 609 category A

Top flange drilling

ISO 5211 part II

Valve inspection & testing

API 598 / ANSI / FCI - 70-2

Flange standard conformity

ANSI 150, DIN PN 10 / PN 16

 
Technical Specifications 1
Feature
Value
Construction type

Centric disc design butterfly valve with PTFE lined body

Body type & end connection

Wafer short, 2 piece body

Seat type

PTFE / GFT with viton backup ring

Size range

50 NB to 300 NB

Pressure rating

PN 10 (max)

Operating temperature range

-25C to 200C (Depending on MOC)

Seat leakage

Tight shut off (better than class VI as per ANSI / FCI 70-2)

Operation

Handlever for sizes up to 200 NB
Worm gearboxes for 50 NB to 300 NB
Pneumatic / Electric actuator operation - optional

Available material of construction (MOC)

Body/Disc

SGI / WCB / CF8 / CF8M / AB2 / Duplex / Super Duplex (1A-6A) / Hastelloy
Disc also available in Titanium

Seat

PTFE

Shaft

AISI 410 / SS 316 SH/ Monel/ UNS32760/ Titanium/ Hastelloy

Available material of construction (MOC)

Body/Disc

WCB / LCB/ CF8 / CF8M

Shaft

AISI 410 / SS 316 SH
Other materials available on request

 

Technical Specifications 2:

Nominal Size

DN(mm)

50~2000

Nominal Pressure

PN(MPa)

0.6

1

1.6

Test Pressure

Body

0.9

1.5

2.4

Seal

0.66

1.1

1.76

Air

0.6

0.6

0.6

Medium

Air, Water, sewage, Stem, Gas, Oil..etc

Parts Name

Material

Body

Cast Iron, Nodular Iron, Cast Steel, Stainless Steel, Bronze

Disc

Nodular Iron with Galv, Cast Steel, Stainless Steel, Bronze

Seal Ring

Rubber, PTFE

Stem

2Cr13,Stainless Steel

Packing

O Ring, Flexible Graphite

 

Seal Material

Seal Material

CR

NBR

EPDM

PTFE

SI

VITON

NR

PA

Max Temperature

82℃

93℃

150℃

232℃

250℃

204℃

85℃

93℃

Min Temperature

-40℃

-40℃

-40℃

-268℃

-70℃

-23℃

-20℃

-73℃

Suitable Service Temperature

0~+80℃

-20~+82℃

-40~+125℃

-30~+150℃

-70~+150℃

-23~+150℃

-20~+85℃

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PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve 0

 

 

Contact Details
Wenzhou Goldtop Valve Co.LTD

Contact Person: sales

Tel: +8613758447235

Send your inquiry directly to us
Wenzhou Goldtop Valve Co.LTD
Tel:86-577-86621729
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