Wafer Type Backed Seat Butterfly Valve

• Driving Mode: Manual
• Connection Form: Wafer
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Model NO.: BFV-WB10
• Working Temperature: Low Temperature (-100°C<T<-40°C)
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: BS/DIN/ANSI/JIS /GB .. No Standard
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Size: DN50-DN350
• Inch: 2"-48"
• Hts Code: 8481.80.40 90
• Disc: Di/CF8/CF8m/C95400
• Body Material: Cast Iron/Ductile Iron/Wcb/Stainles Steel
• Seat: NBR/EPDM/PTFE
• Shaft: Ss420/SS316/Ss410
• Delivery Time: Shipped in 15 Days After Payment
• Transport Package: in Plywood Case
• Specification: Dn15-Dn1200
• Trademark: xbfm/ OEM
• Origin: Zhejiang
• HS Code: 8481804090
• Production Capacity: 100000 PCS/Year

Product Description

Wafer Type Pinless Backed Seat Butterfly Valve
Wafer Type Centreline Butterfly Valve (without Pin)
Wafer Type Butterfly Valve
BS/DIN/ANSI/JIS Wafer Type Butterfly Valve

Product Feature

• Centerline structure, with pin on the through shaft or pinless double half shaft design.

• Disc has twoway bearing, no installation direction requirements.

• End flange can meet different connection standards at the same timeDN50mm_300mm.

• Holes for the end flange is drilling holesDN350mm_500mm.

• Backed replaceable seat with good performance and a longer working life.

• Square and short neck for lable use and cost saving.

• Easy installation, no need flange gasket.

 

Technical Parameters

Nominal diameter(mm)		25~500	25~500
Nominal pressure(Mpa)		1.0	1.6
Testing pressure	Shell(Mpa)	1.5	2.4
	Seal(Mpa)	1.1	1.76
Suitable temperature		-40°C~200°C
Suitable medium		Drinking water,sewage,seawater,food,medicines,gas,oil and acid

 

Main Raw Material

Body	Disc	Stem	Seat	Actuator
Cast iron	Plated ductile  iron	Stainless  steel	EPDM/NBR	lever
Ductile iron	CF8		WRAS-EPDM	gearbox and handwheel
Carbon steel	CF8M		Viton	Electric
Stainless steel	Aluminum bronze	customised	Silicon	Pneumatic
PS:1.Replaceable backed seat/PTFE seat 2. Pinless Nylon disc/Epoxy disc/PTFE disc

 

Reference Standard

Design standard		API 609
Testing standard		API 598
Top flange standard		ISO5211
End flange standard		DIN PN10 / PN16,ANSI 125# / 150#,BS4504 PN10 / PN16,JIS B2220 10K
Face to face standard		API 609,EN558-1 20 Series,BS5155,DIN3202 K1

 

Overall Dimension and Weight

 

Size	A	B	D	Top Flange	ΦE	Weight(kg)
DN25	142	90	29	F05	65	0.84
DN40	156	92	33	F05	65	1.29
DN50	189	126	43	F05	65	2.07
DN65	202	133	46	F05	65	2.68
DN80	238	152	46	F05	65	3.16
DN100	276	170	52	F07	90	4.90
DN125	296	181	56	F07	90	6.85
DN150	324	196	56	F07	90	7.85
DN200	398	238	60	F10	125	12.00
DN250	456	258	68	F10	125	18.50
DN300	535	300	78	F10	125	32.50

Size	A	B	D	Top Flange	ΦE	DIN PN10		DIN PN16		ANSI 150#		Weight(kg)
						4-Φd	ΦD	4-Φd	ΦD	4-Φd	ΦD
DN350	580	320	78	F10	125	4-22	460	4-26	470	4-28.4	476.2	41.30
DN400	665	356	102	F14	175	4-26	515	4-30	525	4-28.4	539.7	61.00
DN450	720	380	114	F14	175	4-26	565	4-30	585	4-31.8	577.8	79.00
DN500	790	420	127	F14	175	4-26	620	4-33	650	4-31.8	635.0	128.00

Why Choose US

We are a professional manufacturer and supplier of valves, pipes and fittings which are widely used for water, oil and gas pipe linesWe have been supplying the valves and fittings to Europe, Asia, Middle East countries and Amercian markets for 15 years
Our factory has obtained ISO9001, CE0035 and API approval certificates for our valves and fittings made of iron, steel and copper alloy with design to DIN, BS, ANSI, JIS standard we can also manufacture valves and fittings according to client's design.

We test leakage of each roll before braiding, then we cut 300mm and crimp it to test burst pressure after brading.

We use CNC Lathes Machine for end fittings production. Machine system, knife and inspection tools are all imported from Japan.

We use Techmaflex Crimping Machine which is imported from France. This machine has
accurate and stable performance for crimping because it is produced for PTFE hose crimping only.
Our service
We promise the quality for 24 months and also supply custom service
Long service life. Standing the test of thousands opening/closing operation.
Wide selection of materials, applicable for various media.
Our workshop 

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