Ductile Iron Double Flange Butterfly Valve

• Customization: Available
• Media: Water
• Driving Mode: Worm Gear
• Connection Form: Flange
• Structure: Double-Eccentric Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Pn16
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: En593, BS5153
• Application: Water Industrial Usage
• Material: Ductile Iron&Strainless Steel
• Transport Package: Carton and Pallets
• Specification: DN50-DN1000
• Trademark: DVK, OEM
• Origin: China
• HS Code: 8481804090

Product Description

Features and benefits:

Vulcanized EPDM seat, low torque operated.

Streamlined SS304 disc, corrosion

resistant, lower water head lost.

ISO top flange as standard ISO 5211,

easy to assemble acuators.

Bi-directional shut-off seat.

Both gear and lever operated are available.
Both ON/OFF and modulating actuator operated are available. 

BFV7: Gearbox operation: DN200~DN600.
 

Applicable Standards:

Design standard:BS5155, EN593, API609

Connection standard:suit for BS EN1092-2

Top flange standard:ISO5211

Face to face standard:BS EN558-1 basic series 13

Pressure test standard:BS EN12266-1, API598
 

Technical Data:

Size: DN50~DN600(2″~24″)

Nominal pressure: PN 16

Temperature range: 0~80ºC

Suitable for: Water and neutral liquids.
 

Materials Specifications
No.	Component	Material
1	Body	Ductile Iron JS1040
2	Disc	Optionl: Ductile Iron with Epoxy Coating Option2: Stainless Steel, SS304 Option3: Al-Bronze
3	Stem	Stainless Steel SS420
4	Seat	Rubber, EPDM
5	0- ring	Rubber, EPDM

Flange Concentric Butterfly Valve
NO	Size	DN	A	B	L	L1	D	K	d	kg
1	2''	50	83	120	108	111	165	125	99	11
2	2/2''	65	93	130	112	115	185	145	118	13
3	3''	80	100	145	114	117	200	160	132	15
4	4''	100	114	155	127	130	220	180	156	17
5	5"	125	125	170	140	143	250	210	184	22
6	6''	150	143	190	140	143	285	240	211	27
7	8''	200	170	205	152	155	340	295	266	41
8	10"	250	198	235	165	168	405	355	319	56
9	12"	300	223	280	178	182	460	410	370	72
10	14"	350	312	310	190	194	520	470	429	86
11	16"	400	330	400	216	221	580	525	480	128
12	18"	450	353	422	222	227	640	585	548	165
13	20"	500	390	480	229	234	715	650	609	187
14	24"	600	495	562	267	272	840	770	720	270

Packing and shipping
Inner package: plastic bags                                  Product package: carton and pallets       
Delivery package: plywood cases available                    Delivery package: steel cases for premium option

About us
1. More than 20 years experience for valves, fittings, etc..
1. Professional R&D teams in Germany & China for HAVC and waterworks system.
2. Strict products inspection, SOP processing.
3. 6S management, higher quality material with higher price.
4. Quick feedback service, feedback within 24 hours.
5. All sales have more than 10 years experience on service.

Factory capacity

Welcome visit us

FAQ:
Question 1: Can you make OEM or ODM product?

DVK: Yes, if QTY attractive enough, we can create new mould for you, make bodies casting with your logo and your nameplate; if QTY not attractive enough, will be only with your nameplates or labels.

Question 2: How long is your delivery time?

DVK: General speaking, we have some stock for regular products, it is 1~2 weeks if the goods are in stock; if not in stock will be 4~8 weeks, depends on quantity.

Question 3: Do you provide free samples?  
DVK: If samples available in stock, yes, we could offer the free sample to you, but the air cost or courier cost will be on your account.

Question 4: What are your payment terms?

DVK: Order value less than 2000USD, 100% in advance. Order value more than 2000USD, 30% T/T in advance,balance before shipment. L/C available as well.