BFW & BFL Series Butterfly Valves

Product Description:
Flow+ manufactures ductile iron resilient seated butterfly valves that are used extensively to regulate, stop and start fluid flow in pipelines. Committed to offering high-quality ductile iron resilient seated butterfly valves, these valves are primarily used in the pulp & paper, cement, fertilizer, pharmaceutical, mining, and food industries.

Manufactured using ASTM A395 ductile iron, the Flow+ ductile iron resilient seated butterfly valves are available in both wafer and lug body styles. Compatible with ASME 125/150 flanges, the Flow+ ductile iron resilient seated butterfly valves come with a 10 position locking lever on sizes 2” to 8” – gear operator available on request.

General Information:
• Maximum working pressure 285 PSI
• Available in sizes of  2″ to 12″
• Class 150
• Compatible with ASME 125/150 flanges
• Seats are field replaceable
• All valve bodies are epoxy coated
• Consult supplier for vacuum service
• Standard dead-end service for lug style with downstream flange removed
• Applicable standards: API609, MSS-SP67, tested per API598, CRN, Certified NSF/ANSI 61
• Locking lever handle with 10 position notch plate on sizes 2” to 8” – gear operator available on request

Features Include:
• ISO5211 mounting flange allows for easy actuation
• 17-4PH SS blow-out proof shafts
• A395 ductile iron body
• Bubble tight and bi-directional up to 285 PSI
• Two molded-in primary shaft seals on upper and lower seal bore I.D.
• Three additional shaft seals
• Two upper and one lower F4 bushing to provide additional support
• Set screws to maintain seat alignment on dead-end service
• Cartridge seat with phenolic backing seat provides stable seating surface, minimal seat wear and extends seat life

Style:
• Lug
• Wafer

Our Flow+ Ductile Iron Resilient Seated Butterfly Valves have the following Build of Materials and Product Specifications:

	Materials	ASTM
Body	Ductile Iron	A395
	Cast Iron*	A126-B
	Carbon Steel*	A216
	Stainless Steel*	A351-CF8M
Disc	Ductile Iron – Nickel Plated	A395-ENP
	316 Stainless Steel	A351-CF8M
	Aluminum Bronze*	A339-80-45-10
	Alloy 20*	A351-CN-7M
	Monel*	A494-M35
	Hastelloy C-276*	A494-CW-6M
Shaft	316 Stainless Steel	A182-F316
	416 Stainless Steel	A582
	17-4 Stainless Steel	A564
Bushing	Bronze*	B62
	PTFE	N/A
		Temperature (both in °F and °C)
Seat/Liner	Buna-N	0 – 180°F « (-18) – 80°C
	Viton	0 – 400°F « (-18) – 204°C
	PTFE Lined EPDM (125 PSI Rated Only)	0 – 250°F « (-18) – 204°C
	EPDM	(-30) – 275°F « (-35) – 135°C
	Hypalon*	(-20) – 200°F « (-30) – 90°C

Dimensions (Inches)
Size	A	B	C	D	n-d	E	L	W
2”	194	89	120.5	19	4-5/8-11UNC-2B	85.2	46.1	261.5
2.5”	206	98	139.5	19	4-5/8-11UNC-2B	98.6	49.1	261.5
3”	213	104	152.5	19	4-5/8-11UNC-2B	107.8	48.4	261.5
4”	232	123	190.5	19	8-5/8-11UNC-2B	72.9	55.3	261.5
5”	244	136	216	22	8-5/8-11UNC-2B	82.7	58.8	364
6”	257	147	241.5	22	8-5/8-11UNC-2B	92.4	59.1	364
8” Lever	246	184	298.5	22	8-5/8-11UNC-2B	114.2	64.1	364
8” Gear	332	184	298.5	22	8-5/8-11UNC-2B	114.2	64.1	300
10”	364	212	362	25	12-7/8-9UNC-2B	93.7	71.8	300
12”	414	255	432	25	12-7/8-9UNC-2B	111.8	81	300