Name: NIBCO Butterfly Valve WD-3510-8
Brand: NIBCO

NIBCO Butterfly Valve WD-3510-8

The NIBCO® wafer type butterfly valve is classified as a fire protection control valve that are Underwriters Laboratories listed and Factory Mutual approved for bubble-tight shutoff at 250 PSI water working pressure. Wafer valves are recommended for quick installation and removal from piping. The NIBCO® ductile iron butterfly valve is designed specifically to meet the rigorous requirements of automatic sprinkler systems. The unique EPDM molded-in seat liner with ductile iron disc provides bubble-tight shutoff at rated pressure. These valves are installed and monitored in fire protection applications where they remain in the normally closed position. A typical application would be fire pump test bypass lines. With the internal stem/disc geometric drive design there is no need for pins or bolts that may create leak paths or turbulence in the waterway. An extended neck allows for insulation up to 2 inches.

NIBCO Butterfly Valve WD-3510-8

OVERVIEW
Valve pressure rating 250 psi wwp Wafer style EPDM molded-in seat liner Designed for normally closed position monitoring Ductile iron disc Stainless steel stem with copper bushings Geometric drive Extended neck Operating mechanism: Manual gear operator Available with (suffix 8N) internal monitor switches UL/ULC Listed FM Approved UL Listed for Indoor and Outdoor Service Conforms to MSS SP-67, MSS SP-25 Size range 2-1/2″ to 8″

DIMENSIONS – WEIGHTS – QUANTITIES NIBCO BUTTERFLY VALVE WD-3510-8

Size		Dimensions
Size		A		B		C		D		E		F		G		H		I		J
In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.
2 1/2	65	2.9	74	5.62	143	5.12	130	5.88	149	3.25	83	7.36	187	13.63	346	1.81	46	1.94	49	2.91	74
3	80	3.17	81	6.12	155	5.5	140	6.12	155	3.38	86	7.6	193	14	356	1.81	46	1.94	49	2.91	74
4	100	4.17	106	7	178	8.25	210	6.88	175	4	102	8.39	213	15.38	391	2.06	52	2.19	56	2.91	74
6	150	6.17	157	9.25	235	10.3	260	8	203	5.25	133	9.49	241	17.75	451	2.19	56	2.31	59	2.91	74
8	200	8.17	208	11.6	295	12.4	314	9.25	235	6.5	165	10.75	273	20.25	514	2.38	60	2.5	64	2.91	74

Size		Dimensions								Flange / Stud Data								Weights
Size		K		M		N		P		Dia		Wafer		Lug		BC		Lug		Wafer
In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	In.	mm.	Lbs.	Kg.	Lbs.	Kg.
2 1/2	65	3.54	90	5.82	148	2.13	54	5.9	150	5/8	16	4.25	108	1.5	38	5.5	140	25	11	24	11
3	80	3.54	90	5.82	148	2.13	54	5.9	150	5/8	16	4.25	108	1.5	38	6	152	26	12	24	11
4	100	3.54	90	5.82	148	2.13	54	5.9	150	5/8	16	5	127	2	51	7.5	191	31	14	27	12
6	150	3.54	90	7.64	194	2.13	54	5.9	150	3/4	20	5.25	133	2	51	9.5	241	40	18	34	15
8	200	3.54	90	7.91	201	2.13	54	9.8	250	3/4	20	5.75	146	2.25	57	11.75	298	55	25	49	22

SPECIFICATION NIBCO BUTTERFLY VALVE WD-3510-8

PART	SPECIFICATION
1. Upper Stem	Stainless Steel ASTM A582 Type 416
2. Upper Bearing	Split Metal
3. O-Ring	EPDM
4. Body Ductile	Iron ASTM A395 w/Polyamide Coating
5. Disc Ductile	Iron ASTM A395 w/EPDM
6. Lower Bearing	Split Metal
7. Lower Stem	Stainless Steel ASTM A582 Type 416
8. Dust Plug	PVC
9. Name Plate	Aluminum

NIBCO Butterfly Valve WD-3510-8