Cast Iron Butterfly Valves Models T-335 / T-337

Vendor: Legend Valve

Valve Type(s):
Butterfly Valves

Valve Description:

LEGEND MODELS T-335 and T-337 butterfly valves are a wafer design made of ASTM A-126 cast iron. They have an aluminum bronze disc and stainless steel shaft. They offer a bubble tight seal and are bi-directional flow. The extended neck is ideal for insulated pipe. The ten position handle is standard. Intended for general piping applications requiring a positive shut-off.

T-335AB: ALUMINUM BRONZE DISC, EPDM SEAT
T-335DI: DUCTILE IRON DISC, EPDM SEAT
T-335SS: 316 STAINLESS STEEL DISC, EPDM SEAT*


T-337AB: ALUMINUM BRONZE DISC, BUNA-N SEAT
T-337DI: DUCTILE IRON DISC, BUNA-N SEAT
T-337SS: 316 STAINLESS STEEL DISC, BUNA-N SEAT*


T-335AB-G: ALUMINUM BRONZE DISC, EPDM SEAT
T-335DI-G: DUCTILE IRON DISC, EPDM SEAT
T-335SS-G: 316 STAINLESS STEEL DISC, EPDM SEAT*


T-337AB-G: ALUMINUM BRONZE DISC, BUNA-N SEAT
T-337DI-G: DUCTILE IRON DISC, BUNA-N SEAT
T-337SS-G: 316 STAINLESS STEEL DISC, BUNA-N SEAT*


ALL BUTTERFLY VALVES ARE 200 W.O.G. NON-SHOCK.
*INDICATES SPECIAL ORDER ITEMS. PLEASE CONTACT CUSTOMER SERVICE FOR MORE INFORMATION
**UP TO 100 P.S.I. ONLY.

• Flange connection features of the valve's body conform to ANSI class 125/150 flange dimensions.
• Manufactured in conformance to the following standards:
  • MSS SP-67
  • API 609
  • AWWA C504
  • EN 593
• Manufactured in an ISO accredited facility

MATERIAL SPECIFICATION
	PART		MATERIAL		SPECIFICATION
	1	Body	Ductile Iron, epoxy coated		ASTM A536 UNS F32800
	2	Disc (optional disc material) (optional disc material)	Aluminum Bronze Ductile Iron Stainless Steel	(T-335AB, T-337AB)  (T-335DI, T-337DI)  (T-335SS, T-337SS)	ASTM B148 UNS C95800 ASTM A536 UNS F32800 ASTM A351 CF8M (investment cast 316)
	3	Seat: T-335AB & T-335AB-G T-337AB & T-337AB-G Seat backing	EPDM Buna-N (NBR) Phenolic resin		Commercial grade Commercial grade
	4	Upper shaft	Stainless steel		AISI 410 stainless steel
	5	Lower shaft	Stainless steel		AISI 410 stainless steel
	6	Bushings  (upper and lower)	PTFE		PTFE
	7	O-ring: T-335AB & T-335AB-G T-337AB & T-337AB-G	EPDM Buna-N (NBR)		Commercial grade Commercial grade
	8	Half ring	Stainless steel		AISI 316 stainless steel
	9	Washer	Stainless steel		AISI 316 stainless steel
	10	Retainer ring	Stainless steel		AISI 316 stainless steel

VALVE WEIGHT
VALVE SIZE	T-335-G T-337-G	T-365-G T-367-G	T-335 T-337	T-365 T-367
2"	26 lbs.	28 lbs.	9 lbs.	11 lbs.
2-1/2"	28 lbs.	30 lbs.	11 lbs.	13 lbs.
3"	28 lbs.	31 lbs.	11 lbs.	14 lbs.
4"	31 lbs.*	38 lbs.*	14 lbs.	21 lbs.
5"	35 lbs.*	43 lbs.*	18 lbs.	26 lbs.
6"	38 lbs.*	46 lbs.*	21 lbs.	29 lbs.
8"	62 lbs.*	74 lbs.*	35 lbs.	47 lbs.

Valve Category:

Butterfly Valves

Valve Subcategory

Cast Iron - Wafer Type

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DIMENSIONS IN INCHES
VALVE SIZE	A	B	C	D	E	F (wafer)	F (lug)	G (wafer)	H	I	J	K	L	M	N	O	P	D1
2"	6.34	3.15	1.65	2.08	2.25	3.94	4.76	3.34	3.03	1.26	12.00	5.19	4.25	8.00	2.75	1.50	10.50	4.75
2-1/2"	6.89	3.50	1.76	2.54	2.25	4.72	5.43	3.79	3.03	1.26	12.00	5.19	4.25	8.00	2.75	1.50	10.50	5.50
3"	7.13	3.74	1.78	3.10	2.25	5.00	5.75	2.41	3.03	1.26	12.00	5.19	4.25	8.00	2.75	1.50	10.50	6.00
4"	7.87	4.49	2.05	4.09	2.75	6.14	8.11	2.79	3.62	1.26	12.00	5.19	4.25	8.00	2.75	1.50	10.50	7.50
5"	8.39	5.00	2.13	4.85	2.75	7.48	9.21	3.24	3.62	1.26	12.00	5.19	4.25	8.00	2.75	1.50	10.50	8.50
6"	8.90	5.47	2.20	6.13	2.75	8.35	10.31	3.59	3.62	1.26	12.00	5.19	4.25	8.00	2.75	1.50	10.50	9.50
8"	10.24	6.89	2.39	7.97	3.50	10.55	12.32	4.44	4.53	1.77	12.00	7.25	6.25	12.38	3.25	1.69	14.00	11.75

CV FACTORS AT VARIOUS DISC OPENINGS (in degrees)
VALVE SIZE	10°	20°	30°	40°	50°	60°	70°	80°	90°	GEAR RATIO	STEM DIA.
2"	0.119	7.170	13.46	22.44	34.00	49	57	60	62	24:1	0.500
2-1/2"	0.185	11.21	28.68	44.68	65.28	87	106	118	123	24:1	0.500
3"	0.267	16.14	41.30	64.35	94.20	135.3	172	208	239	24:1	0.500
4"	0.467	28.70	73.42	114.4	167.5	240.6	314	384	438	24:1	0.625
5"	0.744	44.84	114.7	178.7	261.7	375.9	503	654	817	24:1	0.750
6"	1.07	64.57	165.2	257.4	376.8	541.3	744	995	1320	24:1	0.750
8"	1.90	114.8	293.7	457.6	669.9	962.3	1367	1772	3019	30:1	0.875