Size: 1"-36" (DN15 - DN900) Class: 150LB-1500LBElectric Butterfly ValvesT emperature Range: -10℃ to 400℃ (14°F to 752°F)

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Model NO. Electric Butterfly Valves

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Size: 1"-36" (DN15 - DN900)
Class: 150#-1500#.
● Valve Material Options: Cast Iron, WCB, Plastic and Stainless Steel 304/316/316L
● Valve Deisgn & Manufacture Options: ANSI, JIS, DIN or GB
● Valve Connection Options: Wafer, Lugged, Tri Clamp or Flanged
● Port Size Range: 2 inches to 24 inches. (Special size could be customized)
● Temperature Range: -10℃ to 400℃ (14°F to 752°F)
● Actuator Type Options: ON OFF Type or Regulating Type
● Rotation: Quarter-turn (90 Degrees)

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Electric Butterfly ValvesManufacturer

They are frequently used in applications requiring large sizes and high temperatures due to their lower cost relative to other styles of control valves. Care is required in sizing and applying this style of valve to eliminate control problems associated with process load changes. They work quite well for constant process load applications. Designs using characterized contour are able to expand the control range to that of a segmented ball valve.

Available end connection styles include wafer, lugged, and double flange.

S J is one of the leading Electric Butterfly Valve Manufacturer A butterfly valve has a circular disc inside the valve body as part of its construction. This disc stops the path when the valve is in the closed position, stopping the flow of liquids or gases. The opening can be precisely adjusted by rotating the disc either parallel to or perpendicular to the flow direction to control the flow. The butterfly valve is a popular option for applications that call for rapid shutdown or flow modulation due to its quick and simple functioning. Overall, butterfly valves provide a performance, adaptability, and cost-effectiveness balance that meets a variety of fluid control needs across industries.

Electric vs Hydraulic Butterfly Valve

Item	Electric Butterfly Valve	Hydraulic Butterfly Valve
Actuation	Motor + gearbox	Hydraulic actuator + pump unit
Torque	Medium	High, suits large valves
Power source	AC/DC power	Hydraulic oil system
Speed	Fixed, slower	Adjustable, fast on/off
Hazardous area	Needs explosion-proof motor	Better fit, no spark risk
System	Simple wiring	Complex, needs pump & piping
Maintenance	Low, easy	Higher, oil refill & seal check
Best for	Water, HVAC, general duty	Oil & gas, dams, high-pressure lines

Electric butterfly valves use motor drive with simple installation and low maintenance for common general‑duty services. Hydraulic butterfly valves provide high torque and adjustable speed, suitable for large‑size, high‑risk heavy‑duty pipelines.

Main Technology Parameter
Nominal Pressure (MPa)	Test Pressure(MPa)				Applicable Temperature	Applicable Medium
	Shell Test	High Pressure Seal		Low Pressure Seal
CLASS150	2.93	2.07		0.6	-29～425℃	Water,Steam,Oil,Seawater.
CLASS300	7.58	5.52		0.6
CLASS600	15.0	11.03		0.6
CLASS900	24.0	17.6		0.6

Material for Main Parts
Parts Name			Material
Body			WCB、304、316、316SS、CF8M
Disc			WCB、304、316、316SS、CF8M
Stem			316、2Cr13、1Cr18Ni9Ti
Sealing Ring			316、Fluorine Plastic
Packing			Flexible Graphite,Fluorine Plastic

Main connection dimensions
DN		150Lb						300Lb
Inch	mm	L	H	H1	D1	D2	Z-φ(M)d	L	H	H1	D1	D2	Z-φ(M)d
2	50	43	300	210	120.5	92	4-19	43	330	230	127	92	4-19
3	80	49	340	230	152.5	127	4-19	49	420	270	168.5	127	4-22
4	100	54	400	265	190.5	157	4-19	54	490	305	200	157	4-22
5	125	57	480	325	216	186	4-22	57	530	345	235	186	4-22
6	150	58	530	345	241.5	216	4-22	61	590	380	270	216	4-(3/4)
8	200	64	620	395	298.5	270	4-22	73	650	410	330	270	4-(7/8)
10	250	71	680	425	362	324	4-25	83	750	470	387.5	324	4-(1)
12	300	81	800	495	432	381	4-25	92	860	545	451	381	4-(1-1/8)
14	350	92	880	555	476	413	4-29	117	940	590	514.5	413	4-(1-1/8)
16	400	102	950	590	540	470	4-(1)	133	990	640	571.5	470	4-(1-1/4)
18	450	114	1000	630	578	533	4-(1-1/8)	149	1100	690	628.5	533	4-(1-1/4)
20	500	127	1110	700	635	584	4-(1-1/8)	159	1200	740	686	584	4-(1-1/4)
24	600	154	1230	750	749.5	692	4-(1-1/4)	181	1360	850	813	692	4-(1-1/2)
28	700	165	1350	810	795.3	762	8-(3/4)	229	1430	870	857.2	787	4-(1-1/4)
32	800	190	1390	840	900.1	864	8-(3/4)	254	1570	950	977.9	902	4-(1-1/2)
36	900	203	1660	1000	1009.6	972	8-(7/8)	254	1750	1110	1089	1010	4-(1-5/8)
40	1000	216	1720	1080	1120.8	1080	8-(1)	300	1980	1200	1190.6	1114	4-(1-5/8)
48	1200	254	2080	1250	1335.1	1289	8-(1-1/8)	360	2130	1270	1416	1327	4-(1-7/8)
DN		600Lb						900Lb
Inch	mm	L	H	H1	D1	D2	Z-φ (M)d	L	H	H1	D1	D2	Z-Φ(M)d
2	50	43	355	230	127	92	4-(5/8)	一	一	一	一	一	一
3	80	54	480	290	168.3	127	4-(3/4)	一	一	一	一	一	一
4	100	64	510	320	215.9	157	4-(7/8)	一	一	一	一	一	一
5	125	76	590	380	266.7	186	4-(1)	一	一	一	一	一	一
6	150	78	620	400	292.1	216	4-(1)	104	760	460	317.5	216	4-(1-1/8)
8	200	102	730	460	349.2	270	4-(1-1/8)	112	850	530	393.7	270	4-(1-3/8)
10	250	117	870	550	431.8	324	4-(1-1/4)	135	980	635	469.9	324	4-(1-3/8)
12	300	140	930	600	489	381	4-(1-1/4)	170	1050	690	533.4	381	4-(1-3/8)
14	350	155	1005	630	527	413	4-(1-3/8)	173	1130	720	558.8	413	4-(1-1/2)
16	400	178	1135	705	603.2	470	4-(1-1/2)	210	1195	740	616	470	4-(1-5/8)
18	450	200	1200	750	654	533	4-(1-5/8)	228	1340	840	685.8	533	4-(1-7/8)
20	500	216	1270	780	723.9	584	4-(1-5/8)	250	1410	865	749.3	584	4-(2)
24	600	232	1440	880	838.2	692	4-(1-7/8)	275	1645	990	901.7	692	4-(2-1/2)

FAQ for Electric Butterfly Valves

Q1：What media can electric butterfly valves handle?

A: Electric butterfly valves can work with water, wastewater, air, general‑grade chemical liquids and low‑density slurry. Seat material determines media compatibility: EPDM for water & weak alkali, Viton for oil and corrosive fluid, metal seat for high‑temperature particle‑containing medium. Not recommended for strong corrosive concentrated acid without special custom materialNTGD Valve。 SJ Conclusion: SJ electric butterfly valves support customizable seat & disc materials to match most common industrial fluid conditions.

Q2：What will happen when power fails for electric butterfly valves?

A: Standard electric actuators will lock the disc and keep its current position upon power loss. If fail‑safe open/close function is required, you need to select actuators with battery backup unit. Unlike pneumatic butterfly valves, standard electric version has no spring return structureHEARKEN。

SJ Conclusion: SJ supplies both standard lock‑on‑power‑failure models and battery‑type fail‑safe electric butterfly valves for safety‑critical projects.

Q3：Electric Butterfly Valves vs Electric Ball Valves & Gate Valves, what is the key difference for selection?

Electric butterfly valve: compact weight, cost‑advantage for large‑diameter DN200+, good throttling performance, fit for medium‑low pressure PN10‑PN16, HVAC, water treatment.
Electric ball valve: superior zero‑leak sealing, higher cost for big size, suitable for high‑pressure & strict shut‑off requirements.
Electric gate valve: full‑bore minimal pressure drop, slow operation, for high‑pressure main pipeline, only for on‑off isolation rather than throttlingKosen。
SJ Conclusion: SJ suggests electric butterfly valves as priority for large‑size medium‑low pressure circulation pipelines; choose ball/gate valves for high‑pressure zero‑leak service.

Q4：Can electric butterfly valves do throttling flow regulation?

A: Yes. When equipped with modulating electric actuator (4‑20mA / 0‑10V signal), electric butterfly valves realize continuous flow adjustment. It delivers stable performance for general throttling scenarios, though globe valves still have better precision for tiny‑flow fine controlit.delcova...

SJ Conclusion: SJ modulating‑type electric butterfly valves provide reliable flow throttling for water, gas and general process pipelines.

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Head Office Address: Viale del Lavoro.19,20003 Casorezzo Ml. Italy Testing zone
Address:Via S. Giovanni Bosco S.n.c.70020 – Poggiorsini (BA) – ITALY

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Branch Office Address: Dongou Industrial Zone, Oubei Street, Yongjia Wenzhou City, Zhejiang Province China Testing zone 2 Address:No. 205, Linwu Road, Sanqiao Industrial Zone

What exactly is the relationship between SANJING Valve Company and SJ Valvole S.R.L.?

SANJING Valve Company is the main manufacturing company, responsible for valve production, quality control, testing, and technical support. SJ Valvole S.R.L. serves as SANJING’s Italian office, supporting its business development, customer communication, and commercial activities in Italy and the European market.

Integrated Manufacturing and European Service

The two operations work together to provide customers with coordinated manufacturing and local market support:

Manufacturing & Quality Control: SANJING Valve Company manages valve manufacturing, inspection, testing, and quality control at its production facilities.

European Market Support: SJ Valvole S.R.L. supports customer communication, commercial coordination, and business development in Italy and other European markets.

Project Coordination: Customer requirements, technical specifications, documentation, production, and delivery can be coordinated between the Italian office and the manufacturing team.

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