API 609 Butterfly Valve Manufacturer

What is API 609

API 609 refers to the American Petroleum Institute butterfly valve standard. API 609 specifies the design, materials, testing, FTF and dimensions of butterfly valves.The standard covers different types of butterfly valves, including lug-type butterfly valves, wafer-type butterfly valves and double-flange butterfly valves.

There are two catagories of API 609: A and B. Catagory A refers to concentric butterly valves, while Catagory B refers to eccentric butterfly valves.

When selecting an API 609 butterfly valve, factors such as material of construction, connection type (lug, wafer, or flange), pressure rating, temperature range, and flow characteristics should be considered.

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API 609 Valves Type For Your Choice

Connection: Wafer, Flange(double flange, single flange), Lug.
Structure: center line, double eccentric, triple eccentric.
Body material: Ductile Iron(GGG40/50), LCB, Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529).
Disc material: DI(Ni lined), WCB (A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2205/2507).
Seat: Rubber (EPDM, NBR), PTFE, Metal.
Actuator Options: Lever, Worm Gear, Electric Actuator, Pneumatic Actuator.
Pressure rating: PN6-PN40.
Temperature range: -46~+425℃.

As you know, the price of API 609 butterfly valve requires relatively complex combination calculation, so if you have any questions, please contact us, we are always here.

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Browse our API 609 Butterfly Valve Categories

Wafer Butterfly Valve

Flange Butterfly Valve

Lug Butterfly Valve

Double Offset Butterfly Valve

Triple Offset Butterfly Valve

Butterfly Valve Body

Butterfly Valve Disc

Butterfly Valve Seat

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Why Choose US

ABOUT US

ZFA VALVE factory Founded in 2006, mainly produce API 609 butterfly valves, valve parts which compliance with valve international standard.

We have got ISO, CE, Wras, API certificates etc.

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OEM Capacity

We have 32 machines (include CNC, machine center, semi-auto machine, pressure testing machine, etc.)

The most important is that we have tens of molds in hand, such as wafer/flanged/lug valve body, disc, seat, handle molds.

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Butterfly Valve Manufacturing Process

We’re a real butterfly valve factory with 17 years production experience, OEM for some customers around the world. All butterfly valves sold by ZFA VALVE are manufactured in our own factory. The excellent quality of our products comes from the meticulous management of the production process. ZFA VALVE is proud to show you our real production scene. Here is our motto: Rigorous production leads to excellent quality!

Step 1: Casting

Step 2:Material Preparation

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Step 3:Material Quality Inspection

Step 4:Machining Parts

Step 5:Surface Treatment

Step 6:Assembly

Step 7:Inspection And Quality Control

Step 8: Packaging

Step 9: Distribution

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Producing Process of Butterfly Valve Parts

Valve Body of Butterfly Valve

Valve Disc of Butterfly Valve

Soft-backed Seat of Butterfly Valve

Factory Overview

Get More Videos about MANUFACTURING PROCESS, and CAD DAWING about the butterfly valve, please contact us!

Certificates

FAQ

1.What is the Face to face dimensions of API 609 Butterfly Valve?

Face-to-face Dimensions， Category A Valves (Lug and Wafer type)
DN(INCH)	mm	in.
2	43	1.69
2 1/2	46	1.81
3	46	1.81
4	52	2.06
5	56	2.19
6	56	2.19
8	60	2.38
10	68	2.69
12	78	3.06
14	78	3.06
16	102	4.00
18	114	4.50
20	127	5.00
24	154	6.06
30	165	6.50
36	200	7.88
42	251	9.88
48	276	10.88

Face-to-face Dimensions， Category B Valves
Lug and Wafer type							Double-flanged Long type						Double-flanged Short type
DN (inch)	150lb		300lb		600lb		150lb		300lb		600lb		150lb		300lb		600lb
DN (inch)	mm	in.	mm	in.	mm	in.	mm	in.	mm	in.	mm	in.	mm	in.	mm	in.	mm	in.
3	48	1.88	48	1.88	54	2.12	203	8.00	282	11.12	356	14	114	4.50	180	7.09	180	7.09
4	54	2.12	54	2.12	64	2.50	229	9.00	305	12.00	432	17	127	5.00	190	7.48	190	7.48
6	57	2.25	59	2.31	78	3.06	267	10.50	403	15.88	559	22	140	5.50	330	8.27	210	8.27
8	64	2.50	73	2.88	102	4.00	292	11.50	418	16.50	660	26	152	6.00	350	9.06	230	9.06
10	71	2.81	83	3.25	117	4.62	330	13.00	457	18.00	787	31	165	6.50	250	9.84	250	9.84
12	81	3.19	92	3.62	140	5.50	356	14.00	502	19.75	838	33	270	7.00	178	10.63	270	10.63
14	92	3.62	117	4.62	155	6.12	381	15.00	762	30.00	889	35	190	7.50	290	11.42	290	11.42
16	102	4.00	133	5.25	178	7.00	406	16.00	838	33.00	991	39	216	8.50	310	12.20	310	12.2
18	114	4.50	149	5.88	200	7.88	432	17.00	914	36.00	1092	43	222	8.75	210	12.99	330	12.99
20	127	5.00	159	6.25	216	8.50	457	18.00	991	39.00	1194	47	229	9.00	230	13.78	350	13.78
24	154	6.06	181	7.12	232	9.13	508	20.00	1143	45.00	1397	55	267	10.50	390	15.35	390	15.35
26	—	—	—	—	—	—	559	22.00	1245	49.00	1448	57	292	11.50	410	16.14	—	—
28	—	—	—	—	—	—	610	24.00	1346	53.00	1549	61	292	11.50	430	16.93	—	—
30	—	—	—	—	—	—	610	24.00	1397	55.00	1651	65	318	12.52	450	17.72	—	—
32	—	—	—	—	—	—	660	26.00	1524	60.00	1778	70	318	12.52	470	18.50	—	—
36	—	—	—	—	—	—	711	28.00	1727	68.00	2083	82	330	12.99	510	20.80	—	—
38	—	—	—	—	—	—	—	—	—	—	—	—	410	16.14	530	20.87	—	—
40	—	—	—	—	—	—	—	—	—	—	—	—	410	16.14	550	21.65	—	—
42	—	—	—	—	—	—	—	—	—	—	—	—	410	16.14	570	22.44	—	—
48	—	—	—	—	—	—	—	—	—	—	—	—	470	18.50	630	24.80	—	—

2. What is function of butterfly valve?
A: Butterfly valve is also called ON-OFF valve, it is used for flow control: start and stop the fluid.
3. What are the main applications of API 609 butterfly valves?
API 609 butterfly valves are used in industries such as water, oil and gas, chemical processing, power generation, water treatment, HVAC, and more.
4. What is the actuator of API 609 butterfly valve?
A: Worm Gear, Electric, and Pneumatic can be selectable.
5. Can you casting our Logo on the Valve body?
A: Yes, we provide OEM service, you can design your Logo and packing etc.