Stainless Steel Butterfly Valves

Short Description:

Product Name: 304/316/316L Butterfly Valves
Valve Category: Butterfly Valve
Brand: Yiluoke
Technical Data: DN15-DN2000
Made In: China
Supplier: Xiamen Yiluoke Import and Export Trading Co., Ltd

Product Detail

Stainless steel butterfly valves are mainly composed of stainless steel valve body, rotating shaft, butterfly disc, valve seat and driving mechanism (handle, worm gear, pneumatic device or electric device), with a compact and simple structure. The valve body is connected to the pipeline through two flanges, and the driving mechanism drives the shaft and butterfly disc to rotate to achieve opening, closing and flow control.

Actuated Stainless Steel Butterfly Valves

Product Applications

Stainless steel butterfly valves are suitable for water supply and drainage systems of high‑rise buildings, fire pipeline water supply systems, etc. By controlling the opening and closing of the valve, it can effectively realize water flow control inside and outside the building and ensure the normal operation of water supply and drainage.

Product Features

• Lightweight and Efficient: The product is light in weight, facilitating installation. At the same time, it has a fast opening and closing speed, which can effectively improve work efficiency.

• Easy Operation: Through careful design, the product reduces the force required for operation, making the operation more labor‑saving and flexible. Users can easily open, close and adjust the product.

• Flexible Installation: The product has various installation methods and can be installed in different positions as needed. Both vertical and horizontal installation can meet the user's requirements.

• Convenient Maintenance: The maintenance process of the product is simple, and it is easy to disassemble and replace parts. Users can perform maintenance and upkeep quickly, saving time and costs.

• Strong Corrosion Resistance: The valve body and butterfly disc are made of stainless steel, which has high‑strength corrosion resistance and good pressure‑bearing performance, and can provide a safe and reliable operating environment for the stable operation of the pipe network system.

Component Materials

Part Name	Material
Valve Body	304, 304L, 316, 316L
Butterfly Disc	304, 304L, 316, 316L
Valve Shaft	304, 304L, 316, 316L
Sealing Ring	NBR oil‑resistant rubber, PTFE, EPDM
Packing	O‑ring, Flexible graphite

Technical Parameters

Brand	Xiamen Yiluoke
Product Name	Stainless Steel Butterfly Valve
Product Model	D71X/D71F
Valve Body Material	CF8, CF8M, CF3M Stainless Steel
Connection Type	Wafer Type
Nominal Diameter	DN40~DN1200
Drive Mode	Manual
Applicable Medium	Water, Gas, Oil
Applicable Temperature	NBR:‑40℃～90℃ / FKM:‑20℃～200℃
Nominal Pressure	1.0Mpa‑1.6Mpa
Design & Manufacturing	GB/T 12238‑2008; ISO 10631‑1991; API598
Face‑to‑Face Dimension	GB/T 12221‑2005; ISO 5752‑1988
Valve Inspection & Test	GB/T 13927‑2008; ISO 5208‑1987
Manufacturing Standards	GB, JB, HG, ANSI, API, JIS, DIN, Custom‑made

Dimensions

Dimensions of Stainless Steel Butterfly Valves

N	L	L1	D	PN10		PN16		150LB		10K		D3	H1	H2	H3
				D1	Z‑d	D1	Z‑d	D1	Z‑d	D1	Z‑d	Flange No.
50	42	220	52.9	125	4‑23	125	4‑23	120.6	4‑19	120	4‑19	F05	70	125	32
65	44.7	220	64.5	145	4‑23	145	4‑23	139.7	4‑19	140	4‑19	F05	77	137	32
80	45.2	255	78.8	160	8‑20	160	8‑20	152.4	4‑19	150	8‑19	F05	92	143	32
100	52.1	255	104	180	4‑23	180	4‑23	190.5	8‑19	175	8‑19	F07	105	164	32
125	54.4	290	123.3	210	4‑23	210	4‑23	215.9	8‑22	210	8‑23	F07	120	177	32
150	55.8	290	155.6	240	4‑25	240	4‑25	241.3	8‑22	240	8‑23	F07	134	198	32
200	60.6	340	202.5	295	4‑25	295	4‑25	298.5	8‑22	290	12‑23	F10	171	231	45

Grade Comparison Between 304 and 316 Stainless Steel Butterfly Valves

Feature	Grade 304	Grade 316
Corrosion Resistance	Suitable for mild chemicals	Excellent protection against chlorides, acids and strong corrosive chemicals
Typical Application	Food production lines, breweries and general‑purpose systems	Marine service, pharmaceutical production lines, chemical plants
Cost	More cost‑effective	Higher cost
Molybdenum Content	No	Yes
Service Life in Corrosive Liquid	Moderate	Long service life

How to Select Stainless Steel Butterfly Valves Correctly

Application Type	Recommended Valve	Reason
Sanitary or clean pipeline	Grade 304 or 316	Smooth and clean surface to prevent contamination
Marine or salt‑water exposure	Grade 316	Outstanding chloride resistance
Chemical processing	Grade 316	Handles acids, solvents and alkaline liquids
General‑purpose plant utilities	Grade 304	High cost‑performance
Automatic control system	Stainless steel electric butterfly valve	Precise operation and long service life