ISO Standard DN800 DN150 DN300 Pn10 Ductile Iron Flanged Butterfly Valve with Single Flange

• Customization: Available
• Media: Air, Water, Steam, Oil
• Driving Mode: Manual, Electric, Pneumatic
• Model NO.: /
• Connection Form: Flange
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Forge Welding
• Standard: /
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Stem: 2Cr13 Stainless Steel
• Sealing Material: Stainless Steel
• Flange Connection Size: Hg/T20592
• Pressure Testing: GB/T26480
• Transport Package: Standard Ocean Export Packaging
• Specification: /
• Trademark: OEM
• Origin: China
• HS Code: 8481804090
• Production Capacity: 100000

Product Description

Product Description

Application and Features
The expansion valve is suitable for applications in food, pharmaceuticals, chemicals, petroleum, power, textiles, papermaking, and other industries, where it serves to regulate flow and shut off media in pipelines for water supply, drainage, and gas pipelines with a temperature ≤ 425°C and nominal pressure ≤ 1.6MPa. It also has the function of compensating for pipeline contraction and expansion due to temperature changes.

 Features

1. The design is innovative, reasonable, with a unique structure, lightweight, easy to operate, and quick to open and close.
2. In addition to regulating flow and shutting off media, the expansion butterfly valve compensates for thermal expansion and contraction caused by temperature differences in pipelines, while also providing convenience for valve installation, replacement, and maintenance.
3. The sealing components are adjustable and replaceable, ensuring reliable sealing performance.

Product Parameters

Main Components Material

Part Name	Material
Body	Ductile Iron, Carbon Steel, Stainless Steel
Disc	Ductile Iron, Carbon Steel, Alloy Steel, Stainless Steel
Seal Ring	Rubber, PTFE, Stainless Steel
Stem	2Cr13 Stainless Steel
Expansion Pipe	Carbon Steel, Stainless Steel
Packing	Flexible Graphite

Adopted Standards

Standard Type	Standard Number/Description
Design Standard	GB/T12238
Flange Connection Size	HG/T20592
Pressure Testing	GB/T26480

 

DN Dimensions Table

Nominal Diameter DN	D	D1	D2	Lmax	Lm in	Design Length	H1	H2	n-Φd
100	158	180	220	226	184	205	110	170	8-Φ18
125	184	210	250	232	190	211	123	182	8-Φ18
150	212	240	285	240	195	218	140	210	8-Φ18
200	268	295	340	265	215	240	170	238	8-Φ22
250	320	350	395	285	235	260	195	270	12-Φ22
300	370	400	445	300	250	275	222	300	12-Φ22
350	430	460	505	320	270	295	252	330	16-Φ22
400	482	515	565	343	283	313	285	368	16-Φ26
450	532	565	615	358	298	328	310	402	20-Φ26
500	585	620	670	378	318	348	337	438	20-Φ26
600	685	725	780	428	368	398	393	490	20-Φ30
700	800	840	895	465	395	430	450	558	24-Φ30
800	905	950	1015	500	430	465	515	625	24-Φ30
900	1005	1050	1115	545	475	510	560	685	28-Φ33
1000	1110	1160	1230	600	520	560	610	750	28-Φ36
120	1330	1380	1455	665	575	620	725	880	32-Φ39
1400	1530	1590	1875	735	635	685	840	987	36-Φ42
1600	1750	1820	1915	800	700	750	960	1158	40-Φ48
1800	1950	2020	2110	890	770	830	1060	1256	44-Φ48
2000	2150	2230	2320	970	850	910	1165	1365	48-Φ48

FAQ

Q: Can we visit your factory to inspect the products in person?

A: Of course, you are welcome to visit. Our products are built to withstand scrutiny, and we are very happy to have you here. We look forward to establishing a long-term trade partnership with you!

Q: Can you customize the products according to the specifications and appearance I require?

A: Yes, we can adjust our production lines to meet your required specifications and product appearance, including color.

Q: What if there is no Chinese translator when we visit the factory?

A: We will hire relevant translators based on your language needs to ensure smooth and efficient communication.

Q: What market share do your products occupy in China?

A: From 2021 to 2024, our company's annual turnover ranged from 50 million to 100 million RMB, capturing a large share of the Chinese market.

Q: What are your competitive advantages compared to other companies in the industry?

A: Brand reputation. Our company does not compete on price, but rather on quality. We invest substantial funds into production materials, advanced equipment, and skilled technicians, focusing on building a strong brand image and a positive company reputation, rather than engaging in price competition.

Company Profile

Quality (Shandong) Industrial Automation Co., Ltd. is located in Zibo City, Shandong Province, China, an area rich in cultural heritage, with a strong industrial foundation and a high level of production concentration. We are a high-tech valve manufacturing enterprise integrating design and development, manufacturing and installation, sales and service, technical communication, and international trade.

Based on conventional valves, the company actively applies new technologies, materials, and processes to research and manufacture various high-end valves, as well as general high and medium-pressure gate valves, globe valves, check valves, ball valves, etc. All products are designed, manufactured, and processed according to standards such as GB, ANSI, API, JIS, DIN, and BS. Additionally, we are capable of researching, designing, and developing high-performance special valves and non-standard products based on customer needs.

Our products are widely used in industries such as petroleum, chemical engineering, metallurgy, and power generation, and are suitable for various complex working conditions such as high temperature, high pressure, sulfur resistance, corrosion resistance, and erosion resistance.

Certifications

 

Quality Control

Packaging & Shipping

EXHIBITION