Factory Price Stainless Steel CF8 Concentric Butterfly Valve for Wafer Type

• Customization: Available
• Media: Water
• Driving Mode: Manual
• Model NO.: D71X
• Connection Form: Wafer
• Structure: Centre Sealing
• Seal Form: Supercharging Pressured Sealed
• Valve Stem: Normal
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: ANSI/BS/DIN/JIS
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Body: CF8
• Disc: CF8, CF8m, CF3, CF3m, C594, C598
• Seat: EPDM, NBR, Viton
• Stem: CF8, CF8m, CF3, CF3m, C594, C598
• Transport Package: Standard Export Wooden Carton
• Specification: DN40-DN300
• Trademark: Yuming/OEM/ODM
• Origin: Zhengzhou, China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Month
• Package Size: 100.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 45.000kg

Product Description

Product Description

 

Product Advantages

1. Rigorous Quality Assurance: All Yuming products are meticulously examined and come with a comprehensive pressure test report prior to leaving our factory, ensuring top-notch reliability and performance.
2. High Performance Seat Rubber: Boasting a substantial rubber content of 50%, this seat guarantees exceptional longevity, with a remarkable switch life exceeding 30,000 cycles.
3. Soft Seat Superiority: Offering a broader contact surface between pipes and flanges compared to hard seats, our soft seats provide superior sealing performance. Additionally, they eliminate the need for special flanges, making installation more efficient.
4. Revolutionary Axial Seal: Our innovative design supports the shaft with four oil-free bearings, complemented by a dual seal structure featuring an O-ring and oil seal. This results in reduced torque and unmatched reliability.
5. Robust Surface Coating: Our products are finished with an epoxy powder coating, known for its excellent adhesion and exceptional resistance to weather conditions, making them suitable for both indoor and outdoor use.
6. Durable Ductile Iron Handle: Constructed from ductile iron, our handles surpass stamped handles in strength, corrosion resistance, and durability. The ergonomic half-round design ensures a comfortable grip without sharp edges.
7. Blow-Off Resistant Shaft Design: Our no-pin butterfly valves feature an anti blow-off structure, enabling handle changes even under pressure, thereby enhancing safety and convenience.

Design Standards
Design and Manufacturing Standards: GB/T 12238
Structure Length Standard: GB/T 12221
Test Standard: GB/T 13927
Upper Flange Connection Standard: ISO 5211
Flange Size Standard: GB/T 17241.6, ASME B16.5, ASME B16.47,
ASME B16.1, JIS B2220

Technical Specification:

Valve DesignConforms to: BS EN593/BS5155/API609/DIN3354

Face to Face:In accordance with: ISO 5752-20/BS EN558-20/API609

Flange Drilling:Standards: ASME B16.1 Class125/ASME B16.5 CL150/ASME B16.47 CL150/ DIN 2501 PN10-16/EN1092 PN10-16/JIS10K

Hydraulic Test:Complies with: EN12266-1/API 598/ISO5208/JIS B2003

Shell Test Pressure:Rated at: 24 bar/15 bar

Sealing Test Pressure:Rated at: 17.6 bar/11 bar

Material List:

Body:

• Cast Iron: ASTM A126 CL.B / DIN1691 GG25
• Ductile Iron: ASTM A536 60-40-18 / DIN1693 GGG40
• Carbon Steel: ASTM A216 WCB
• Stainless Steel: ASTM A351 CF8 / CF8M
• Bronze AL-Bronze: ASTM B148 C954

Disc:

• Ductile Iron: ASTM A536 60-40-18 / DIN1693 GGG40
• Carbon Steel: ASTM A216 WCB
• Stainless Steel: ASTM A351 CF8 / CF8M
• Bronze AL-Bronze: ASTM B148 C954
• Coating: Nickel-plated, Epoxy, EPDM, VITON, Nylon

Stem:

• Material: Stainless Steel (ASTM A182 304/316/410)
• Material: High-Performance Alloy (Monel K500)

Seat:

• Elastomer Working Temperature
• EPDM -45ºC to 135ºC
• NBR -10ºC to 80ºC
• VITON -20ºC to 150ºC
• PTFE -10ºC to 150ºC

Bushing: Premium PTFE/Bronze

Pin:

• Material: Stainless Steel (ASTM A182 304/316/410)
• Material: High-Performance Alloy (Monel K500)

Product Parameters

DN		A	D1	L1	L2	L3	B	φD2	φD3	n-φd	L
1.5″	DN40	34	62.5	55.5	111.5	25	9	65	50	4-8	249
2″	DN50	43	80	72	132	25	9	65	50	4-8	249
2.5″	DN65	46	95	86	138	25	9	65	50	4-8	249
3″	DN80	46	113	96	153	25	9	65	50	4-8	249
4″	DN100	52	135	108	167	28	11	90	70	4-10	283
5″	DN125	56	163	125	184	28	14	90	70	4-10	283
6″	DN150	56	190	138	195	28	14	90	70	4-10	283
8″	DN200	60	244	170	236	33	17	125	102	4-12	390
10″	DN250	68	298	209	266	33	22	125	102	4-12	390
12″	DN300	78	350	236	305	33	22	125	102	4-12	540

Detailed Photos

Certifications

 

 

Customer Visits

Company Profile

 

Founded in 1972, Yuming Valve Group Co., Ltd. spans an impressive 82,000 square meters within our state-of-the-art industrial park, featuring 38,000 square meters of advanced construction.
Yuming Valve Group Co., Ltd. stands as a premier industrial valve manufacturer celebrated for its unparalleled product quality and exceptional customer service. Since our inception in 1972, we have flourished into a significant enterprise boasting over 700 dedicated employees, including an elite team of more than 80 technical experts.

Our expertise lies in the meticulous research, innovative manufacturing, comprehensive testing, and strategic sales of a diverse array of valves. While our flagship product is the ball valve, our extensive portfolio also includes safety valves, butterfly valves, gate valves, globe valves, check valves, and more. Our valves are integral to numerous sectors such as heating, petroleum, natural gas, chemical engineering, power generation, construction, and water supply and drainage systems.

At Yuming Valve Group, our mission is to deliver cutting-edge valve solutions tailored to our customers' needs. We prioritize quality above all else, ensuring each valve's excellence through advanced manufacturing processes and stringent quality control protocols. Our experienced technical team is always on hand to offer robust support and comprehensive after-sales service, guaranteeing seamless installation and flawless operation of our valves.

In search of superior valve products or expert technical assistance? Yuming Valve Group is dedicated to being your reliable partner. We are eager to build enduring, collaborative relationships and fulfill all your valve requirements and solutions with professionalism and trust.