Pressure Safety Valve System with Stainless Steel 2PC Flanged Ball Valve

• Customization: Available
• Media: Water, Oil, Gas
• Material: Stainless Steel
• Connection Form: Flange
• Driving Mode: Manual or Pneumatic or Electrical
• Nominal Pressure: Pn16-40/Class150/10K
• Channel: Straight Through Type
• Structure: Floating Ball Valve
• Type: Floating Ball Valve
• Function: Relief Valve, Bypass-Valve
• Temperature: -20 Degree to 180 Degree
• Standard: DIN/ANSI/JIS/GB
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Certificates: ISO9001-2015, CE
• OEM/ODM: Acceptable
• Thread Standard: BSPT, Bsp, NPT etc
• Torque: Low Torque
• Casting: Wax Lost Investment Casting Technology
• Passway: Full Port/Full Bore
• Stem: Blow-out Proof Stem
• Transport Package: Cartons & Plywood Cases
• Specification: DN15(1/2") to DN150(6")
• Trademark: WELFLOW
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000piece/Month

Product Description

Product List 

https://ss-ballvalve.en.made-in-china.com/product-list-1.html

Product Description

Application of Two-Piece Flanged Ball Valves

Two-piece flanged ball valves are widely used in industrial pipeline systems to control the on/off flow of various media. They are suitable for water, oil, gas, steam, and certain corrosive fluids. Typical applications include:

1) Oil & Gas Industry – pipeline isolation, transport systems
2) Chemical & Petrochemical Plants – handling chemical media with reliable sealing
3) Water Treatment & Supply Systems – municipal pipelines, wastewater facilities
4) HVAC and Building Services – heating, cooling, and utility fluid pipelines
5) Power Generation – steam and condensate systems
6) Industrial Manufacturing – general-purpose fluid control in process lines

They are favored for their simple structure, easy maintenance, and strong sealing performance.

Detailed Photos

2PC Flanged Ball Valve

This valve features a two-piece body design, reliable sealing performance, and easy operation. It is suitable for water, oil, gas, and other industrial media. Commonly used in municipal pipelines, HVAC, industrial facilities, and general fluid control systems. Various sizes and materials are available to meet different application needs.

2PC Flanged Ball Valve With ISO5211 Platform

Designed with an ISO5211 high-mounting platform for easy actuator installation without additional brackets. It offers a compact structure, low operating torque, and excellent sealing performance. Ideal for automated control in chemical plants, water treatment systems, and industrial pipelines. Multiple options are available based on pressure rating, material, and end connection.

Internal Structure Diagram

This diagram illustrates the internal structure and main components of the 2-piece flanged ball valve, including the valve body, ball, seat, stem, and sealing elements. The compact flow-through design ensures quick shut-off and reliable sealing performance. It provides a clear view of the valve's working principle and key features, supporting installation, maintenance, and product selection.

Product Parameters

Size	d	d4	K	D	C	T	L	S	H
1/2"	DN15	41	65	95	2	14	115	9	75
3/4"	DN20	54	75	105	2	16	120	9	80
1"	DN25	64	85	115	2	16	125	11	90
11/4"	DN32	74	100	140	2	16	130	11	100
11/2"	DN40	81	110	150	3	16	140	14	120
2"	DN50	96	125	165	3	18	150	14	130
21/2"	DN65	117	145	185	3	18	170	17	150
3"	DN80	130	160	200	3	20	180	17	160
4"	DN100	151	180	220	3	20	190	19	185
5"	DN125	181	210	250	3	22	325	27	242
6"	DN150	205	240	285	3	22	350	27	270

Certifications

Company Profile

Zhejiang Welflow Valve CO., Ltd

Welflow is a professional valve manufacturer with 6 years of industry experience, supported by a team of over 50 employees and equipped with more than 20 CNC machines along with advanced production facilities. This ensures high precision, stable quality, and efficient production capacity for all our products.

We specialize in producing ball valves, check valves, gate valves, globe valves, threaded fittings, and flanges, widely used in industrial pipelines, petrochemical systems, water supply and drainage, power engineering, energy, and mechanical applications.

Welflow is certified with CE, ISO 9001:2015, and Bureau Veritas (BV), maintaining strict quality control throughout the entire production process. Our strong engineering and manufacturing capabilities enable us to offer flexible OEM and ODM services. To meet the diverse requirements of different markets, we offer tailored production solutions—for example, some customers request 316 stainless-steel handles, while others require 201 material. We adapt our specifications accordingly to meet local standards and customer expectations.

In the early years, our business mainly targeted the U.S. market. As global trade conditions evolved, we expanded our reach worldwide. Today, our customers primarily come from Australia, Europe, South America, and Southeast Asia. With reliable quality, customization capability, and professional service, we have earned long-term trust from clients across the globe.

Our goal is to establish Welflow as a globally recognized and trusted valve brand. Choosing Welflow means choosing a partner who puts your needs first. We deliver not only high-quality products but also solutions and support that help your business grow—ensuring reliable performance, personalized service, and greater ease in your daily operations.

Producing Process & Inspection

Packing & Delivery

FAQ

QUESTION?	ANSWER
1. Are you a factory?	Yes, Welflow is a factory located in Wenzhou, Zhejiang, China.
2. Do you have any requirements of MOQ?	No limited to MOQ but the difference in unit price.
3. Payment Terms	Typically 30% T/T as deposit, 70% against copy of BL/ Or balance L/C at sight.
4. Nearly Sea Port	Ningbo or Shanghai Port
5. Terms	FOB Ningbo/Shanghai, CIF, FCA, etc.
6. Delivery Time	Typically, it is 30-35 days after receiving the deposit payment. However, almost all of the items we have stock in 304.
7. Could you accept color Marks or Color Boxes?	Yes, both are acceptable; we have experience with them.
8. Could you accept marking our logo on the products?	Yes, on the handle or the bodies, both are okay. 1. Print on the Handle (NO MOQ requirements) 2. Laser Marking. (NO MOQ requirements) 3. Carvings(NO MOQ requirements) 4. Casting on the bodies (Has MOQ requirements)
9. Do you have Material Certificates?	Yes, if required, Each item will be laser marked with Heat NO and the material certificates.
10. How do you deal with customer complaints, such as quality issues?	This is an issue we take very seriously. As long as it is confirmed to be a quality issue, we will take full responsibility. 1. exchange or refund is acceptable. It mainly depends on how you need to deal with it.