Premium Hoswell Pneumatic Diaphragm Valve for Industrial Applications

• Customization: Available
• Media: Water
• Temperature: Low Temperature
• Model NO.: DN100
• Actuator: Pneumatic
• Connection: Clamp Diaphragm Valve
• Material: Cast Iron
• Structure: Global Diaphragm Valve
• Pressure: Low Pressure
• Flow Direction: Unidirection
• Function: Solenoid Valve, Electronic Type, Intelligent Type, Field Bus
• Usage: Safety, Emptying, Drain, Temperature Control, Flow Control
• Standard: DIN, GB, ANSI, BSW, JIS
• Installation and Disassembly: Easy
• Diaphragm: PTFE EPDM PTFE
• Nominal Pressure: Pn1.0MPa Pn1.6MPa
• Transport Package: Export Wooden Crate
• Specification: DN15 - DN500
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000piece/Y

Product Description

Product Description

General Introduction

A pneumatic diaphragm valve is a special - type shut - off valve. Its opening and closing member is a diaphragm made of soft materials, which separates the inner cavity of the valve body from that of the valve cover and the driving components. It is widely used in various industries for fluid control.

Structure and Working Principle

• Structure
  • The valve consists of a valve body, valve cover, diaphragm, valve stem, and pneumatic actuator. The diaphragm is a crucial component, acting as a barrier between the process fluid and the actuator.
  • The valve body provides the flow passage for the medium, and its shape and size vary according to different types and applications.
  • The pneumatic actuator provides the driving force, usually powered by compressed air.
• Working Principle
  • It operates by using air pressure to drive the diaphragm. When compressed air is supplied to the actuator, it causes the diaphragm to move up or down.
  • When the diaphragm covers the weir surface of the valve body, the medium flow is cut off, and the valve is closed. When the diaphragm moves upward, the medium can flow through, and the valve is open.

Types

• Normally Closed Type: In the absence of air supply, the valve is in a closed state. When air is supplied, the valve opens.
• Normally Open Type: Opposite to the normally closed type, the valve is open without air supply and closes when air is applied.
• Reciprocating Type: Performs reciprocating motion to control the flow of the medium.

Features

• Good Sealing Performance: The soft - material diaphragm provides excellent sealing, preventing media leakage. It can effectively isolate the medium, and there is no need for a separate stem packing seal structure, which reduces the risk of leakage.
• Corrosion Resistance: Since the driving components are separated from the medium by the diaphragm, they are not easily corroded by corrosive media. This makes it suitable for handling corrosive fluids.
• Small Flow Resistance: The internal structure design usually results in a relatively smooth flow path, enabling a large flow rate with low resistance.
• Simple Structure and Easy Maintenance: The overall structure is relatively simple, which is convenient for installation, disassembly, and maintenance. The diaphragm is also relatively easy to replace.

Main Components and Materials

• Valve Body: Common materials include cast iron, ductile iron, carbon steel, stainless steel (such as 304, 316L). Different materials are selected according to the application environment and medium characteristics. For example, stainless steel is often used in corrosive environments.
• Diaphragm: Materials mainly include rubber (such as EPDM, FKM), PTFE, etc. Each material has its own characteristics in terms of temperature resistance, chemical resistance, and wear resistance. For instance, FKM has good high - temperature resistance and chemical resistance, suitable for harsh chemical media.
• Valve Cover: Similar to the valve body, materials like cast iron, ductile iron, carbon steel, and stainless steel are commonly used.
• Valve Stem: Usually made of carbon steel or stainless steel, which needs to have sufficient strength and corrosion resistance to drive the diaphragm movement.

Connecting Methods

• Flange Connection: This is the most common connection method. The flanges at both ends of the valve are connected to the pipeline flanges through bolts. It offers high connection strength, good sealing performance, and is suitable for a wide range of pressures and pipe diameters. It is widely used in industrial pipeline systems, such as in chemical, petroleum, and power industries.
• Threaded Connection: Threads are machined on the end of the valve, which is then screwed onto the corresponding threaded pipeline. It is compact in structure and easy to operate, but has relatively lower connection strength and sealing performance compared to flange connection. It is suitable for small - diameter, low - pressure pipelines, such as in civil building water supply and drainage systems and small - scale industrial installations.
• Clamp Connection: Using a clamp, a sealing ring, and bolts, the valve and pipeline can be quickly connected. It is very convenient for installation and disassembly, does not require special tools, and has good sealing performance. It is widely used in industries with high hygiene requirements, such as food, beverage, and pharmaceutical industries, as it is convenient for quick cleaning, maintenance, and component replacement of equipment pipelines.
• Welded Connection: The valve and pipeline are integrated by welding. It has a firm connection and excellent sealing performance, capable of withstanding high pressure and temperature. However, it is difficult to disassemble after welding, and requires high installation accuracy and welding technology. It is often used in harsh working conditions, such as high - temperature and high - pressure pipelines in petrochemical industries and natural gas transmission pipelines.

Technical Parameters

• Nominal Diameter: Ranges from small sizes like DN20 to larger ones such as DN300, covering a wide variety of application requirements.
• Nominal Pressure: Common values include 0.6MPa, 1.0MPa, 1.6MPa, etc., which determine the pressure - bearing capacity of the valve.
• Applicable Temperature: Varies depending on the diaphragm and body materials. For example, when using a fluororubber diaphragm, the temperature range may be - 30ºC~ + 150ºC; for EPDM, it could be - 10ºC~ + 120ºC.
• Leakage Rate: Usually very low, such as ≤1×10 - 9Pa·M3/S in some high - quality products, to ensure reliable sealing.

Application Fields

• Chemical Industry: Used for controlling the flow of various corrosive and non - corrosive chemical media, such as acids, alkalis, and solvents.
• Food and Beverage Industry: Due to its good sealing and hygiene - friendly characteristics, it is suitable for handling food - grade fluids, ensuring product quality and safety.
• Pharmaceutical Industry: Applied in processes that require high - level hygiene and aseptic conditions, such as in the production of drugs and biological products.
• Environmental Protection Industry: For fluid control in sewage treatment, water treatment, and other environmental protection projects.

• Detailed Photos

   

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  NOD(DN)	OD(mm)	Length(mm)	Height(mm)
  15	21.3	130	220
  20	26.9	140	230
  25	33.7	150	240
  40	48.3	170	260
  50	60.3	200	280
  80	88.9	250	330
  100	114.3	300	380
  150	168.3	350	450
  200	219.1	400	520
  250	273	450	600
  300	323.9	500	680
  400	406.4	600	800
  500	508	700	950

   

  Product Parameters

  

  

  
  

  
  

  

  

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Certifications

 

 

Packaging & Shipping

 

Company Profile

 

Our esteemed company proudly adheres to a diverse array of rigorous standards, including Chinese national, German, British, American, Japanese, and Australian protocols. We specialize in crafting state-of-the-art products with nominal diameters spanning from DN15 to DN3000, pressures ranging from 0.60 Mpa to 6.4 Mpa, and operational temperatures of -20°C to 150°C. Our sophisticated material selection features gray cast iron, ductile iron, cast steel, stainless steel, and duplex steel, ensuring durability and performance. Our expansive product line includes expertly engineered soft-sealed butterfly valves, gate valves, check valves, filters, ball valves, globe valves, balance valves, and our signature diaphragm valves.
Dedicated to unyielding quality and perfection, we have significantly elevated our management practices over the years. Our commitment to excellence and customer satisfaction is evidenced by our attainment of both the ISO9001 Quality Management System Certification and the prestigious British WARS Drinking Water Certification. Our superior products have found esteemed markets across Europe, Asia, Africa, and beyond, garnering widespread trust and acclaim. At Auswell Valve Co., Ltd., we uphold our quality policy with conviction and invite collaboration with industry peers to champion the global prominence of Chinese manufacturing excellence.

Tianjin Auswell Valve Co., Ltd. It is located in a renowned historical town in China, known for its rich military heritage and celebrated for its rice production. Itndustrial Park, Xiaozhan Town, Jinnan District, Tianjin. Our company boasts comprehensive production capabilities, including innovative product design, precision mold manufacturing, advanced machining, efficient rubber smelting, protective epoxy spraying, meticulous valve assembly, and rigorous testing.

Our cutting-edge processing equipment and unparalleled craftsmanship ensure that each product exceeds national and international standards. Driven by a spirit of artistry and innovation, we relentlessly pursue excellence, delivering superior quality products that exceed customer expectations.

 

Our esteemed company proudly adheres to a diverse array of rigorous standards, including Chinese national, German, British, American, Japanese, and Australian protocols. We specialize in crafting state-of-the-art products with nominal diameters spanning from DN15 to DN3000, pressures ranging from 0.60 Mpa to 6.4 Mpa, and operational temperatures of -20°C to 150°C. Our sophisticated material selection features gray cast iron, ductile iron, cast steel, stainless steel, and duplex steel, ensuring durability and performance. Our expansive product line includes expertly engineered soft-sealed butterfly valves, gate valves, check valves, filters, ball valves, globe valves, balance valves, and our signature diaphragm valves.

Our esteemed company proudly adheres to a diverse array of rigorous standards, including Chinese national, German, British, American, Japanese, and Australian protocols. We specialize in crafting state-of-the-art products with nominal diameters spanning from DN15 to DN3000, pressures ranging from 0.60 Mpa to 6.4 Mpa, and operational temperatures of -20°C to 150°C. Our sophisticated material selection features gray cast iron, ductile iron, cast steel, stainless steel, and duplex steel, ensuring durability and performance. Our expansive product line includes expertly engineered soft-sealed butterfly valves, gate valves, check valves, filters, ball valves, globe valves, balance valves, and our signature diaphragm valves.
Dedicated to unyielding quality and perfection, we have significantly elevated our management practices over the years. Our commitment to excellence and customer satisfaction is evidenced by our attainment of both the ISO9001 Quality Management System Certification and the prestigious British WARS Drinking Water Certification. Our superior products have found esteemed markets across Europe, Asia, Africa, and beyond, garnering widespread trust and acclaim. At Auswell Valve Co., Ltd., we uphold our quality policy with conviction and invite collaboration with industry peers to champion the global prominence of Chinese manufacturing excellence.

 

After Sales Service

Our advantage :Hoswell valve company distinguishes itself with a comprehensive set of strengths. We possess in - house independent R & D capabilities, backed by state - of - the - art processing equipment. Our manufacturing processes adhere to industry - leading standards, and we operate a rigorous quality control system.

Product Quality Assurance
Quality Commitment and Inspection: Before leaving the factory, valves need to undergo strict quality inspections, such as pressure tests, sealing tests, etc. It is ensured that there are no casting defects like sand holes or air holes in the valves, and there are no bruises or scratches on the flange sealing surfaces. The markings of flow rate, direction, nominal pressure, diameter, material, etc. are clear and complete. It is promised that the valves are produced and inspected in accordance with national standards, and unqualified products will not leave the factory.
Warranty Period Service: Provide a certain period of warranty service. During the warranty period, for malfunctions caused by product quality problems, the manufacturer will repair or replace parts free of charge.
Technical Support
Pre-sales Consultation: Before customers purchase valves, provide them with professional technical consultations, including suggestions on product selection, specification parameters, material characteristics, applicable working conditions, etc., to help customers choose the most suitable valve products.
Installation Guidance: Provide installation guidance services, which can be carried out online (such as by phone, video, installation manuals, etc.) or offline (by sending technicians to the site) to ensure that the valves are installed correctly and avoid problems caused by improper installation.
Usage Training: Provide usage training for customer operators, enabling them to be familiar with the operation methods of the valves, key maintenance points, knowledge of troubleshooting common faults, etc., and improving the customers' ability to use and maintain the valves.
Supply of Maintenance Parts: Ensure the timely supply of maintenance parts. For the damage of parts outside the warranty period, provide the parts at a reasonable price (such as the cost price).
Regular Follow-up Visits: Regularly conduct follow-up visits to customers, understand the usage situation of the valves, and collect customers' feedback opinions, so as to improve the products and services.
 

FAQ

 

1) Q: Are you a manufacturer or trading company?
A: Hoswell Valve is a professional valve manufacturer with experienced R&D team.

2) Q: Do you have any agent or representative abroad?
A: Yes, we have agents in some countries, they can offer local service for you.

3) Q: What kinds of valve can you supply?
A: We can supply butterfly valve, ball valve, check valve and so on.

4) Q: Do you have any certificate for the valves?
A: Yes, we have CE, BV, ATEX, TS and so on.

5) Q: What's the delivery time?
A: If all the parts of the valve are ready in stock, the valves can be delivered within 7~10 days.

6) Q: What are the countries or regions you supply valves?
A: Hoswell valves have been supplied to USA, Europe, Australia, Singapore, South Africa and so on.