Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment
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Product Highlights
- UHP Pneumatic Design: Engineered for semiconductor and photovoltaic industries with automated pneumatic control.
- High Pressure Rating: Supports working pressures up to 20.5 MPa (3000 psi) for demanding gas and vacuum applications.
- Leak-Tight Connection: 1/4 Male Face Seal configuration ensures secure, leak-tight connections for ultra-clean process lines.
- Cleanroom Certified: Cleanroom assembly meets ISO Class 4 or better standards with double bagged Class 100 packaging.
- Flexible Customization: Offers full customization, minor customization, and flexible options from samples or designs.
- Versatile Actuation: Pneumatic actuator available in Normally Closed or Normally Open options for remote control.
Product Attributes
- Customization
- Available
- Media
- Oil
- Temperature
- Ordinary Temperature
- Model NO.
- UDB Diaphragm Valve
- Actuator
- Manual
- Connection
- Welded Diaphragm Valve
- Material
- Stainless Steel
- Structure
- Through Way Diaphragm Valve
- Pressure
- High Pressure
- Flow Direction
- Reversing
- Usage
- Flow Control
- Standard
- ANSI
- Keyword
- UHP Diaphragm Valve
- Power
- Manual
- Size
- 1/4''face Seal Female
- Province
- Shanghai
- MOQ
- 20
- Inlet Pressure
- 2500psi
- Body Material
- Stainless Steel 316L
- Outlet Vacuum
- 1 to 150psi
- Flow Rates
- Hf Option to 120 Slpm
- Suitable Gas
- High Purity Gas
- Application
- Semiconductor
- Surface Finish
- 10 μim
- Type
- Single Stage
- Transport Package
- Box Packing, Carton Box, Wooden Case
- Specification
- 1/4-1/2inch
- Trademark
- NAI-LOK
- Origin
- China
- HS Code
- 8481100090
- Production Capacity
- 10000/Month
- Package Size
- 36.00cm * 20.00cm * 15.00cm
- Package Gross Weight
- 1.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment
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Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment -
Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment -
Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment -
Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment -
Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment -
Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment -
Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment
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Product Description
The NAI-LOK UDB-P Series Ultra High Purity (UHP) Pneumatic Diaphragm Valve is engineered for critical gas and vacuum applications in semiconductor, photovoltaic, and high-tech industries. Featuring a 316L stainless steel body with an electropolished surface (Ra ≤ 0.25 μm), it delivers exceptional corrosion resistance and particle-free performance.
This 1/2" Male Face Seal configuration ensures leak-tight connections for ultra-clean process lines. The valve supports working pressures up to 20.5 MPa (3000 psi) and is suitable for both high-purity gases and vacuum systems. The pneumatic actuator enables automated control, providing consistent, reliable operation in demanding environments.
Designed with minimal dead space, high Cv flow performance, and cleanroom assembly, the UDB-P valve meets stringent semiconductor-grade purity requirements.
Key Features
-
Material: 316L stainless steel, electropolished (BPE / SEMI standard)
-
Connection: 1/2" Male Face Seal (compatible with standard VCR®-type fittings)
-
Operation: Pneumatic actuator for remote control
-
Pressure Rating: 20.5 MPa (3000 psi)
-
Media Compatibility: Ultra-pure gases, vacuum, specialty gases
-
Cleanroom Assembly: ISO Class 4 or better
-
Diaphragm: Metal-to-metal seal for zero particle generation
-
Application Industries: Semiconductor, photovoltaic, laboratory, analytical instrumentation
| Parameter | Specification |
|---|---|
| Model | UDB-P Series |
| Valve Type | Pneumatic Diaphragm Valve |
| Body Material | SS316L (BPE / SEMI electropolished) |
| Connection Size | 1/4" Male Face Seal |
| Actuation | Pneumatic (Normally Closed / Normally Open options) |
| Max Working Pressure | 20.5 MPa (3000 psi) |
| Working Temperature | -10°C to +66°C (14°F to 150°F) |
| Surface Roughness | Ra ≤ 0.25 μm (10 μin) |
| Cleanroom Packaging | Double bagged in Class 100 cleanroom |
| Applications | UHP gas lines, vacuum systems, semiconductor fabs |
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI264759". Items marked "
" are certified.
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Company Profile
Established in 2000, NAI-LOK has made a name of itself in the list of top suppliers of in China. We focus on the production, research and development, sales of instrumentation valves and alloy valves. We have more than 20 years of precision valve manufacturing and 10 years of export experience.
Our strict control and management of the entire production process enables us to provide products that meet our customers' requirements for product safety, functionality and design at competitive prices, while ensuring the shortest lead times in the market.
We have the capability to manufacture and supply 4 different product categories, including:
1. General Instrumentation Valves and Fittings
2. High Purity & Ultra High Purity Products- NAI-LOK UHP PRODUCTS, Regulator, Bellows Valve, 3 PC high purity ball valve, Diaphragm Valve, Weld Fitting, Face seal Fitting, Gas Stick.
3. Hose & Tubing
4. Special Alloy Valves, fitting and tubings. Including material S31254 (6 Moly), Alloy 400, HC-276, C22, B3, Alloy 625, Duplex steel 2205 /2507 etc.
We hope there will be opportunities for cooperation.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 397 Damuqiao Road, Shaxi Town, Taicang City, Suzhou, Jiangsu, China
-
Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: one month -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1 Piece
Our Production Capability & Technical Expertise
- Main Products
- Gas Delivery System, Ball Valve, Pressure Regulator, Alloy Valve, 2/3/5 Valve Manifold, Instrumentation Ball Valves, Sample Cylinder, Pipe & Tube Fittings, Needle Valve, Hose & Tubing
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
-
Repeat Buyers Choice
- 50%~80%
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015, ISO14001
FAQ
- What is the maximum working pressure?
- The valve supports working pressures up to 20.5 MPa (3000 psi).
- Is customization available for this valve?
- Yes, customization is available including full customization, minor customization, and flexible options from samples or designs.
- What is the minimum order quantity?
- The minimum order quantity is 1 piece.
- What are the payment terms?
- Payment terms include LC (Letter of Credit) and T/T (Telegraphic Transfer).
- What is the lead time for production?
- Peak season lead time is within 15 workdays, while off-season lead time is one month.
- What certifications does the product meet?
- The product meets BPE/SEMI standards and is assembled in a cleanroom environment (ISO Class 4 or better).
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Product Groups
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- Nai-Lok Ultra High Purity 1/4 Male/Female Metal Face Seal High Pressure 20.5MPa Diaphragm Valve for Semiconductor Specialty Gases Equipment
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