Nai-Lok Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System
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Product Highlights
- SS316 Corrosion Resistance: Manufactured from durable 316 Stainless Steel for excellent corrosion resistance.
- Adjustable Cracking Pressure: Cracking pressure adjustable externally over the entire range with lock wire capability.
- Compact Design: Compact body designed for installation in small spaces within instrumentation systems.
- 100% Factory Tested: All units undergo 100% factory testing for crack and reseal performance.
- Multiple Spring Options: Available with Blue, Yellow, or Purple springs covering various pressure ranges.
- Flexible Customization: Offers flexible, minor, and full customization options including designs and samples.
- ISO Certified Quality: Product meets ISO certification standards for industrial safety and reliability.
Product Attributes
- Customization
- Available
- Media
- Gas
- Certification
- ISO
- Model NO.
- RV
- Temperature
- Low Temperature
- Connection
- Thread
- Pressure
- Adjustable
- Structure
- Spring
- Material
- Stainless Steel
- Valve Style
- Relief Valve
- Port Size
- 1/4-1/2 Inch
- Body Material
- SS316/Hastolly
- Working Pressure
- RV1: 300psi
- Application Field
- Industrial Usage
- Keywords
- Relief Valve
- End Connection
- Female/ Male/ Nai-Lok Tube Fitting
- Handle
- Black Nylon/ Butterfly/ Lever
- Working Pressure RV
- RV2: 6000psi
- Spring Types
- Blue: 15-225psi; Yellow: 225-750psi;
- Transport Package
- Box Packing
- Specification
- 1/4''-1/2''
- Trademark
- NAI-LOK
- Origin
- China
- HS Code
- 8481300000
- Production Capacity
- 1000/Month
- Package Size
- 30.00cm * 12.00cm * 10.00cm
- 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 Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System
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Nai-Lok Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System -
Nai-Lok Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System -
Nai-Lok Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System -
Nai-Lok Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System -
Nai-Lok Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System -
Nai-Lok Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System -
Nai-Lok Relief Valve 1/4" NPT Male X Female SS316 Cracking Pressure 10-225psi for Instrument System
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Product Description
NAI-LOK Stainless Steel Relief Valve is a high-performance safety component designed for use in instrumentation, gas delivery, and process control systems. This valve features a compact design with 1/4" Male NPT x Female NPT ends, manufactured from durable SS316 stainless steel for excellent corrosion resistance and long service life.
With a preset cracking pressure of 10-225 psi, the valve protects systems by releasing excess pressure and preventing over-pressurization. Ideal for gases and liquids in critical applications where system safety and pressure control are essential.
Technical Date
RV1 Series
-Cracking pressure Range:15-225psig to atmosphere
- Max working pressure: 300psig
- Operating Temperature Range: -10ºF to 400ºF(-23ºC to 204ºC)
- Orifice size:4.8mm(0.19in)
- Cracking pressure adjustable externally
- Lock wire capability to maintain pressure relief setting
- 100% factory tested crack and reseal performance
| Relief Valve Type | Industrial valve, instrumentation valve |
| Style | Forged,Casting |
| Size | Industrial valve DN15-DN150 Instrumentation valve: 1/4 to 1/2 inch |
| Cracking Pressure Range | RV1: 15-225 psi/ 1-15.5 bar to atmosphere RV2: 225-1500 psi/ 16-104 bar to atmosphere |
| Body Material | 316 Stainless Steel |
| Max. Working Pressure | RV1: 300 psi/ 21 bar RV2: 6000 psi/ 414 bar |
| Spring Types | Blue: 15-225 psi/ 1-15.5 bar Yellow: 225-750 psi/ 15.5-51.5 bar Purple: 750-1500 psi/ 15.5-104 bar |
Operating Temperature Range |
-10°F to 400°F(-23°C TO 204°C) |
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 cracking pressure range for the RV1 series?
- The RV1 series has a cracking pressure range of 15-225 psi (1-15.5 bar) to atmosphere.
- What materials are used for the valve body?
- The valve body is made of 316 Stainless Steel, with options for SS316 or Hastelloy.
- Can the cracking pressure be adjusted?
- Yes, the cracking pressure is adjustable externally, and a lock wire can be used to maintain the setting.
- What is the maximum working pressure for RV1 and RV2?
- RV1 has a max working pressure of 300 psi (21 bar), while RV2 can handle up to 6000 psi (414 bar).
- What connection sizes are available?
- Available sizes range from 1/4 inch to 1/2 inch, with Male NPT x Female NPT ends.
- Is customization available for this valve?
- Yes, we offer flexible, minor, and full customization, including options from designs and samples.
- What is the lead time for production?
- The average lead time is within 15 workdays for both peak and off-peak seasons.
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