High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve
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Product Highlights
- Proportional Relief Design: Smooth pressure control with gradual opening for reliable overpressure protection.
- Adjustable Cracking Pressure: Factory-set or field-adjustable to accommodate changing operating requirements.
- High-Quality Material: Constructed from durable SS316 stainless steel for demanding environments.
- Factory-Tested Reliability: 100% tested for crack and reseal performance with locked settings.
- Versatile End Connections: Compatible with tube fittings or male/female NPT threading.
- Compact Space-Saving Design: Ideal for installation in tight spaces with easy tuning without disassembly.
- Flexible Customization: Offers full, minor, and design-based customization options for specific needs.
Product Attributes
- Customization
- Available
- Media
- Gas
- Temperature
- Ordinary Temperature
- Model NO.
- Relief Valve
- Connection
- Thread
- Pressure
- Non-Ajustable
- Closed
- Semi-Closed
- Structure
- Spring
- Material
- Stainless Steel
- Max Working Pressure
- 300psi /6000psi
- Operating Temperature
- -23 -204c
- End Connection
- Female X Male / Double Ferrule
- Delivery
- in Stock
- MOQ
- 1 PCS
- Transport Package
- Carton
- Specification
- 1/4"
- Trademark
- NAI-LOK
- Origin
- China
- Production Capacity
- 1000000pieces/Years
- Package Size
- 50.00cm * 50.00cm * 30.00cm
- Package Gross Weight
- 20.000kg
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 High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve
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High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve -
High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve -
High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve -
High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve -
High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve -
High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve -
High Pressure Safety Valve Stainless Steel Pressure Relief Valve Gas Liquid Inner and Outer Wire Proportional Unloading Valve
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Product Description
NAI-LOK® RV Series Proportional Relief Valves - Reliable Overpressure Protection
NAI-LOK® RV Series proportional relief valves provide simple, reliable overpressure protection for industrial applications. Designed to open gradually as pressure increases, these valves help protect workers and maintain proper process conditions.The set pressure can be configured at the factory or easily adjusted in the field to accommodate changing operating requirements. Each valve is factory-set, tested, locked, and tagged with its specified pressure setting for guaranteed performance.
Key Features
Proportional Relief Design - Smooth pressure control with gradual opening
Space-Saving Design - Compact body ideal for installation in tight spaces.
Externally Adjustable Cracking Pressure - Easy tuning without disassembly.
Factory-Tested Reliability - 100% tested for crack and reseal performance.
Wide Temperature Range - Operates from -10°F to 400°F (-23°C to 204°C).
Secure Pressure Setting - Lock wire ensures settings remain intact.
Versatile End Connections - Compatible with tube fittings or male/female threading.
NAI-LOK PSV Factory High Quality Spring Load SS316 Pressure Safety Valve Cracking Pressure 2500psi 1/2 male npt Inlet and Outlet female NPT 225psi Relief Valve
Technical Specifications
-
Orifice Size: 4.8 mm (0.19 in)
-
Cracking Pressure: Adjustable (affected by outlet pressure)
-
Material: High-quality construction for durability
-
Testing: Full factory validation for crack and reseal performance
| Product Name | RV Series Relief Valve |
| Cracking Pressure Range | RV1:15-225 psig / 1-155 bar to atmosphere RV2: 225-6000 psig /16-414 bar to atmosphere |
| Max working pressure | RV1: 500 psig /34 bar RV2: 6000 sig/414 bar |
| Spring Types | Blue:15-225 psig /1-15.5 bar Yellow.225-750 psig/15.5-51.5 bar Purple:750-1500 psig /51.5-104 bar |
| RV1 | N | 4 | S | ||||
| Basic Series | End Connection | Size | Cracking pressure | Material | |||
| RV1 RV2 |
N-NAI-LOK F-Female NPT M-Male NPT |
4-1/4in. 6-3/8 in. 8-1/2 in. |
L-15-225psi(2.5-15.5bar) A-220-350psi(15.1-24bar) B-350-750psi(24-51.6bar) C-750-1500psi(51.6-103bar) D-1500-2250psi(103-155bar) E-2250-3000psi(155-206bar) F-3000-4000psi(206-275bar) G-4000-5000psi(275-344bar) H-5000-6000psi(344-413bar) |
S-316 Stainless steel | |||
Hydraulic systems / Pneumatic controls /Process instrumentation /Industrial machinery
Precision Engineering - Ensures consistent pressure management.
Durable & Reliable - Built for demanding environments.
Easy Installation & Maintenance - User-friendly design.
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
- Can the pressure setting be adjusted?
- Yes, the set pressure can be configured at the factory or easily adjusted in the field.
- What materials are used for the valve?
- The valve is made of high-quality SS316 stainless steel.
- What are the available pressure ranges?
- RV1 ranges from 15-225 psig, and RV2 ranges from 225-6000 psig.
- Is the valve tested before shipping?
- Yes, every valve is 100% factory-tested for crack and reseal performance.
- What types of end connections are available?
- Compatible with tube fittings or male/female NPT threading.
- What is the minimum order quantity?
- The MOQ is 1 piece.
- Is customization available?
- Yes, flexible customization including full, minor, and design-based options is available.
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