Nailok Factory Design Adjustable High Pressure Compression Ends 6000 Psi Relief Valve
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Product Highlights
- External Adjustability: Fine-tune cracking pressure without disassembly to reduce maintenance downtime.
- High Pressure Capacity: Supports up to 6000 psi working pressure for ultra-high pressure applications.
- Compact Space-Saving Design: Small body allows easy installation in tight spaces where traditional valves cannot fit.
- Lock Wire Capability: Ensures pressure relief settings remain secure and prevents accidental adjustments.
- 100% Factory Tested: Guaranteed crack and reseal performance for reliable, leak-free operation.
- Stainless Steel Construction: Made of SS316 stainless steel for durability in oil, gas, and industrial pipelines.
- Low MOQ for Customization: Minimum Order Quantity is just 1 piece, allowing flexible sample and custom orders.
Product Attributes
- Customization
- Available
- Media
- Oil Gas
- Material
- Stainless Steel
- Model NO.
- relief valve
- Connection Form
- Thread Od
- Driving Mode
- Manual
- Channel
- Angle /Straight/ 3 Way
- Structure
- Relief Valve
- Type
- Relief Valve
- Temperature
- High Temperature
- Standard
- ASTM
- Application
- Industrial Usage, Pipeline
- MOQ
- 1 PCS
- Payment
- T/T,Paypal
- Brand
- Nailok /OEM
- OEM Qty
- 100 PCS
- Transport Package
- Carton
- Specification
- 50x40x30
- Trademark
- Nai-Lok /OEM
- Origin
- China
- HS Code
- 8481804090
- Package Size
- 25.00cm * 25.00cm * 25.00cm
- Package Gross Weight
- 3.000kg
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 Nailok Factory Design Adjustable High Pressure Compression Ends 6000 Psi Relief Valve
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Product Description
Stainless Steel Ball Valves 1 PC NO LEAKAGE

The NAI-LOK Relief Valve is a high-performance safety valve designed for applications requiring precise pressure control in confined spaces. Its compact design, external adjustability, and robust construction make it ideal for industries such as oil & gas, chemical processing, and power generation.
Key Features & Benefits
Space-Saving Design - Compact body allows easy installation in tight spaces where traditional relief valves cannot fit.
Externally Adjustable Cracking Pressure - Fine-tune pressure settings without disassembly, reducing maintenance downtime.
Lock Wire Capability - Ensures pressure relief settings remain secure, preventing accidental adjustments.
100% Factory Tested - Guaranteed crack and reseal performance for reliable, leak-free operation.
Wide Temperature Range - Operates reliably in extreme conditions (-23°C to 204°C / -10°F to 400°F).
Precision Orifice Size (4.8 mm / 0.19 in) - Optimized flow control for consistent pressure management.
Outlet Pressure Sensitivity - Cracking pressure adjusts based on downstream conditions for enhanced system safety.
Features:
-
Compact body, for installation in small space
Operating temperature range:- 10°F to 400 (-23ºC to 204ºC)
Cracking pressure, adjustable extemaily
Orifice size:4.8mm(0. 19in)
Lock wire capability ,to maintain pressure relief setting
Cracking pressure: is affected by the outlet pressure
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
Technical Date:
| Product Name | RV Series Relief Valve |
| Cracking Pressure Range | RV1:15-225 psig / 1-155 bar to atmosphere RV2: 225-1500 psig /16-104 bar to atmosphere |
| Max working pressure | RV1: 300 psig /21 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 |







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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.
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 RV Series Relief Valve supports a maximum working pressure of up to 6000 psi (414 bar).
- Can the cracking pressure be adjusted?
- Yes, the cracking pressure is externally adjustable, allowing you to fine-tune settings without disassembling the valve.
- What is the Minimum Order Quantity (MOQ)?
- The MOQ is 1 piece, making it suitable for samples and small custom orders.
- Is the valve suitable for oil and gas applications?
- Yes, it is designed for industrial usage, including oil & gas, chemical processing, and power generation pipelines.
- Does the valve have a lock wire feature?
- Yes, it includes a lock wire capability to ensure pressure relief settings remain secure and prevent accidental adjustments.
- What materials are used in the valve?
- The valve is constructed from Stainless Steel (SS316) to ensure durability and resistance to corrosion.
- What payment terms are accepted?
- We accept payment via T/T (Telegraphic Transfer) and PayPal.
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