Nai-Lok 1 Inch Super Duplex 2507 Forged Monoflange Class 1500 Double Block and Bleed Valve for Marine

• Customization: Available
• Power: Manual
• Connection Mode: Internal Thread
• Model NO.: Monoflange valve
• Material: Stainless Steel
• Pressure: High Pressure
• Standard: Standard
• Media: Oil, Gas, Water,Acid
• Media Temperature: High Temperature
• Valve Pressure: High Pressure 6000psi
• Industrial: Oil and Gas Industrial
• Body: SS316/ Alloy Valve Manifolds
• Delivery: Fast Delivery
• Transport Package: Carton Packaging
• Specification: 1/2''
• Trademark: NAI LOK
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000
• Package Size: 40.00cm * 30.00cm * 25.00cm
• Package Gross Weight: 1.000kg

Product Description

NAI-LOK 1 Inch Super Duplex 2507 Forged Monoflange Class 1500 Double Block and Bleed Valve for Marine

Product Description

The NAI-LOK 1 Inch Super Duplex 2507 Forged Monoflange Class 1500 Double Block and Bleed Valve for Marine are designed for reliable isolation, venting, and pressure control in demanding process and instrumentation systems.

Manufactured from Stainless Steel 2507, these monoflange valves combine a block valve and a bleed valve into a compact design, reducing the number of leak paths while improving safety and efficiency. With a 6000psi pressure rating, the valves are suitable for low to medium pressure process applications in oil & gas, petrochemical, chemical processing, and power generation.

The 2-way manifold design ensures accurate flow control while minimizing installation space. Each valve is engineered for high integrity sealing, easy operation, and long service life under harsh working environments.

Product Description:
1.Press up to 10000psig (414bar) for standard stainless steel body
2.Temperature for PTFE packing from -65°F to 450°F (-54°C to 232°C)
   Temperature for Grafoil packing from -65°F to 1200°F (-54°C to 649°C)
3.Packing below stem thread isolates the thread lubricant from the media
4.Back seating design protects the packing in fully open position
5.Non-rotating stem tip
6.100% factory tested

1. Instrumentation Manifolds Features:

• Efficiency Improvement and Energy Saving.

• Suitable for confined spaces as its compact size.

• Installation cost-saving as its elaborate design.

• Miner leakage possibility leads to low maintenance.

• Fewer connections improve system layout.
 

2. Variety of Valve Manifolds

• Body Type: In-line, Coplanar, Integral

• Mounting Style: Remote mounting, Direct mounting

• Number of Valves / Layout: 2-way, 3-way, 5-way

3. Instrumentation Manifolds General data:

• Pressure Range: 5000Psi-6000Psi(344Bar-413Bar)

• Working temperatures: 232°C-649°C (450°F-1200°F)

• Inlet/outlet/test/vent: NPT1/4-NPT1/2, flange, optional

• Application: Liquid or Gas, Steam, Water, Oil

• Body Material:316,316L, Alloy
 

4. Applications of Valve Manifold

• Oil and gas

• Chemical

• Power Plant

• Nuclear Energy

• Water Treatment

• Steel

Product Parameters

 

Item	Specification
Model	2-Way Manifolds Valve
Brand	NAI-LOK
Body Material	Stainless Steel 2507
Seat Material	PTFE
Connection Size	1/2" Female NPT
Valve Type	2-Way, Straight Pattern
Working Pressure	Up to 6000 psi (414 bar)
Temperature Range	-20°C to +180°C
Operation	Manual
Application Media	Corrosive fluids, Seawater, Acids, Gases
Industry Applications	Marine, Petrochemical, Offshore, Chemical Plants
End Connections	NPT (customizable BSPP/BSPT available)
Testing Standard	Factory Leak Tested at 1000 psi Nitrogen
Certification	ISO 9001:2015,

 
 

Material / Alloy	UNS Number	Main Characteristics
Hastelloy® C276	UNS N10276	Excellent resistance to strong oxidizers, chlorine, and a wide range of chemical environments.
Hastelloy® B2	UNS N10665	Outstanding resistance to hydrochloric acid at all concentrations and temperatures.
Hastelloy® B3	UNS N10675	Better thermal stability and corrosion resistance than B2, especially against hydrochloric acid.
Hastelloy® C22	UNS N06022	Superior resistance to oxidizing aqueous media, including wet chlorine and nitric acid.
Inconel® 600	UNS N06600	Excellent resistance to oxidation and corrosion, good strength at high temperatures.
Inconel® 625	UNS N06625	High strength and outstanding fatigue and thermal-fatigue resistance, excellent corrosion resistance.
Incoloy® 800H / 800HT	UNS N08810 / N08811	Good strength and oxidation resistance at elevated temperatures, used in heat exchangers and furnace components.
Monel® 400	UNS N04400	High strength and excellent resistance to seawater, acids, and alkalis.
Alloy 20	UNS N08020	Excellent resistance to sulfuric acid, used in chemical and petrochemical industries.
Alloy 254 SMO® (6Mo)	UNS S31254	Superior resistance to pitting, crevice corrosion, and chloride stress corrosion cracking.
Super Duplex® 2507	UNS S32750	High mechanical strength and resistance to pitting, crevice corrosion, and stress corrosion cracking.
Duplex 2205	UNS S32205	Balanced austenitic-ferritic structure, good resistance to chloride stress corrosion cracking.
904L Stainless Steel	UNS N08904	Excellent resistance to strong reducing acids (sulfuric acid), superior to 316L in corrosion performance.
Alloy C4	UNS N06455	Excellent resistance to strong oxidizing agents, even at elevated temperatures.
Alloy 825 (Incoloy® 825)	UNS N08825	Good resistance to sulfuric and phosphoric acids, widely used in chemical processing.

Detailed Photos