DD1V4NU-16DR-HLK-K-V91A Double Block & Bleed Valve by Alco Valves
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The DD1V4NU-16DR-HLK-K-V91A is a single-piece body double block and bleed valve featuring a ball-needle-ball valve configuration with a floating ball design. It is engineered with a 2" Class 900# RF inlet and outlet, alongside a 1/2" NPT female plugged vent and drain conforming to ASME B1.20.1. The valve includes a 10mm (3/8") bore size, an ASTM F51 duplex body material, and ASTM A479 31803 trim materials. For enhanced reliability and safety, it features PEEK, graphite, and Endura V91A seats, seals, and O-rings, plus an X750 anti-static device. Operation is handled via a lockable stainless steel lever and T-bar. Designed to meet NACE MR 01-75 latest revision standards, it operates across a temperature range of -46 ºC to 200 ºC at Class 900 max pressure. Hydrostatic testing is performed in accordance with API 598.
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Frequently Asked Questions(FAQ):
Where can I buy DD1V4NU-16DR-HLK-K-V91A by Alco Valves in the USA?
You can purchase DD1V4NU-16DR-HLK-K-V91A by Alco Valves from PAOParts LLC. We serve customers across the USA, offering competitive prices and reliable service.
What is the price of the DD1V4NU-16DR-HLK-K-V91A?
Price and availability are quoted per request. Send the part number and the quantity you need through our quote request form and you will receive a written offer by e-mail.
Who is the official distributor or seller of Alco Valves in the United States?
While we are not the official distributor or seller of Alco Valves in the United States, we source our products from reliable channels and offer you original Alco Valves equipment at competitive prices.
How can I access DD1V4NU-16DR-HLK-K-V91A catalogs, user manuals, technical documents, and PDFs?
Ask for them in your quote request. We attach the datasheet, catalogue page or manual we hold for DD1V4NU-16DR-HLK-K-V91A to our written reply.
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Characteristics
| Manufacturer | Alco Valves |
|---|---|
| Part number | DD1V4NU-16DR-HLK-K-V91A |
| Inner Code | 3902577 |
Technical specification
| Product type | Double Block & Bleed Valve |
|---|---|
| Valve Configuration | Ball, Needle, Ball |
| Body Type | Single Piece Body, Floating Ball |
| Inlet | 2" CLASS 900# RF |
| Outlet | 2" CLASS 900# RF |
| Vent/Drain | ASME B1.20.1, 1/2" NPT Female - (Plugged) |
| Bore Size | 10mm (3/8") |
| Body Material | ASTM F51 DUPLEX |
| Trim Materials | ASTM A479 31803 |
| Anti-Static Device | X750 |
| Seats/Seals/O-Rings | PEEK/Graphite/Endura V91A |
| Max Pressure | CLASS 900 |
| Max Temperature | 200 ºC |
| Min Temperature | -46 ºC |
| NACE | MR 01-75 LATEST REVISION |
| Operation | STAINLESS STEEL LEVER / T-BAR LOCKABLE |
| Testing | HYDROSTATIC TEST IN ACCORDANCE WITH API 598 |