DD1V4NU-16DR-HLK-K-V91A Double Block & Bleed Valve by Alco Valves

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.

More Alco Valves part numbers

• "SB" 3-way Series
• 10 DMF-9-ONN-4NL-16CR-MO12N-06
• 10 DMF-9-ONN-4NL-24CR-MO12N-06
• 13D1AB88NS-18MSW-XXS/6-F-HLK-V91A-WE
• 19DV4NS-21.375-12-F-UTR-CAN
• 3VBD4NS-TM
• 3VR4NS
• 5VBD4NS-TM-O
• 5VD4NS-TM-0
• 5VR4NS-G
• 5VR4NS-O
• D1E4NL-4DER-D-V91A-WE

See all Alco Valves products

Frequently Asked Questions(FAQ):

---

What is the price of the DD1V4NU-16DR-HLK-K-V91A?

For customized pricing and availability, please fill out ourcontact formor give us a call. We are dedicated to providing solutions that align with your specific requirements.

---

While we are not the official distributor or seller ofAlco Valvesin the United States, we source our products from reliable channels and offer you originalAlco Valvesequipment at competitive prices.

How can I access DD1V4NU-16DR-HLK-K-V91A catalogs, user manuals, technical documents, and PDFs?

---

You can access catalogs, user manuals, and technical documents forDD1V4NU-16DR-HLK-K-V91Aon our website. Visit our resources section or contact us directly for specific documents.

Do you provide technical support for DD1V4NU-16DR-HLK-K-V91A?

---

Do you provide technical support for DD1V4NU-16DR-HLK-K-V91A?

While we do not offer direct technical support, we can assist you in contacting the manufacturer to ensure you receive the support you need.