General Valve

General Twin Seal
Double Block & Bleed

Introduced in 1941, GENERAL VALVE Twin Seal plug valves, also known as a Double Block and Bleed Valve, were the first to meet the rigid requirements of double block-and-bleed service. In the years since, subtle yet significant design refinements have further improved valve performance. Superior design innovations, pride in manufacturing workmanship, and selection of the best materials support our commitment to excellence and customer satisfaction.

Get Quote
Call (724) 942-1000
General Valve Twin Seal General Valve
Stock Available Today 2″ - 24″, ANSI 150# - #900
Zero-Leakage Double Block-and-Bleed Plug valve with retracting seals
Fire-Safe Certified Per API 607 / ISO 10497

Double Block & Bleed

Twin Seal

2" – 24" · ANSI Class 150–900

The General Twin Seal Double Block & Bleed valve provides positive double isolation with a single valve body, eliminating the need for separate block-and-bleed valve assemblies. Ideal for pipeline isolation, instrument take-off points, and process critical applications.

  • Single-body double isolation — upstream and downstream seats seal independently
  • Integral bleed port allows cavity venting without removal from line
  • Available in full-bore and regular-bore configurations
  • Fire-safe per API 607 / ISO 10497
  • Sizes 2" through 24" in ANSI Class 150 through 900
  • Carbon steel, stainless steel, and exotic alloy trim options
Request Quote
(724) 942-1000
General Valve Twin Seal General Valve

Manuals

Catalog GENERAL Twin Seal Catalog
Operation & Maintenance GENERAL Twin Seal
Operation & Maintenance GENERAL TruSeal
Animation Slips Replaced In-Line
Animation Twin Seal Valve Seating Area
Animation Differential Thermal Relief (DTR)
Animation Twin Seal Valve Disassembled

Resources

How it Works Double Block-and-Bleed and Double Isolation-and-Bleed
Operation & Maintenance GENERAL Valve Solutions
Operation & Maintenance Valve Solutions for Offshore Production
How it Works Valve Solutions for Liquid Tank Storage
Operation & Maintenance Valves for Heavy Oil Applications

Locations

Two Locations to Serve You

Open in Maps
Office

Pittsburgh, PA

Energy Products Company
3970 Washington Rd
Canonsburg, PA 15317
(724) 942-1000 info@energyproductsco.com
Open in Maps
Office

Houston, TX

Energy Products Company
9808 Emily Ln
Stafford, TX 77477
(724) 942-1000 info@energyproductsco.com

Ready to request a quote?

Our team responds same day. In-stock items typically ship within 48 hours.

Email Us
(724) 942-1000