Haygor Engineered Product
Integrated Double Block & Bleed Diaphragm Seal Assembly
The world’s first all-in-one close-coupled diaphragm seal solution—designed to replace traditional valves and flushing rings in one integrated assembly.
- In-place calibration
- Online seal replacement
- Reduced footprint
One Integrated Solution
Close-coupled design without the traditional component stack.
Haygor’s integrated Double Block & Bleed assembly combines diaphragm seal functionality with a piping-compliant valve design. The result replaces traditional valves and flushing rings while supporting calibration, maintenance, and measurement performance in a reduced-footprint configuration.
Replaces Separate Components
Designed to replace traditional valves and flushing rings with one close-coupled assembly.
In-Place Calibration
Supports calibration at the installed assembly without relying on a traditional flushing-ring arrangement.
Improved Accuracy
A close-coupled configuration designed to support improved measurement accuracy.
Online Seal Replacement
Enables online replacement of diaphragm seals as part of the integrated design.
Reduced Footprint
Consolidates the arrangement into a more compact, close-coupled assembly.
Fugitive Emissions Certified
Designed around the fugitive-emissions compliance requirements listed below.
Seamless Integration With Piping
Piping-compliant construction backed by recognized standards.
The assembly uses an OS&Y piping valve design and fully piping-compliant construction, with listed design, fire-safe, and fugitive-emissions standards.
OS&Y
Outside screw and yoke piping valve design with fully piping-compliant construction.
- ASME B16.34
- API 624
- API 607
- API 6FA
ISO 15848
Class AH compliance as listed in the product information.
Materials & Size Availability
Standard stainless construction with specialty-alloy availability.
Standard construction is AISI 316/L and NACE compliant. Stock and expanded flange-size options support a range of piping requirements, with additional alloys available for demanding service conditions.
- Duplex & Super Duplex
- Incoloy
- Monel
- Hastelloy
- And more
Flange sizes are available from one-half inch through four inches.
NACE-compliant standard material.
Class 150 and Class 300/600 stock flange options.
Find the right integrated Double Block & Bleed assembly for your application.
Send Haygor the required flange size, pressure class, material, and applicable piping, fire-safe, or fugitive-emissions requirements for application review and quotation.