Pressure control. In one assembly.
BuTech | Combined isolation and pressure-release valves
BuTech needle-valve manifolds combining isolation and pressure release in process and control systems.
BLOCK & BLEED VALVES
Main applications
- Instrumentation systems
- Process control
- Test circuits
- Choose the configuration
- Single isolation (SBB) or double (DBB), with pressure release.
- Reduce connections
- Multiple functions in one assembly for compact system design.
- Match the system
- Select connections, materials and operating pressure according to specification.
Allowable working pressure and material compatibility are checked by model, liquid or gas and operating conditions.
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Original artwork in Hebrew; the publication text is available on this page.
Isolation and pressure release. Clearly specified.
BuTech needle-valve manifolds | Examples from the 20S1 series
- Maximum allowable working pressure for the models in the table
- 20,000 psi
- Equivalent pressure value in the catalogue
- 1,379 bar
- Single or double isolation, with pressure release
- SBB / DBB
20S1 models | MP medium-pressure connections
| Model | Configuration | Main connection | Pressure release | Bore diameter mm | Dimension A mm |
|---|---|---|---|---|---|
| 20S1SBB4M | SBB | 1/4" | 1/4" | 3.18 | 117.6 |
| 20S1SBB6M | SBB | 3/8" | 1/4" | 5.16 | 117.6 |
| 20S1DBB4M | DBB | 1/4" | 1/4" | 3.18 | 184.4 |
| 20S1DBB6M | DBB | 3/8" | 1/4" | 5.16 | 184.4 |
All connections in the table are of type MP (Medium Pressure). Dimension A is the overall length according to the manufacturer's drawing; do not substitute this connection with NPT or BSP.
Design, dimensions and configuration selection
- SBB
- One isolation valve and one pressure-release valve in a single assembly
- DBB
- Two isolation valves and one pressure-release valve in a single assembly
- Height when open
- 126.75 mm in models 20S1 in the table, according to the drawing
- Construction materials
- The catalogue presents stainless steels 316 / 316L and other alloys; verify the material by order code
- Other configurations
- The catalogue also includes series 20S2 / 20S3 / 20S4 / 20S5; in series 20S2 a main-connection configuration is also available 9/16" MP
For manifold selection
Isolation configuration • Pressure and temperature • Fluid type • Main and pressure-release connections • Construction materials • Space constraints.
Pressures and dimensions on this page apply to the models listed in the table. Final drawings and order specifications are required before system integration.
Brochure source: BuTech Manifold Valves Catalog 2026 · pages 1-3. Data is taken from existing materials; suitability is checked against the model and current manufacturer document.