Monoflange SBB & SB Needle Valves

Isolation and bleed functions integrated in a single forged body, space-saving solution for safety-critical installations

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What Are Monoflange SBB & SB Valves?

Indra Monoflange SB and SBB valves integrate isolation and bleed functions into one robust unit, simplifying piping layouts while ensuring high integrity and operational reliability. Designed for space-saving and safety-critical installations, they provide a compact alternative to traditional multi-valve assemblies for connecting process piping to pressure measurement systems.

Connection options are available in Flange/Flange or Flange/Threaded configurations for seamless integration into any process system. Flange faces are supplied in Flat Face (FF), Raised Face (RF), or Ring Joint (RTJ) finishes to meet diverse sealing requirements.

In addition to standard configurations, Indra’s engineering team develops custom solutions tailored to specific customer requirements, including versions for low temperature and cryogenic service.

✓Isolation and bleed in one forged body, fewer connections, reduced leak risk, simplified installation

Technical Specifications

Pressure Rating

ASME 150 | ASME 300 | ASME 600 | ASME 900 | ASME 1500 | ASME 2500 | API 10000 | API 15000

Models

717 – FLxF | 727 – FLxF | 718 – FLxFL | 728 – FLxFL

Flange Face

Raised Face (RF) | Ring Joint (RTJ)

Connection In

1/2" | 3/4" | 1" | 1½" | 2"

Connection Out

1/4" NPT-F (optional) | 1/2" NPT-F | Flanged as inlet | Integral for tubing connection

Vent

1/4" NPT-F (optional) | 1/2" NPT-F | Integral for tubing connection

Materials

C.S. A105 | C.S. A350 LF2 | SS 316/316L Dual Grade | Duplex F51 | Superduplex F53 | Superduplex F55 | Inconel 625 | Incoloy 825 | Monel 400 | Hastelloy C276 | Titanium | On demand, NACE-compliant versions available upon request

Seal

PTFE | Graphite | On demand

Key Features

Compact Installation

Integrated design minimizes footprint, ideal for skids and space-constrained installations where traditional multi-valve assemblies would not fit.

Reduced Leak Paths

Fewer flanged connections significantly lower the risk of fugitive emissions compared to conventional separate valve and fitting assemblies.

Sealing Flexibility

Flange faces supplied in Flat Face (FF), Raised Face (RF), or Ring Joint (RTJ) finishes to meet diverse sealing requirements across different process systems.

Safety Locking

Optional padlockable handles or locking pins to prevent unauthorized or accidental operation on safety-critical installations.

Configuration Options

Distribution Monoflange SBB & SB Needle Valves can be customized to meet your specific requirements:

Design

• SB (Single Block)
• SBB (Single Block & Bleed)

End Connections

• Flange/Flange (FLxFL)
• Flange/Threaded (FLxF)

Special Features

• Raised Face (RF)
• Ring Joint (RTJ)

Where Monoflange SBB & SB Needle Valves Excel

Distribution Monoflange SBB & SB Needle Valves are the ideal choice for:

Pressure gauge and transmitter isolation on flanged process connections, replacing multi-valve assemblies with a single compact body

Space-constrained skids and platforms where a conventional installation would exceed available footprint or weight limits

Safety-critical installations requiring padlockable operators to prevent unauthorized valve operation

Low temperature and cryogenic service, engineered versions available for LNG, LIN, LOX, and similar applications

Need double isolation?

Explore our Monoflange DBB valves for maximum process safety with double block and bleed in one body.

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