Instrumentation Manifolds

Manifold 20S1 SINGLE BLOCK & BLEED (SBB)

Manifold 20S1 DOUBLE BLOCK & BLEED (DBB)

Manifold 20S2 DOUBLE BLOCK & BLEED (DBB)

20S3 Manifold Block & Bleed Needle Valves

Manifold 20S4 DOUBLE BLOCK & BLEED (DBB)

20S5 Manifold Double Block & Bleed Needle Valves

Specialty pressure manifolds minimize space requirements and reduce installation time necessary to plumb a pressure system. In addition, by reducing the number of components used in a system, manifolds reduce the number of potential leak joints.

BuTech will design and build pressure manifolds to meet specific installation, layout and pressure requirements. These manifolds are capable of withstanding pressure from vacuum to 60,000 PSI (4,140 bar), and are available in a variety of materials and sizes.

Among the pressure connections that can be incorporated are low pressure compression, medium and high pressure cone-and-thread, NPT, SAE, BSP, and others. Transitions in system line sizes and tubing pressure series can be accomplished through a specialty manifold. These manifolds are appropriate wherever pressure tubing systems are utilized.

Configuration Tool

Available Styles

Single Block & Bleed (SBB) Needle Valves
Double Block & Bleed (DBB) Needle Valves
Inline and compact manifold layouts
Multiple configurations and connection sizes
Materials include 316/316L stainless steel and other specialty alloys

Key Benefits

Enhanced Safety

Built-in dual isolation for confidence in critical environments
Fewer leak paths and lower emissions for safer operation
Ready for hazardous fluids and hydrogen applications

Efficiency & Space Savings

One compact valve replaces multiple components
Faster installs, cleaner layouts, less time on site
Streamlined maintenance and easier system access

Reliable Performance

Engineered for severe-service conditions
Smooth, precise needle control every time
Durable materials and flexible connection options for easy integration

CATALOG NUMBER	CONNECTIONS	BLEED	PORT
20S1SBB4M	SBB	1/4" M/P	1/4" M/P
20S1SBB6M	SBB	3/8" M/P	1/4" M/P
20S1DBB4M	DBB	1/4" M/P	1/4" M/P
20S1DBB6M	DBB	3/8" M/P	1/4" M/P
20S2DBB4M	DBB	1/4" M/P	1/4" M/P
20S2DBB6M	DBB	3/8" M/P	1/4" M/P
20S2DBB9M	DBB	9/16" M/P	1/4" M/P
20S3SBB4M	SBB	1/4" M/P	1/4" M/P
20S4DBB4M	DBB	1/4" M/P	1/4" M/P
20S4DBB6M	DBB	3/8" M/P	3/8" M/P
20S5DBB4M	DBB	1/4" M/P	3/8" M/P
20S5DBB6M	DBB	3/8" M/P	1/4" M/P

SINGLE BLOCK & BLEED (SBB)

20S1 Manifold Single Block & Bleed diagram

Catalog Number	Connection	BLEED Connection	MAWP PSI (bar)	Orifice	A	B	C	D	E (Open)	F	G	H	J	K	L
2081SBB4M	1/4" M/P	1/4" M/P	20000 (1379)	.125" (3.18)	4.63" (117.6)	3.63" (92.2)	1.00" (25.4)	4.99" (126.75)	2.63" (66.8)	1.59" (40.38)	2.00" (50.8)	1.50" (38.1)	.75" (19.05)	1.19" (30.22)	2.38" (60.45)
2081SBB6M	3/8" M/P	1/4" M/P	20000 (1379)	.203" (5.16)	4.63" (117.6)	3.63" (92.2)	1.00" (25.4)	4.99" (126.75)	2.63" (66.8)	1.59" (40.38)	2.00" (50.8)	1.50" (38.1)	.75" (19.05)	1.19" (30.22)	2.38" (60.45)

DOUBLE BLOCK & BLEED (DBB)

20S1 Manifold Double Block & Bleed Diagram

Catalog Number	Connection	BLEED Connection	MAWP PSI (bar)	Orifice	A	B	C	D	E (Open)	F	G	H	J	K	L	M
20S1DBB4M	1/4" M/P	1/4" M/P	20000 (1379)	.125" (3.18)	7.26" (184.40)	6.26" (159.0)	3.63" (92.20)	1.00" (25.4)	4.99" (126.75)	2.63" (66.8)	1.19" (30.22)	1.75" (44.45)	1.50" (38.1)	.75" (19.05)	1.19" (30.22)	2.38" (60.45)
20S1DBB6M	3/8" M/P	1/4" M/P	20000 (1379)	.203" (5.16)	7.26" (184.40)	6.26" (159.0)	3.63" (92.20)	1.00" (25.4)	4.99" (126.75)	2.63" (66.8)	1.19" (30.22)	1.75" (44.45)	1.50" (38.1)	.75" (19.05)	1.19" (30.22)	2.38" (60.45)

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DOUBLE BLOCK & BLEED (DBB)

Catalog Number	Connection	BLEED Connection	MAWP PSI (bar)	Orifice	A	B	C	D	E (Open)	F	G	H	J	K	L	M
20S2DBB4M	1/4" M/P	1/4" M/P	20000 (1379)	.125" (3.18)	5.00" (127)	4.25" (107.95)	2.50" (63.5)	.75" (19.05)	5.03" (127.76)	2.75" (69.85)	1.55" (39.37)	2.03" (51.56)	1.50" (38.1)	.75" (19.05)	1.25" (31.75)	2.38" (60.45)
20S2DBR6M	3/8" M/P	1/4" M/P	20000 (1379)	.203" (5.16)	5.00" (127)	4.25" (107.95)	2.50" (63.5)	.75" (19.05)	5.03" (127.76)	2.75" (69.85)	1.55" (39.37)	2.03" (51.56)	1.50" (38.1)	.75" (19.05)	1.25" (31.75)	2.38" (60.45)
20S2DBB9M	9/16" M/P	1/4" M/P	20000 (1379)	.312" (7.92)	7.00" (177.8)	5.75" (146.05)	3.50" (88.9)	1.25" (31.75)	6.25" (158.75)	3.88" (98.55)	2.00" (50.8)	2.75" (69.85)	1.75" (44.45)	.88" (22.35)	1.19" (30.22)	3.00" (76.2)

A high-pressure isolation solution ideal for tight instrumentation layouts. With a consistent 20,000 psi (1379 bar) rating and multiple connection sizes, these valves offer reliable shutoff and venting performance in a smaller footprint than many other DBB models.

Compact design for panel-space efficiency.
High-pressure rating of 20,000 psi across all configurations.
Multiple connection options with a standard 1/4" bleed port.
Optimised flow with orifice sizes up to 0.312" on larger models.
Built on BuTech’s proven durability and precision, ensuring reliable performance in demanding applications.

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SINGLE BLOCK & BLEED (SBB)

Catalog Number	Connection	BLEED Connection	MAWP PSI (bar)	Orifice	A	B	C	D (Open)	E	F	G	H	J	K	L
20S3SBB4M	1/4" M/P	1/4" M/P	20,000 (1379)	.125" (3.18)	4.75" (120.7)	1.19" (30.1)	2.37" (60.2)	3.63" (92.2)	1.75" (44.5)	1.37" (34.8)	1.06" (27.0)	3.00" (76.2)	1.50" (38.1)	1.06" (27.0)	2.25" (57.2)

A single block & bleed solution designed for reliable isolation and venting in critical instrumentation systems. With a full 20,000 psi (1379 bar) rating and a streamlined body layout, these valves provide strong performance in applications where a smaller SBB footprint is preferred.

Compact single-block design with for easy integration into tight panels.
High-pressure capability at 20,000 psi.
Standard 1/4" M/P connections, simplifying compatibility across instrumentation setups.
Efficient flow path via a 0.125" (3.18 mm) orifice sized appropriately for SBB applications.
Built on BuTech’s proven durability and precision, ensuring dependable isolation performance in demanding conditions

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DOUBLE BLOCK & BLEED (DBB)

Catalog Number	Connection	BLEED Connection	MAWP PSI (bar)	Orifice	A	B	C	D (Open)	E	F	G	H	J	K	L (open)	M
2OSADBBAM	1/4" M/P	1/4" M/P	20000 (1379)	.125" (3.18)	5.13" (130.30)	4.00" (101.6)	1.13" (28.70)	5.33" (135.38)	3.00" (76.2)	1.19" (30.1)	1.75" (44.5)	2.38" (60.45)	1.75" (44.5)	1.63" (41.40)	4.03" (102.36)	.80" (20.32)
20S4DBBEM	3/8" M/P	3/8" M/P	20000 (1379)	.203" (5.16)	5.13" (130.30)	4.00" (101.6)	1.13" (28.70)	5.33" (135.38)	3.00" (76.2)	1.19" (30.1)	1.75" (44.5)	2.38" (60.45)	1.75" (44.5)	1.63" (41.40)	4.03" (102.36)	.80" (20.32)

A robust double block & bleed solution with a compact profile and full 20,000 psi (1379 bar) pressure capability. Designed for demanding high-pressure instrumentation applications, these valves offer a balanced combination of strength, streamlined dimensions, and dependable isolation performance, making them well-suited for hazardous and space-constrained environments.

Compact yet durable DBB layout, featuring a short overall length of 5.13" (130.30 mm) with a thickness of 1.75" (44.5 mm) for efficient panel use.
High-pressure rating of 20,000 psi, consistent across all model variants.
Multiple connection options with matching or 1/4" bleed ports.
Engineered with BuTech’s proven precision and reliability, ensuring strong isolation performance in high-pressure and hazardous service environments.

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DOUBLE BLOCK & BLEED (DBB)

20S5 Manifold Block and Bleed Needle Valves Diagram

Catalog Number	Connection	BLEED Connection	MAWP PSI (bar)	Orifice	A	B	C	D (Open)	E	F	G	H	J	K	L	M	N (Open)
20S5DBB4M	1/4" M/P	1/4" M/P	20000 (1379)	.125" (3.18)	4.87" (123.7)	3.69" (93.72)	1.062" (26.97)	5.08" (129)	2.75" (69.85)	1.19" (30.1)	2.06" (52.32)	1.50" (38.1)	.75" (19.05)	1.19" (30.1)	4.69" (119.12)	2.38" (60.45)	2.36" (59.94)
20SSDBBEM	3/8" M/P	1/4" M/P	20000 (1379)	.203" (5.16)	4.87" (123.7)	3.69" (93.72)	1.062" (26.97)	5.08" (129)	2.75" (69.85)	1.19" (30.1)	2.06" (52.32)	1.50" (38.1)	.75" (19.05)	1.19" (30.1)	4.69" (119.12)	2.38" (60.45)	2.36" (59.94)

This series of valves delivers a compact, high-pressure double block & bleed solution with a slightly narrower body profile and efficient geometry compared to other DBB families. With a design optimized for strength and accessibility, these models are well-suited for applications requiring reliable shutoff, venting, and ease of installation in demanding instrumentation systems.

Space-efficient body profile, featuring a short overall length of 4.87 (123.7 mm) and compact dimensions that simplify panel integration.
Consistent 20,000 psi pressure rating, ensuring dependable performance across all variants.
Engineered for strength and reliability, carrying forward BuTech’s proven performance in high-pressure, hazardous service environments.

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BuTech Manifold Valves Catalog 2026

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Document Library

Manifolds

Overview

Available Styles

Key Benefits

Manifold Block & Bleed Needle Valves

20S1 Manifold Block & Bleed Needle Valves

SINGLE BLOCK & BLEED (SBB)

DOUBLE BLOCK & BLEED (DBB)

20S2 Manifold Block & Bleed Needle Valves

DOUBLE BLOCK & BLEED (DBB)

20S3 Manifold Block & Bleed Needle Valves

SINGLE BLOCK & BLEED (SBB)

20S4 Manifold Block & Bleed Needle Valves

DOUBLE BLOCK & BLEED (DBB)

20S5 Manifold Block & Bleed Needle Valves

DOUBLE BLOCK & BLEED (DBB)

Downloads

BuTech Manifold Valves Catalog 2026