Second Stage Zone Control Units

2nd Series

Medicabay Healthcare Systems introduces the 2nd Stage Zone Control Units (2ND), an advanced solution designed for precise medical gas regulation. Utilizing cutting-edge technology, 2NDs efficiently regulate and monitor medical gas pressures at the entrance of critical healthcare areas, ensuring uninterrupted and reliable gas delivery to operating rooms, intensive care units, and other medical environments.

10 → 4 Bar
2nd Stage Regulation
Single / Double
SN & DN Redundancy
1 to 6 Gases
O₂, Air, VAC, N₂O, CO₂
MS58 Brass
ISO 15001 Degreased
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Second Stage Zone Control Units
2nd Stage Zone Control Unit
Critical Ward Protection

AVSU ( ZSU ) WITH 2ND STAGE PRESSURE REGULATOR

Precision line reduction, dual failover redundancy, and integrated digital telemetry for surgical wards.

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Precision 4 Bar Control

Engineered as a dedicated Regulator Based Avsu to step down 10 bar pipeline risers into steady 4 bar terminal pressures with zero surge.

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SN & DN Redundancy

Each Pressure Regulator Avsu provides single or dual line regulators to ensure uninterrupted gas flow during maintenance.

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Compliance

Medicabay Second-stage pressure regulators & AVSU units comply with ISO 7396-1 and ISO 10524-2 for complete operating theatre safety.

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Telemetry & NIST Ports

Features MS58 chrome-plated brass valves, ISO 18082 physical NIST emergency ports, and 24/7 RS485 Modbus alarm panel telemetry.

Operating Sequence

How Second Stage Zone Control Units Work

Continuous line pressure regulation, 24/7 digital alarm surveillance, secondary NIST cylinder feeding during pipeline drops, and rapid emergency leak shut-off.

Stabilized 4 Bar Pipeline Supply

Phase 1: Precision Pressure Regulation & 24/7 Monitoring

NORMAL OPERATION
2nd Stage Regulator
✔ ACTIVE (8 → 4 Bar)
MS58 Ball Valve
✔ OPEN (100% Flow)
Digital Alarm Panel
● 24/7 Surveillance
NIST Emergency Port
○ Standby (Ready)

During standard clinical operation, incoming 8–10 bar riser gas is continuously reduced and stabilized by the 2nd stage regulator down to calibrated 4 bar. The microprocessor alarm continuously tracks line pressure and displays real-time values on the 2×16 LCD.

Stage 01

Continuous Regulation

The integrated regulator stabilizes line pressure to 4 bar while the digital alarm module tracks pipeline values 24/7 with BMS telemetry.

Stage 02

NIST Emergency Feed

When pipeline pressure drops, the isolation valve is closed and backup gas cylinders connect to NIST ports to sustain surgery without interruption.

Stage 03

Complete Leak Isolation

If pipe leakage or fire occurs, a single 90° turn shuts off the valve completely, safely isolating the entire theatre zone from central mains.

Safety & International Standards

Standards & Compliance for 2nd Stage Control Units

Manufactured, cleaned, and tested in strict accordance with international medical gas pipeline safety directives and line pressure regulation standards.

Line Regulation

ISO 10524-2 Standard

Equipped with solid brass line regulators certified to ISO 10524-2, stabilizing varying 8–10 bar pipeline supply down to precise 4 bar terminal delivery.

Pipeline Systems

ISO 7396-1 Compliance

Full adherence to ISO 7396-1 pipeline directives, guaranteeing zone valve isolation integrity, emergency bypass flow rates, and zero internal leakage.

Clinical Directive

HTM 02-01 Guidelines

Complies with UK NHS HTM 02-01 engineering requirements for second-stage pressure control, dual redundant regulator failover, and dual alarm telemetry communication.

Oxygen Cleanliness

ISO 15001 Degreasing

All regulators, ball valves, and copper pipe stems undergo ultrasonic degreasing certified to ISO 15001 for high-pressure medical oxygen safety.

ISO 9001:2015 & ISO 13485 Quality Management Standards
100% Factory Acceptance Tested (FAT) & Leak Checked
Monoblock Brass & EN 13348 Copper Stems
Second Stage ZCU (2ND Series) Configurator ISO 10524-2 • ISO 7396-1 • HTM 02-01

Interactive Second Stage Zone Control Unit Builder

Configure medical gas services, heavy-duty metal enclosure, mounting method, and single or double line pressure regulators to generate exact catalog order codes and engineering specifications.

1 Select Pipeline Gas Services (1 to 6 Gases)
Oxygen (O₂)Medical
4-5 bar • Regulated
Medical Air (MA4)Breathing
4 bar • Regulated
Vacuum (VAC)Suction
-0.6 bar • Direct Flow
Nitrous Oxide (N₂O)Anaesthetic
4 bar • Regulated
Surgical Air (SA7)Tools
7-8 bar • Dedicated Line
Nitrogen (N₂)Tools
7-8 bar • High Pressure
Carbon Dioxide (CO₂)Insufflation
4 bar • Regulated
2 Enclosure Material, Mounting & Regulators

Second Stage Zone Control Unit (3 Gases)

MAS.2ND.EP.O2-MA4-VAC.RC.03.SN
Gas Services
3 Gases
Dimensions (D×W×H)
70 × 400 × 500 mm
Enclosure
DKP Steel (RAL 9010)
Mounting
Recessed
Regulators
Single (SN)
Valves & NIST
MS58 + NIST

Engineered with precision line pressure regulators for 4 bar gases, quarter-turn MS58 ball valves, ISO 18082 NIST emergency bypass ports, break-door front access, and 2×16 LCD microprocessor digital surveillance.






Second Stage Zone Control Units FAQs
Essential engineering, regulation, and installation answers regarding Medicabay 2ND Series Second Stage Zone Control Units.



What is the primary role of Second Stage Zone Control Units?
Medicabay Second Stage Zone Control Units reduce and stabilize fluctuating 8–10 bar riser pipeline pressure down to calibrated 4 bar at surgical suite entrances, while providing quarter-turn zone isolation, 24/7 digital alarm tracking, and NIST emergency bypass feeding.





Why choose Double Redundant Regulators (DN) over Single Regulators (SN)?
Inside Second Stage Zone Control Units, double redundant regulators (DN) feature two parallel regulator lines with bypass valves. If one regulator requires calibration, technicians switch to the secondary line without shutting down active surgery.





Are Second Stage regulators needed for Surgical Air 7 bar or Vacuum lines?
No. Within Second Stage Zone Control Units, Surgical Air (SA7) is delivered at full 7–8 bar tool drive pressure, and Medical Vacuum operates under negative suction (-0.6 bar). Regulators are exclusively engineered for 4 bar breathing gases (O₂, MA4, N₂O, CO₂).





What enclosure materials are available for Second Stage Zone Control Units?
Due to regulator depth and valve weight, Second Stage Zone Control Units are exclusively manufactured in electrostatic powder-coated DKP steel (RAL 9010) or surgical-grade AISI 304 stainless steel. Glass front covers are not used.





How do Second Stage Zone Control Units operate during pipeline drops?
When pipeline pressure drops, staff close the ball valve and connect emergency medical cylinders directly to the Second Stage Zone Control Units gas-specific ISO 18082 NIST connector, sustaining operating suites immediately.




Complete the hospital gas pipeline network
Interconnected medical gas source plants, local emergency cabinets, and zone isolation units from one engineering manufacturer.


Area Valve Service Units (AVSU / ZCU)
Standard hospital zone isolation valve units with keyless emergency break-doors and ISO 18082 NIST bypass ports.


Emergency Medical Cabinets (EGY Series)
Autonomous surgical emergency gas supply cabinets providing failover cylinder feeding directly to local zone lines.


Master Alarm & Medical Gas Panels
Central hospital alarm annunciators with digital LCD readouts, Modbus RS485 telemetry, and BMS network outputs.


Automatic Cylinder Manifold (ACM Series)
Central hospital medical gas supply stations with automated electronic failover for uninterrupted riser feeding.


Medical Vacuum Plant (MVP Series)
Central surgical vacuum plants with multi-stage rotary vane pumps, duplex bacterial filtration, and ISO compliance.


Medical Air Plant (MAP Series)
Oil-free medical compressor plants supplying purified 4 bar breathing air and 7 bar surgical tool drive lines.






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