Stainless Steel Style Fire Extinguisher Valve Manufacturer in China
Stainless steel valve housing is produced through multi-stage CNC turning and drilling process. Inlet thread (M30x1.5 / M45x1.5 / 11/8-12UNF) is cut under controlled pitch tolerance to ensure cylinder neck sealing alignment.
Outlet channels (M10x1 / M14x1.5 / M16x1.5) are formed in single-pass machining to reduce internal flow turbulence during gas discharge. Gauge port (M10x1-12.5) is machined parallel to main axis to maintain pressure sensor stability during filling process.
Surface treatment of stainless steel body is applied to reduce oxidation under coastal humidity exposure and long-term storage conditions.
Outlet channels (M10x1 / M14x1.5 / M16x1.5) are formed in single-pass machining to reduce internal flow turbulence during gas discharge. Gauge port (M10x1-12.5) is machined parallel to main axis to maintain pressure sensor stability during filling process.
Surface treatment of stainless steel body is applied to reduce oxidation under coastal humidity exposure and long-term storage conditions.
Pressure Response Behavior And Internal Flow Routing
When actuator is pressed, valve stem moves vertically inside stainless steel chamber and compresses sealing seat. Gas is released from cylinder based on system pressure classification (2.2–2.4 MPa or 18–25 MPa).
Flow direction is controlled through internal channel structure connecting inlet thread to outlet interface. Dip tube (M10x1 / M16x1.5) transfers extinguishing agent from cylinder bottom directly into valve chamber without intermediate restriction point.
Spring reset system restores sealing position after discharge cycle, with return time controlled by compression force and stroke distance design.
Flow direction is controlled through internal channel structure connecting inlet thread to outlet interface. Dip tube (M10x1 / M16x1.5) transfers extinguishing agent from cylinder bottom directly into valve chamber without intermediate restriction point.
Spring reset system restores sealing position after discharge cycle, with return time controlled by compression force and stroke distance design.
| CODE NO. | INLET THREAD | OUTLET THREAD | GAUGE CONNECTION GAUGE | DIP TUBE THREAD | PRESSURE MPA | CHECKING VALVE |
|---|---|---|---|---|---|---|
| XH-FAC-01B-01 | M30x1.5 | M10X1 | M10x1-12.5 | M10x1 | 2.2-2.4 | NO |
| XH-FAC-01B-02 | M30x1.5 | M14x1.5 | M10x1-12.5 | M16x1.5 | 2.2-2.4 | NO |
| XH-FAC-01B-03 | M30x1.5 | M16x1.5 | M10x1-12.5 | M16x1.5 | 2.2-2.4 | NO |
| XH-FAC-01B-04 | M30x1.5 | M16x1.5 | M10x1-12.5 | M16x1.5 | 2.2-2.4 | NO |
| XH-FAC-01B-05 | M30x1.5 | M16x1.5 | M10x1-12.5 | M16x1.5 | 2.2-2.4 | YES |
| XH-FAC-01B-06 | M30x1.5 | M16x1.5 | M10x1-12.5 | M16x1.5 | 2.2-2.4 | NO |
| XH-FAC-01B-07 | M45x1.5 | M14x1.5 | M10x1-12.5 | M16x1.5 | 2.2-2.4 | NO |
| XH-FAC-01B-08 | 11/8-12UNF | 11/8-12UNF | 1/8-27NPT | M16x1.5 | 2.2-2.4 | NO |
| XH-FAC-01B-09 | 11/8-12UNF | 11/8-12UNF | 1/8-27NPT | M16x1.5 | 2.2-2.4 | YES |
Global Valve Selection Matrix (engineering Comparison)
Europe system
Inlet standard: M30x1.5 / G1 / G2
Pressure system: 2.2–2.4 MPa / 18–25 MPa
Application: building extinguisher + industrial CO2 system
Key structure: metric thread sealing + gauge M10 interface
Pressure system: 2.2–2.4 MPa / 18–25 MPa
Application: building extinguisher + industrial CO2 system
Key structure: metric thread sealing + gauge M10 interface
Russia system
Inlet standard: PZ27.8 / BSP / UNF interface
Pressure system: 2.2–2.4 MPa portable extinguishers
Application: transport + warehouse fire systems
Key structure: vibration resistance + simplified thread interface
Pressure system: 2.2–2.4 MPa portable extinguishers
Application: transport + warehouse fire systems
Key structure: vibration resistance + simplified thread interface
South America system
Inlet standard: M22 / M30 / BSP 1/4
Pressure system: 2.2–2.4 MPa portable units
Application: commercial buildings + small industrial fire systems
Key structure: mixed metric + BSP compatibility
Pressure system: 2.2–2.4 MPa portable units
Application: commercial buildings + small industrial fire systems
Key structure: mixed metric + BSP compatibility
Engineering Procurement & RFQ Validation Center
Valve selection is confirmed based on cylinder interface geometry, pressure classification, and stainless steel compatibility. RFQ is processed only after technical matching of inlet thread, outlet interface, and dip tube structure.
STEP 1: Cylinder specification review
STEP 2: Thread system identification
STEP 3: Pressure class matching (2.2–2.4 / 18–25 MPa)
STEP 4: Valve code confirmation
STEP 5: Production & RFQ release
RFQ Technical Input Checklist
• Cylinder volume (1L–12L / portable / industrial)
• Inlet thread type (M24 / M30 / M45 / PZ27.8 / G1 / G2 / UNF)
• Outlet interface (M10x1 / M14x1.5 / M16x1.5 / W21.8)
• Gauge connection requirement (M10x1-12.5 / 1/8-27NPT)
• Dip tube length or cylinder height reference
• Pressure system (2.2–2.4 MPa or 18–25 MPa)
• Target market standard (EU / Russia / South America)
• Inlet thread type (M24 / M30 / M45 / PZ27.8 / G1 / G2 / UNF)
• Outlet interface (M10x1 / M14x1.5 / M16x1.5 / W21.8)
• Gauge connection requirement (M10x1-12.5 / 1/8-27NPT)
• Dip tube length or cylinder height reference
• Pressure system (2.2–2.4 MPa or 18–25 MPa)
• Target market standard (EU / Russia / South America)
If inlet thread and cylinder neck mismatch occurs, valve cannot be assembled due to sealing misalignment. All RFQ requests are verified through thread compatibility before quotation release.
technical email response: 24h
sample confirmation: 3–7 days
mass production lead time: based on model code
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