The Spirax Sarco AVM7 is a serviceable clean steam air vent. The body and thermostatic element are manufactured from 316L stainless steel and fitted with an FKM O-ring seal certified to meet FDA and USP Class VI requirements. Designed in accordance with ASME BPE, it has a maximum operating pressure of 7 bar g. Threaded, butt-weld, and clamp connections are available. The vent is specifically designed to remove air and other non-condensable gases from clean steam distribution systems during startup and operation.
Spirax Sarco AVM7 Air Vent Product Image, Three-Quarter View
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AVM7 Clean Steam Air Vent | Spirax Sarco
Serviceable clean steam air vent for removing air during system startup and operation, with clamp connections available.
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Model confirmation
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After-sales support
After-sales communication support is provided according to the order agreement.
Specifications
- Maximum Allowable Pressure
- 7 bar g at 170°C
- Maximum Allowable Temperature
- 170°C at 7 bar g
- Minimum Allowable Temperature
- -10°C
- Maximum Operating Pressure (Saturated Steam)
- 7 bar g
- Maximum Operating Temperature
- 170°C
- Minimum Operating Temperature
- 0°C
- Cold Hydrostatic Test Pressure
- 10.5 bar g
- Body Material
- 316L stainless steel (AISI 316L 1.4404)
- Seal Material
- FKM
- Thermostatic Element Material
- 316L stainless steel (AISI 316L 1.4404)
- Internal Surface Finish
- Ra 1.6-3.2
- Design Standards
- ASME BPE, PED 97/23/EC
- O-Ring Certifications
- FDA CFR Title 21 177.2600, USP Class VI
- Connection Types
- BSP/NPT threaded connections, butt-weld tube ends, clamp connections
- Connection Sizes
- 1/4", 1/2", 3/4", 1", DN8, DN10, DN15
Application scenarios
Air Venting for Clean Steam Distribution Networks
Designed for installation at venting points in clean steam distribution networks to remove air and other non-condensable gases during system startup and operation. The AVM7 is specifically designed for clean steam systems and is suitable for saturated steam service at up to 7 bar g and 170°C.
Selection points
316L Stainless Steel Construction and Internal Surface Finish
The body and thermostatic element are both made of 316L stainless steel, with an internal surface finish of Ra 1.6-3.2.
Design Standards and O-Ring Compliance Certifications
The product is designed in accordance with ASME BPE and PED 97/23/EC. The FKM O-ring complies with FDA CFR Title 21 177.2600 and USP Class VI.
Multiple Connection Types and Sizes
Available with BSP or NPT threaded connections, butt-weld tube ends, and clamp connections. Connection sizes include 1/4", 1/2", 3/4", 1", DN8, DN10, and DN15.
Serviceable Design
The AVM7 is a serviceable clean steam air vent suitable for clean steam systems requiring routine maintenance.
FAQ
What is the function of the AVM7 clean steam system air vent?
The AVM7 removes air and other non-condensable gases from clean steam systems and features a serviceable design.
What are the installation requirements for the AVM7?
The AVM7 must be installed in vertical pipework with upward flow to ensure self-draining. The thermostatic element must not be exposed to superheated conditions. Isolation valves must be installed upstream and downstream to facilitate maintenance and replacement.
What connection types and sizes are available for the AVM7?
The AVM7 is available with 1/4", 1/2", 3/4", and 1" BSP or NPT threaded connections, as well as butt-weld tube ends, clamp connections, and various metric tube-end connections. The exact configuration must be confirmed according to the specific model and application conditions.
What are the pressure and temperature limits of the AVM7?
The body design rating is PN7. The maximum allowable pressure is 7 bar g at 170°C, the maximum allowable temperature is 170°C at 7 bar g, the minimum allowable temperature is -10°C, and the maximum saturated steam pressure is 7 bar g.
What spare parts are available for the AVM7?
Available spare parts include the thermostatic element and O-ring. When ordering spare parts, specify the size, model, and connection type.