Spirax Sarco AVC32 Carbon Steel Air Venting Valve for Steam Systems

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Spirax Sarco Spirax Sarco AVC32 Repairable Pressure Balanced Thermostatic Air Venting Valve in carbon steel with built-in flat plate strainer and straight line connection for steam systems.All pressurized components are supplied by suppliers with TÜV approval and are manufactured in accordance with AD-Merkblatt WO/TRD100.

Standard: This product complies with the European Pressure Equipment Directive 97/23/EC.Certificate: This product can be supplied with a certificate for the material EN 10204 3.1.B.Note: If a certificate is required, please specify it when ordering.

Sizes and pipe connections

½", ¾" and 1" Screwed BSP or NPT.
½", ¾" and 1" socket welds BS 3799.
½", ¾" and 1" butt welds EN 12 627.
DN15, 20 and 25 Flanged EN 1092 PN40.
ANSI B 16.5 Class 150 and 300, JIS/KS 10K and JIS/KS 20K.

Operating range and limitations (ISO6552)

Valve body design conditions PN40
PMA - Maximum Allowable Pressure 50bar g@50 °C
TMA- Maximum Allowable Temperature 400°C@35 bar g
Minimum permissible temperature -60 °C
PMO- Maximum Saturated Steam Pressure 32 bar g
TMO- Maximum Operating Temperature 287°C@32 bar g
Minimum working temperature 0 °C
Design maximum cold hydraulic test pressure 75 bar g

Kv value

caliber DN15 - ½" DN20 - ¾" DN25 - 1"
Kv 0.8 0.8 0.8

Conversion formula: Cv(UK) = Kv x 0.963 Cv (US) = Kv x 1.156

material (that sth is made of)

Item Part material (that sth is made of)
1 bonnets DIN 17243 C22.8 (W/S 1.0460)/carbon steel ASTM A105N
2 fluid sac stainless steels
3 Seat Stainless steel BS 970 431 S29
5 filter Stainless steel AISI 304
7 Bonnet Gasket Stainless steel reinforced flake graphite
8 valve body Carbon steel DIN 17243 C22.8 (W/S 1.0460)/ASTM A105N
9 Bonnet bolts Stainless Steel (M10 x 30) A2-70
17 sprung stainless steels
18 partitions stainless steels

weights

caliber Threaded/Welded Weight Flange Weight
½" DN15 1.4kg 2.9kg
¾"DN20 1.4kg 3.5kg
1 "DN25 1.5kg 4.1kg

Installation Tips

The AVC32 needs to be installed with the bladder in a horizontal position and the valve cover on top.
The AVC32 needs to be installed in an area where air tends to accumulate, such as the steam main or the highest end of the equipment, and the vent should lead to a safe place.
For ease of maintenance, it is recommended that shut-off valves be installed upstream and downstream of the air venting valve. The air venting valve should not be adiabatic.

Handling instructions

This product is recyclable and does not create ecological problems if disposed of properly.

Ordering Instructions

Example: 1 - Spirax Sarco ½" AVC 32 evacuation air valve, BSP threaded connection.