Spirax Sarco - Catalogo Agosto 2017

Pipeline ancillaries

Air vents and air eliminators

7.12.3

ISO 9001

�

Steam

saturation

curve

�

Cert. No. LRQ 0963008

Description

The AVC32 is a carbon steel maintainable balanced pressure

thermostatic air vent for use on steam systems. It has an integral

flat strainer screen and straight connections. All pressure bearing

components are produced by TÜV approved suppliers in

accordance with AD-Merkblatt WO/TRD100.

Standards

This product fully complies with the requirements of the European

Pressure Equipment Directive 97/23/EC.

Certification

TI-P123-15

ST Issue 5

AVC32

Carbon Steel

Air Vent for Steam Systems

This product is available with certification to EN 10204 3.1.

Note: All certification/inspection requirements must be stated

at the time of order placement.

Sizes and pipe connections

1⁄2", 3⁄4" and 1" screwed BSP or NPT.

1⁄2", 3⁄4" and 1" socket weld ends to BS 3799.

1⁄2", 3⁄4" and 1" butt weld ends to EN 12 627

DN15, DN20 and DN25 standard flange to EN 1092 PN40,

ANSI B 16.5 Class 150 and 300, JIS/KS 10K and JIS/KS 20K.

Pressure/temperature limits (ISO 6552)

��

�

��

�

��

Pressure bar g

The product must not be used in this region.

The product should not be used in this region as damage

to the internals may occur.

A-B Screwed, socket weld, butt weld and flanged ANSI 300.

A-C Flanged EN 1092 PN40.

A-D Flanged JIS/KS 20K.

A-E Flanged ANSI 150.

F-G Flanged JIS/KS 10K.

Maximum body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

Minimum allowable temperature

Maximum operating pressure

PMO

for saturated steam service

TMO Maximum operating temperature

Minimum operating temperature

PN40

50 bar g @ 50°C

400°C @ 35 bar g

-60°C

32 bar g

287°C @ 32 bar g

Materials

No. Part

1 Cover

2 Capsule

3 Valve seat

5 Strainer screen

7 Cover gasket

8 Body / flanges

9 Cover bolts

17 Spring

18 Spacer plate

Material

Carbon steel

Stainless steel

Carbon steel

Stainless steel

DIN 17243 C22.8 (W/S 1.0460)

ASTM A105N

BS 970 431 S29

AISI 304

reinforced exfoliated graphite

DIN 17243 C22.8 (W/S 1.0460)

ASTM A105N

0°C

Note: For lower operating temperatures consult Spirax Sarco

Designed for a maximum cold hydraulic test pressure of 75 bar g

Kv values

Size

For conversion:

Cv (UK) = Kv x 0.963

Cv (US) =Kv x 1.156

(M10 x 30)

A2-70

DN15 - 1⁄2"

DN20 - 3⁄4"

DN25 - 1"

0.8

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice.