Enolgas Valvole a Sfera Acciaio Valvole a Sfera Acciaio

TOPAZ

TOPAZ - top-of-the-range universal valve for strength

, versatility, very high quality and resistance

The TOPAZ series is undoubtedly the spearhead of Enolgas Bonomi S.p.A. industrial valves. It is about a series of double flange (split-body) valves typically used in industrial and plant engineering applications, in different sectors such as: chemical, food, oil sector etc.
The durability and versatility makes it a universal product, suitable for those customers who want to focus on products of the highest quality and resistance. The gauge and the pressure class is regulated by the DIN standard and allows a perfect fit interchangeability with products from other manufacturers. 
The production is available in stainless steel (AISI316) and in carbon steel (LF2). The TOPAZ series is characterised by the lateral seal in PTFE (on request in other special materials); upper seal in PTFE and with O-ring; antistatic device; anti-burst pin; threaded holes; body from bar. 
The particular coupling between the PTFE gasket and the O-ring at the level of the valve pin, makes the same very soft in its opening and closing manoeuvres, as well as ensuring a high seal even in more severe application conditions.

All valves are tested and verified before sale and are guaranteed 2 years.

Material specification

 

Enolgas Topaz caratteristiche

 

   

COMPONENTS

Stanless steel
AISI 316

Carbon steel
1 BODY AISI 316   D 1.4401 LF2
2 BALL AISI 316   D 1.4408 AISI 304   D 1.4308
3 STEM AISI 316   D 1.4401 AISI 304   D 1.4301
4 O-RING FLUOROELASTOMER FLUOROELASTOMER
5 PACKING WASHERS AISI 304   D 1.4301 AISI 304   D 1.4301
6 SPRING WASHERS AISI 301   D 1.4310 50 CRV4
7 OPERATION STOP AISI 304   D 1.4301 Carbon steel 8.8
8 LOCKING NUT AISI 304   D 1.4301 A 105
9 LEVER HANDLE AISI 304   D 1.4301 A 105
10 STEM RETAINING NUT AISI 304   D 1.4301 A 105
11 STEM PACKING PTFE PTFE
12 THRUST WASHER PTFE PTFE
13 BALL SEATS PTFE PTFE
14 BODY FLANGE AISI 316   D 1.4401 LF2
15 STATIC GASKET PTFE PTFE
16 LOCKING NUT AISI 304   D 1.4301 A 105
17 STUD BOLT A 193 B8 A 193 B7

Characteristics

CHARACTERISTICS

Split-body ball valve heavy series from bar in stainless steel (AISI 316) and carbon steel LF2.
Size range from DN15 to DN200.
ISO 5211 mounting holes for actuators.
Stem with antistatic device from DN25.
Fire safe according to BS 6755 – API 6FA – API 607

END CONNECTIONS Flanges to UNI EN 1092-1 and DIN2501
Face to face to DIN3202
WORKING PRESSURE PN16/40 from DN15 to DN80
PN16 in size DN65 e from DN100 (PN40 on request)
TEMPERATURE LIMITS From -20° C to +180° C
SPECIAL EXECUTIONS Special gaskets:
  • PTFE + CARBO-GRAPHITE: to 210° C
  • PTFE + metallic core
  • PEEK for high temperature: up to 250° C
  • Cavity filler in PTFE

Stem extensions (50mm and 100mm)
Available on request AISI 304 version
Manual gear-box
Stem with antistatic device on request for DN15 and DN20
On request certificate EN 10497 – API 607 6th ED. 2010
ATEX execution on request
Nace MR 0.175 on request

Enolgas Topaz caratteristiche

Breaking Torque in Nm
Values in Nm change depending on the application and material of the seats. Always consider a suitable safety factor.

Enolgas Topaz caratteristiche

Pressure/temperature diagram

 

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