Boscarol technology for pressure regulationEconomisers
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Economisers and reducers
Boscarol has developed two product lines to manage pressure differences and surpluses, creating solutions that allow on the one hand to make the plant more functional and efficient, and on the other hand to ensure greater safety and financial savings.
Sensitivity, precision, consistency
Boscarol economisers are a guarantee of safety and financial saving. They stop the risk of surplus elimination in case of overpressure and leakages in case of temperature increase, which are typical for plants without economisers.
Restoration of normal pressure values
Surplus recovery at its natural location
Losses go back into the use cycle
Plant safety and economy
Boscarol reducers convey fluids directly into the service, regulating the different inlet and outlet pressures. The working section of the diaphragm is fourteen times larger than that of the shutter: such a ratio allows to obtain a very sensitive, precise and constant overflow opening and to respect the pressure value established downstream.
Technical features
Bell-shaped body
Threaded / welded line or square couplings
Passage diameters of 6,5 - 15 and 25 mm
Tangs and fittings for welded funnel couplings
Economisers and reducers
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Nominal diameter (ND) |
6,5 | 15 | 25 | |
|---|---|---|---|---|
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Nominal pressure (NP) |
40 bar / 580 psi | |||
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Operating temperatures |
-196°C/-321°F ÷ +50°C/+122°F |
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| Couplings |
Threaded |
5/8” BSP male |
1” BSP male |
1”1⁄4 BSP male |
| Pocket welded |
Ø 12,1 mm |
Ø 17,2 |
Ø 27,6 mm |
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|
Maximum adjustment range |
1-25 bar |
1-35 bar |
1-20 bar |
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|
Flow coefficient cv 1) |
0,58 |
1,8 |
4,8 |
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Reference standards |
ASME/ANSI B16.34 - EN 12300, 738-2 - ISO 5208 |
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Certification |
Directive 94/9/UE (ATEX) |
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Materials |
Adjusting screw |
Stainless steel 303 |
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Housing |
Brass CW617N |
Brass CW617N or stainless steel 316 |
Bronze or stainless steel 316 |
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Adjustment |
CrSi steel - 52SiCrNi5-coated |
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Membrane |
Bronze EN1652 CW452K or stainless steel 316 |
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Seal |
PTFE |
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Flange |
- | - |
Brass CW617N or stainless stee |
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Shutter |
PTFE |
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Body |
Brass CW617N |
Brass CW617N or stainless steel 316 |
Brass CW617N or stainless steel 316 |
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|
Lower body cap |
- |
Stainless steel 304/316 |
Stainless steel 304/316 |
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1) USA gallons per minute of water at 60°F with a pressure difference of 1 psi
Cryogenic by-passes
They are small and housed in the tank tool block. Particularly suitable for applications on differential pressure measurements, they allow for the control of the fluid contained in the system.
- Available with 3 and 4 valves
- Possibility of a 40 diameter flange for connection to the control pressure gauge
- Line or square couplings
- Centre to centre distance of 35 mm (3, 4 valves) or 35 mm (inlet), 54 mm (outlet) if with 4 valves
- Conical needle shutter free to rotate with respect to the stem for greater resistance to wear due to rubbing during closing.
|
Nominal pressure (NP) |
40 bar / 580 psi |
|---|---|
| Operating temperature | -196°C/-321°F ÷ +50°C/+122°F |
| Couplings | Male/female threaded: 1/4 NPT, 1/4 BSP, UNF 1) |
| Certification | Direttiva 94/9/UE (ATEX) |
| Materials |
Body: Stainless steel. A479-grade 304 Stem: Stainless steel. A479-grade 316 Pin shutter: Stainless steel A479-grade 316 with stellite insert Seal: PTFE Handwheel: bleached brass |
1) Other types of threading on request
Three-piece joints
Support accessories for cryogenic applications they allow connecting various pipes to each other. They are composed of two spherical seal spigots and are interconnected by a threaded union. Effective seal is obtained from the convex-conical connection.
| Passage mm (inch) | 8 (1/4”) - 15 (1/2”) - 20 (3/4”) - 25 (1”) |
|---|---|
| Nominal pressure (NP) | 40 bar / 580 psi |
| Operating temperature | -196°C/-321°F ÷ +50°C/+122°F |
| Reference standards | ASME/ANSI: B16.34, B16.11, B16.25 |
| Certification | Directive 97/23/CE (PED) |
| Materials | Stainless stee |
