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Bellow Sealed Valves

Features of high quality Bellows Sealed Valves

BVALVE Bellows Sealed Globe Valves have flanges acc. to EN 1092-2, face to face as per EN 558-1 and ACME stem screw thread and grounded shaft. Some of Bvalve’s premium features are multiply layer bellows with long service life made of stainless steel, minimum life cycle of bellows as per MSS SP-117, metal back seat, safety stuffing box packing made of pure graphite, graphite + stainless steel gasket housed in a tongue and grooved flange, seat ring hard faced, conical disc and 360º rotating plug made of stainless steel + HARD FACED.

 

BV25061 | PN16 EN 1092-2
Cast Iron EN-JL 1040

Temperature min. -10ºC
Temperature max. +300ºC

   Testing pressure in bar

Hydro Body 24
Seat 18
Air Seat 07

Why BVALVE Bellows sealed valves are the best in the market?

BVALVE launches its own bellow sealed valves, having improved all elements design, and therefore making this valve the best choice in the market.

1 Free Rotating Plug. 360º free rotation disc, allowing the cleaning of impurities that may carry the fluid. Besides, closure surface is different in every cycle and at the same time, it does not transmit the vibrations to the valve stem.

2 Conical Plug. Lower contact surface between plug and seat enhances a tighter clousure.

3 Multi Layer Bellows. Double, triple and quadruple bellows wall depending on the size of the valve. It is welded to the stem and not to the disc, preventing the transmission of vibrations and extending the life of the bellows.

4 Non Ejectable Stem. Non ejectable stems: Stem includes mechanical stop which at the same time perform the function of locking metal to metal in the opened positions and hence prevent stems from being ejected due to process pressures. Meanwhile, mechanical stop adds robustness when valves are opened. Furthermore, our valves are equipped with pure graphite safety packings.

5 TA-LUFT Packing

6 Robust and Ergonomic Hand Wheel

7 ACME Thick Thread stem

8 Stop screw, stroke limiter and lubrificator. Anti-friction bearings that eases the valve opening and closing.

9 With robust yoke design and opening indicator.

10 Flange faces with thin machining acc. EN 1092, high quality cast iron and nodular cast iron, EN 10204 3.1 certificate available.

Download Data Sheet PDF

BV25064 | PN16 EN 1092-2
Nodular Cast Iron EN-GJS-400-18-LT

Temperature min. -10ºC
Temperature max. +350ºC

   Testing pressure in bar

Hydro Body 24
Seat 18
Air Seat 07

Why BVALVE Bellows sealed valves are the best in the market?

BVALVE launches its own bellow sealed valves, having improved all elements design, and therefore making this valve the best choice in the market.

1 Free Rotating Plug. 360º free rotation disc, allowing the cleaning of impurities that may carry the fluid. Besides, closure surface is different in every cycle and at the same time, it does not transmit the vibrations to the valve stem.

2 Conical Plug. Lower contact surface between plug and seat enhances a tighter clousure.

3 Multi Layer Bellows. Double, triple and quadruple bellows wall depending on the size of the valve. It is welded to the stem and not to the disc, preventing the transmission of vibrations and extending the life of the bellows.

4 Non Ejectable Stem. Non ejectable stems: Stem includes mechanical stop which at the same time perform the function of locking metal to metal in the opened positions and hence prevent stems from being ejected due to process pressures. Meanwhile, mechanical stop adds robustness when valves are opened. Furthermore, our valves are equipped with pure graphite safety packings.

5 TA-LUFT Packing

6 Robust and Ergonomic Hand Wheel

7 ACME Thick Thread stem

8 Stop screw, stroke limiter and lubrificator. Anti-friction bearings that eases the valve opening and closing.

9 With robust yoke design and opening indicator.

10 Flange faces with thin machining acc. EN 1092, high quality cast iron and nodular cast iron, EN 10204 3.1 certificate available.

Download Data Sheet PDF

BV25063 | PN25 EN 1092-2
Nodular Cast Iron EN-GJS-400-18-LT

Temperature min. -10ºC
Temperature max. +350ºC

   Testing pressure in bar

Hydro Body 37.5
Seat 27.5
Air Seat 07

Why BVALVE Bellows sealed valves are the best in the market?

BVALVE launches its own bellow sealed valves, having improved all elements design, and therefore making this valve the best choice in the market.

1 Free Rotating Plug. 360º free rotation disc, allowing the cleaning of impurities that may carry the fluid. Besides, closure surface is different in every cycle and at the same time, it does not transmit the vibrations to the valve stem.

2 Conical Plug. Lower contact surface between plug and seat enhances a tighter clousure.

3 Multi Layer Bellows. Double, triple and quadruple bellows wall depending on the size of the valve. It is welded to the stem and not to the disc, preventing the transmission of vibrations and extending the life of the bellows.

4 Non Ejectable Stem. Non ejectable stems: Stem includes mechanical stop which at the same time perform the function of locking metal to metal in the opened positions and hence prevent stems from being ejected due to process pressures. Meanwhile, mechanical stop adds robustness when valves are opened. Furthermore, our valves are equipped with pure graphite safety packings.

5 TA-LUFT Packing

6 Robust and Ergonomic Hand Wheel

7 ACME Thick Thread stem

8 Stop screw, stroke limiter and lubrificator. Anti-friction bearings that eases the valve opening and closing.

9 With robust yoke design and opening indicator.

10 Flange faces with thin machining acc. EN 1092, high quality cast iron and nodular cast iron, EN 10204 3.1 certificate available.

Download Data Sheet PDF

BV25065 | PN40 EN 1092-1
Carbon steel WCB (1.0619)

Temperature min. -10ºC
Temperature max. +400ºC

Hydro Body 60
Seat 44
Air Seat 07

Six reasons why our valve is better - BV25065

Straight type bellows sealed globe valves for demanding applications can be supplied in carbon steel 1.0619 / WCB and stainless steel 1.4408 / CF8M, both with flanged or buttweld ends.

Application (Carbon steel):
Powerstations, thermal oil processes, gas industry, processing technology, vapour facilities, recycling plants, vacuum installations, etc.

Medium (Carbon steel):
Medium and high pressure steam, superheated steam, gases, thermal oil, overheated water and gases, etc.
Application (Stainless steel):
Recycling plants, chemical industry, process water installations, process with aggressive media

Medium (Stainless steel):
Process water, aggressive media, corrossive and toxic fluids, ethylen dioxide, H2SO4, etc.
     

1. Completely welded multiple layer stainless steel bellows are secured against torque and designed to last for 30,000 operations. These provide higher safety and avoid leakage in case of broken packing.

2. Standard 360º free rotation and conical plug provides a tighter closure while maintaining seat clean from shards. Both seat and plug are made out of hardened chromium steel 1.4021 or armored with stellite.

3. TA-LUFT certified full size safety gland packing made of pure graphite together with our bellows, provide a fully reliable 0 leakage unit. Can also be supplied in PTFE if requested for chemical applications.

4. Stainless steel cam profiled bonnet gasket coated with pure graphite, mounted in tongue and grooved bonnet flanges reinforces operating safety in case of leakage. Can also be supplied in PTFE if requested for chemical applications.

5. Metal back seat has two features: Mechanical limitation for open position while guaranteeing a zero leackage in case of broken bellows.

6. Oversized wheel for easy handling .Position Indicator allows user to know in which opening / closing stage is the valve without having to operate it.

Download Data Sheet PDF

BV25066 | PN16 EN 1092-2
Stainless Steel CF8M (1.4408)

Temperature min. -60ºC
Temperature max. +400ºC

Hydro Body 60
Seat 44
Air Seat 07

Six reasons why our valve is better - BV25065

Straight type bellows sealed globe valves for demanding applications can be supplied in carbon steel 1.0619 / WCB and stainless steel 1.4408 / CF8M, both with flanged or buttweld ends.

Application (Carbon steel):
Powerstations, thermal oil processes, gas industry, processing technology, vapour facilities, recycling plants, vacuum installations, etc.

Medium (Carbon steel):
Medium and high pressure steam, superheated steam, gases, thermal oil, overheated water and gases, etc.
Application (Stainless steel):
Recycling plants, chemical industry, process water installations, process with aggressive media

Medium (Stainless steel):
Process water, aggressive media, corrossive and toxic fluids, ethylen dioxide, H2SO4, etc.
     

1. Completely welded multiple layer stainless steel bellows are secured against torque and designed to last for 30,000 operations. These provide higher safety and avoid leakage in case of broken packing.

2. Standard 360º free rotation and conical plug provides a tighter closure while maintaining seat clean from shards. Both seat and plug are made out of hardened chromium steel 1.4021 or armored with stellite.

3. TA-LUFT certified full size safety gland packing made of pure graphite together with our bellows, provide a fully reliable 0 leakage unit. Can also be supplied in PTFE if requested for chemical applications.

4. Stainless steel cam profiled bonnet gasket coated with pure graphite, mounted in tongue and grooved bonnet flanges reinforces operating safety in case of leakage. Can also be supplied in PTFE if requested for chemical applications.

5. Metal back seat has two features: Mechanical limitation for open position while guaranteeing a zero leackage in case of broken bellows.

6. Oversized wheel for easy handling .Position Indicator allows user to know in which opening / closing stage is the valve without having to operate it.

Download Data Sheet PDF

BV25065HP | PN40 EN 1092-1
Carbon steel WCB (1.0619)

Temperature min. -10ºC
Temperature max. +400ºC

Hydro Body 60
Seat 44
Air Seat 07

Six reasons why our valve is better - BV25065 HP

Straight type bellows sealed globe valves for demanding applications can be supplied in carbon steel 1.0619 / WCB and stainless steel 1.4408 / CF8M, both with flanged or buttweld ends.

Application (Carbon steel):
Powerstations, thermal oil processes, gas industry, processing technology, vapour facilities, recycling plants, vacuum installations, etc.

Medium (Carbon steel):
Medium and high pressure steam, superheated steam, gases, thermal oil, overheated water and gases, etc.
Application (Stainless steel):
Recycling plants, chemical industry, process water installations, process with aggressive media

Medium (Stainless steel):
Process water, aggressive media, corrossive and toxic fluids, ethylen dioxide, H2SO4, etc.
1. Completely welded multiple layer stainless steel bellows are secured against torque and designed to last for 30,000 operations. These provide higher safety and avoid leakage in case of broken packing.

2. Standard 360º free rotation and conical plug provides a tighter closure while maintaining seat clean from shards. Both seat and plug are made out of hardened chromium steel 1.4021 or armored with stellite.

3. TA-LUFT certified full size safety gland packing made of pure graphite together with our bellows, provide a fully reliable 0 leakage unit. Can also be supplied in PTFE if requested for chemical applications..

4. Stainless steel cam profiled bonnet gasket coated with pure graphite, mounted in tongue and grooved bonnet flanges reinforces operating safety in case of leakage. Can also be supplied in PTFE if requested for chemical applications.

5. Metal back seat has two features: Mechanical limitation for open position while guaranteeing a zero leackage in case of broken bellows.

6. Position Indicator allows user to know in which opening / closing stage is the valve without having to operate it.

Three more reasons - High Preformance design (HP)

     
7. Two piece stem stops torque from being transmitted to bellows and plug. Upper stem is easily changeable to adapt different actuators. Both temperature and dilatation in stem are reduced, diminishing the valve´s probability of blocking.

8. Extended Bellows and Bonnet enhances safety for the operator since temperature effect is easily dissipated while increasing bellows life span.

9. Towers included in standard design allow these valves to be actuated, therefore becoming a control valve. This may also perform regulation when including throttling plug.

Download Data Sheet PDF

BV25066HP | PN40 EN 1092-1
Stainless Steel CF8M (1.4408)

Temperature min. -60ºC
Temperature max. +400ºC

Hydro Body 60
Seat 44
Air Seat 07

Six reasons why our valve is better - BV25065 HP

Straight type bellows sealed globe valves for demanding applications can be supplied in carbon steel 1.0619 / WCB and stainless steel 1.4408 / CF8M, both with flanged or buttweld ends.

Application (Carbon steel):
Powerstations, thermal oil processes, gas industry, processing technology, vapour facilities, recycling plants, vacuum installations, etc.

Medium (Carbon steel):
Medium and high pressure steam, superheated steam, gases, thermal oil, overheated water and gases, etc.
Application (Stainless steel):
Recycling plants, chemical industry, process water installations, process with aggressive media

Medium (Stainless steel):
Process water, aggressive media, corrossive and toxic fluids, ethylen dioxide, H2SO4, etc.
1. Completely welded multiple layer stainless steel bellows are secured against torque and designed to last for 30,000 operations. These provide higher safety and avoid leakage in case of broken packing.

2. Standard 360º free rotation and conical plug provides a tighter closure while maintaining seat clean from shards. Both seat and plug are made out of hardened chromium steel 1.4021 or armored with stellite.

3. TA-LUFT certified full size safety gland packing made of pure graphite together with our bellows, provide a fully reliable 0 leakage unit. Can also be supplied in PTFE if requested for chemical applications..

4. Stainless steel cam profiled bonnet gasket coated with pure graphite, mounted in tongue and grooved bonnet flanges reinforces operating safety in case of leakage. Can also be supplied in PTFE if requested for chemical applications.

5. Metal back seat has two features: Mechanical limitation for open position while guaranteeing a zero leackage in case of broken bellows.

6. Position Indicator allows user to know in which opening / closing stage is the valve without having to operate it.

Three more reasons - High Preformance design (HP)

     
7. Two piece stem stops torque from being transmitted to bellows and plug. Upper stem is easily changeable to adapt different actuators. Both temperature and dilatation in stem are reduced, diminishing the valve´s probability of blocking.

8. Extended Bellows and Bonnet enhances safety for the operator since temperature effect is easily dissipated while increasing bellows life span.

9. Towers included in standard design allow these valves to be actuated, therefore becoming a control valve. This may also perform regulation when including throttling plug.

Download Data Sheet PDF

 

 

MANUFACTURING RANGE

Bellows sealed valves, pressure reducing valves, traps and strainers.

CHEMICAL APPLICATION

Special bellow sealed valve PN40 high performance for chemical applications.


REFERENCES

List of references of BVALVE valves in the most relevant industry groups and worldwide projects.

ANSI CATALOG

BVALVE ANSI bellows sealed globe and bellow sealed gate valves.