Butterfly Valves Serie 22/23. DN 32…500. PN 10/16

For Corrosive Applications in the chemical industry which require PTFE, High Temperature Applicationsup to 200°C (392°F) with PTFE, Conductive Applications where PTFE Electrostatic Discharge (ESD) protection is required, Abrasive Applications involving chemicals or temperatures where UHMWPE is the preferred material.

The Series 22/23 HPV line of butterfly valves sets the new standard of reliability and innovation. Extensive field research and engineering have developed this state-of-the-art design which provides excellent shut off protection (bubble-tight shut off) and high Cv values. The HPV is crafted in a variety of materials such as PTFE, Stainless Steel, UHMWPE and special alloys to fit a wide range of customer
requirements. As with all Bray’s products, precision manufacturing and exceptional quality remain the
keys to a proven record of long service life.

 

Specifications

Version: Series 7000 - Stainless Steel 1.4408
Series 8000 - Carbon Steel 1.0446
Diameter nominal-metric DN, mm: 15…200
Pressure nominal PN, Bar: 64 Bar for DN15…DN100
25 Bar for DN150…DN200
Body: 1.4408 (Series 7000) Stainless Steel
1.0446 (Series 8000) Carbon Steel
Disk: 1.4408 Stainless Steel
Seal: PTFE (-40...+210 C)
Connection: lug BSPT, NPT, BSPP;
welded;
flanged DIN, ANSI;
sanitary Tri-clamp;
nipple;
other upon request
Actuator: handle / gear operator / pneumatic actuator /electric actuator
Accesories: SS actuators / positioners / Solenoid valves

Datasheet

Bray S22 / S23

The Series 22/23 HPV line of butterfly valves sets the new standard of reliability and innovation. Extensive field research and engineering have developed this state-of-the-art design which provides excellent shut off protection (bubble-tight shut off) and high Cv values. The HPV is crafted in a variety of materials such as PTFE, Stainless Steel, UHMWPE and special alloys to fit a wide range of customerrequirements. As with all Bray’s products, precision manufacturing and exceptional quality remain thekeys to a proven record of long service life.

DISC (A) The HPV PTFE disc has 3 mm (1/8") minimum thickness of pure, virgin PTFE encapsulated over the following metals: 50mm-300mm valves, PTFE encapsulated over 316 stainless steel
350mm -600mm valves, PTFE encapsulated over 17-4 PH SS. A 316 stainless steel disc is also available in all valve sizes. The disc design allows for a higher flow area than other typical PTFE valves. All discs are fully certified (DIN 50049 3.1.B) and marked accordingly for traceability.

BODY (B) Bodies are two piece wafer or lug style and are epoxy coated. All bodies meet full ANSI Class 150 and DIN 3840 pressure ratings for hydrostatic requirements. Body materials are fully certified (DIN 50049 3.1.B) and marked accordingly for traceability.

NECK (C) An extended neck design in all valve sizes allows for 2" of piping insulation and provides easy access for mounting actuators.

UPPER STEM SEAL (D) The upper stem seal serves to keep any environmental contaminants from entering the stem bore. Material is Buna-N as the standard or FKM as an option.

TOP STEM BUSHING (E) A top stem bushing is provided to absorb actuator side thrusts and is acetal as standard or PTFE as an option. The stainless steel retaining ring at the top of the valve retains the bushing in position, even when the valve is installed upside down.

BEARINGS (F) Two PTFE impregnated steel bearings are provided for precision alignment of the upper and lower stem.

BODY BOLTS (G) are 316 Stainless Steel material.

BRAY’S UNIQUE STEM SEALING SYSTEM FEATURING THE SEAL CAPSULE DESIGN

PRIMARY SEAL (H) The primary seal is achieved by an interference fit between the extra wide disc hubs and specially contoured seat.

SEAL CAPSULE (I) (SECONDARY SEAL) One key feature of the Bray HPV is the patented Seal Capsule that forms the secondary stem seal. This capsule fully isolates the valve body and stem from
the line media. The Seal Capsule is made of a virgin PTFE enclosing the internal energizer. The capsule fits into grooves machined in the upper and lower disc hubs. When compressed between the disc and seat during assembly, the capsule becomes energized, exerting both upward and downward pressure on disc and seat surfaces. This sealing design is simple, reliable and proven, yet it requires much fewer components than other valves that utilize large metal springs to squeeze the packing against the shaft.

FLANGE LOCATING HOLES (J) Locating holes in the wafer version provide quick and precise alignment during valve installation, eliminating disc interference with adjacent pipe I.D.

BODY SEALS (K) (Bidirectional) Reinforced PTFE gaskets are placed between the body halves. These seals eliminate contamination from external environmental conditions and potential leak path from the line media.

BLOWOUT PROOF STEM (L) A shoulder has been machined into the upper stem. The upper stem is coupled to the valve disc by Bray’s unique double “D” connection. The stem and the disc are pressed together during assembly to become one part, thus the design is a positive stem-todisc drive connection. Both upper and lower stem materials are 17-4 PH Stainless Steel.

SEAT DESIGN (M) The unique Bray Series 22/23 HPV seat design reduces seating/unseating torque and, at the same time, reduces wear on the contacting parts. Utilizing state-of-the-art engineering,
optimal computer designed curvatures are machined into the inner seat area. The curvatures minimize contact forces between the disc and seat as the disc approaches, or opens from, the closed position. This unique seat geometry permits lower torques and reduces seat wear. To maintain the proper shape, the PTFE seats are fully machined after the initial moulding process. All seats are mill
certified (DIN 50049 3.1.B) and are marked accordingly for traceability.

SEAT ENERGIZER (N) A resilient seat energizer extends completely around the seat, including the disc hub. This provides uniform force sufficient for bubble-tight shut off. The standard energizer material is silicone, FKM is available as an option.

ACTUATOR MOUNTING FLANGE AND STEM CONNECTION (O) Designed to comply with ISO 5211 for direct mounting of Bray power actuators and manual operators.

VIRGIN PTFE SPECIFICATIONS
All Bray PTFE seats and encapsulated discs are molded from pure, virgin PTFE material to the following
specifications:

Specifications:

Item Minimum
Thickness 3 mm
Specific Gravity 2.16
Crystallinity 68%

PTFE’s inherent molecular bonding strength gives an extremely good chemical, high temperature and tear resistance. These properties combined with Bray’s stringent material specifications provide optimum protection against permeation of the line media. This protection is far superior to PFA or FEP materials offered by other manufacturers. PTFE also features a low coefficient of friction, thus
reducing valve operating torques. PTFE lined discs and seats are ideal for high pressure use in chemical, high purity water, food, pharmaceutical and other sanitary industries.


CONDUCTIVE PTFE
Bray Conductive PTFE seats and discs are available for installation in areas of the plant where  explosion protection is important. This material was designed to prevent harmful electrostatic discharge (ESD). The conductivity has been obtained by the controlled addition of no more than 1.2% carbon. For the ultimate in safety and reliability, Bray has combined ESD protection and the excellent
chemical resistance properties of PTFE. The conductive PTFE seat and the disc is 3 mm (1/8") minimum thickness, providing optimum protection against permeation of the line media.


VACUUM RESISTANT SEATS
Plant applications with vacuum and temperature fluctuations place unique demands on valve seats. When plant vacuum decreases and operating temperature increases, substantial stress is placed on typical valve seat material. This stress is increased during temperature fluctuations. The standard HPV PTFE seats have been designed for low and medium vacuum service. Special HPV PTFE seats are available for high vacuum service.

TEMPERATURE/PRESSURE DIAGRAM

 

 

UHMWPE
HPV seats and discs are available in UHMWPE, the ideal choice for highly abrasive chemical applications. The natural ability of the UHMWPE’s high molecular weight to repel solids prevents in-line particles from damaging the valve’s seat surfaces. The Bray UHMWPE seat offers the same machined curvatures and fully extending seat energizer as the PTFE seat. The UHMWPE seat and
disc feature exceptional chemical resistance and a 150 psi pressure rating. These properties and features combine to greatly extend the life of the valve, and make the HPV UHMWPE seat and disc the economical and high performance choice for abrasive chemical services.

PRESSURE RATING
For bi-directional bubble-tight shut off, disc in closed position: UHMWPE Moulded Disc with UHMWPE Seat Stainless Steel Disc with UHMWPE Seat 50mm-300mm 10 bar – 2"-12" 150 psi For larger valve sizes consult the Bray factory.


TEMPERATURE RATING
Maximum: 85°C (185°F)
Minimum: -18°C (-0°F)

 

 

INTERNATIONAL FLANGE COMPATIBILITY
Bray’s Series 22 valve is a wafer version with flange locating holes, and the Series 23 is the companion lug version for full rated dead-end service. A major design advantage of Bray valve product lines is international compatibility. These valves are compatible with most world flange standards. In addition the valves are designed to comply with ISO 5752 face-to-face and ISO 5211actuator mounting flanges. Therefore, one HPV valve design can be used in many different world markets. Bray’s complete range of valves, accessories and parts, all with worldwide compatibility offers the best in uniformity, economy and high performance in the industry today.

DIRECT MOUNTING
Due to a modular concept of design, all Bray handles, manual gear operators, pneumatic and electric actuators mount directly to Bray valves. No brackets or couplings are required.

POLYESTER COATING
As its standard product Bray offers Series 22/23 HPV valve bodies with a polyester coating, providing excellent corrosion and wear resistance to the valve’s body surface. The Bray polyester coating is a hard, gloss red finish. Chemical Resistance – resists a broad range of chemicals including: dilute aqueous acids and alkalies, salts, salt spray, petroleum solvents, alcohols, greases and oils. Offers outstanding resistance to humidity and water. Weatherability– outdoor proven resistant to ultra-violet radiation. Abrasion Resistance – excellent Impact Resistance –withstands impact without chipping or cracking.

FACTORY TESTING
Extensive testing has proven the Bray PTFE seat maintains a bubble-tight seal during temperature fluctuations throughout the pressure and temperature range of the valve. All Bray valves are tested to 110% of full pressure rating before shipment. Conductivity and other tests may be performed upon customer request.

DIMENSIONS           Series 22                               Series 23                                                  WEIGHTS

 

      DN

 

 

А

 

B

 

C

 

E

 

F

 

Mounting Flange Drig.

 

G

 

H

 

J

 

K

 

L

 

Valve size

 

S22

 

S23

ins

mm

BC

k?

No.
Holes

Hole
Dia.

DIN

ANSI

DIN

ANSI

UNS

kg

kg

2

50

99

43

51

140

90

F07

70

4

10

14

10

32

29

56

125

121

4?М16

4?5/8”-11

3.0

3.6

21?2

65

112

46

64

153

90

F07

70

4

10

14

10

32

45

63

145

140

4?М16

4?5/8”-11

3.4

4.5

3

80

127

46

77

159

90

F07

70

4

10

14

10

32

62

72

160

152

8?М16

4?5/8”-11

3.9

5.0

4

100

159

52

102

178

90

F07

70

4

10

16

11

32

84

91

180

190

8?М16

8?5/8”-11

6.1

8.0

5

125

188

56

127

191

90

F07

70

4

10

19

13

32

115

109

210

216

8?М16

8?3/4”-10

7.3

9.5

6

150

216

56

147

204

90

F07

70

4

10

19

13

32

136

122

240

241

8?М20

8?3/4”-10

9.3

13.0

8

200

270

60

197

242

150

F12

125

4

14

22

16

32

189

154

295

298

8?М20

8?3/4”-10

17.5

23.4

10

250

324

68

248

273

150

F12

125

4

14

30

22

50

240

189

350

362

12?М20

12?7/8”-9

28.2

34.5

12

300

378

78

299

312

150

F12

125

4

14

30

22

50

290

214

400

432

12?М20

12?7/8”-9

34.5

52.7

14

350

434

78

336

346

150

F12

125

4

14

35

10?10

50

330

252

460

216

12?М20

12?1/8”

56.5

66.5

16

400

488

102

387

375

150

F12

125

4

14

35

10?10

50

375

273

515

540

16?М24

16?1/8”

81.0

98.0

18

450

536

114

438

210

210

F16

165

4

21

50

12?10

63.5

423

305

585

578

16?М24

16?1-1/8”-7

108.0

123.0

20

500

590

127

489

438

210

F16

165

4

21

50

12?10

63.5

476

348

620

635

20?М24

20?1-1/8”-7

144.0

165.5

24

600

835

144

590

495

210

F16

165

4

21

63.5

18?10

101

576

451

725

749

20?М27

-

-

225.0

 

 

 

SEATING/UNSEATING TORQUES

Valve size

Full-Rated Pressure Valves

ins

mm

Nm

2

50

34

2 1/2

65

41

3

80

66

4

100

85

5

125

113

6

150

153

8

200

282

10

250

451

12

300

683

14

350

945

16

400

1299

18

450

1830

20

500

2279

24

600

3600

 

 

 

 

TO USE TORQUE CHART, NOTE THE FOLLOWING:

1) Valve Torque Rating – Bray has classified valve torque ratings according to 3 types: non-corrosivelubricating service, general service, and severe service. Torques listed are for general services. Consult Bray for torque information corresponding to specific application.2) These Seating/Unseating Torque values are to be used for all differential pressures up to 150 psi.3) Dynamic Torque values are not considered. See Technical Bulletin No.1002 for evaluation ofDynamic Torque values vs. Seating/Unseating Torque values.4) Do not apply a safety factor to above torque values when determining actuator output torquerequirement.5) For 3 way assemblies where one valve is opening and other is closing, multiply torque by 1.5 factor.

FLANGE REQUIREMENTSBray Series 22/23 HPV valves are designed for installation between ANSI Class 125/150 weld-neck orslip-on flanges, BS 10 Tables D and E, BS 4504 NP 10/16, DIN ND 10/16, AS 2129 and JIS10, either flat faced or raised faced. The Series 22/23 is compatible with most commonly used metal and plastic weldneck and slip-on flanges. Type C metal stub-end and certain widegrooved plastic flanges are notrecommended. Please consult factory for specific applications.

 

 

 

 

Cv VALUES–VALVE SIZING COEFFICIENT

DN

Disc Position (degrees)

ins

mm

20°

30°

40°

50°

60°

70°

80°

90°

2

50

6

14

23

38

52

72

98

125

2?

65

9

21

37

59

94

151

201

257

3

80

13

30

52

84

135

245

354

502

4

100

23

53

93

152

244

431

696

901

5

125

37

84

147

237

377

684

1111

1554

6

150

49

111

194

312

497

898

1488

2207

8

200

89

207

363

598

952

1635

2692

3731

10

250

141

330

576

947

1509

2571

4264

5856

12

300

207

479

835

1374

2220

3787

6334

8646

 

Cv is defined as the volume of water in U.S.G.P.M. that will flow through a given restriction or valve opening with a pressure drop of one
(1) p.s.i. at room temperature. Recommended control angles are between 25°–70° open.


VELOCITY LIMITS
For On/Off Services:
Fluids – 9m/s 
Gases – 54m/s 

Material selection

Item name

Material

Краткое обозначение

№ DIN

1. Body 

Ductile Iron
Stainless Steel
Carbon Steel

GGG40.3
G-X6CrNiMo18 10
GS-C25

0.7043
1.4408
1.0619

2. Disk

Stainless Steel
PTFE / Stainless Steel
PTFE проводимый*/ Stainless Steel
Hastelloy C276
Титан

G-X6CrNiMo18 10
PTFE/ G-X6CrNiMo18 10
PTFE conductive.*/ GX6CrNiMo18
10
-
-

1.4408
-/1.4408
-/1.4408
Alloy N
10276
3.7035

3. Seat

PTFE
PTFE, conductive*
UHMWPE

-
-
-

-
-
-

4. Upper Stem

Stainless Steel

X5CrNiCuNb17 4

1.4542

5. Lower Stem

Stainless Steel

X5CrNiCuNb17 4

1.4542

6. Bushing

Acetal
PTFE

-
-

-
-

7. Upper Stem Seal

Buna N
FKM

-
Viton

-
-

8. Seal Capsule (2)

PTFE/FKM

-

-

9. Bearing (2)

PTFE/St.

-

-

10. Seat Energizer (2)

Silicone,
FKM

-
-

-
-

11. Cap Screw (2)

Stainless Steel

A2-70

1.4301

12. Retainer

Stainless Steel

X35CrMo17

1.4122

13. Body Seal (2)

Reinforced PTFE / fiberglass

-

-

14. ID tag

Stainless Steel

X5CrNi18 10

1.4301

 

ACCESSORIES
A tapped port can be provided in the body neck below the stem seal to connect leak detectors or instrumentation. A Grounding Cable is offered to protect against static charge buildup. The cable mounts to the valve body.

CLASS 1000
CLEANROOM

Bray offers a Class 1000 Cleanroom facility for cleaning, assembly, testing and bagging of Bray valves to be used in high purity applications. By performing these procedures in a cleanroom, Bray delivers valves which can be placed directly into high purity systems without the need for any component cleaning in the field. The inherent characteristics of the HPV are further enhanced by processing in this facility. This on-site facility meets the specifications of Federal Standard 209E for Class 1000 airborne particulate cleanliness. Bray Series 22/23 valves which have been processed in the cleanroom are suitable for applications in semiconductor, chemical, pharmaceutical, food and other industries which have standards for high purity. Specific services include ultra pure water, deionized water, ultra pure chemicals, oxygen or any service where the control of contaminants is an important criteria.

Technical Information*