TITAN FLOW CONTROL CATALOG - 0522

CV31-0218

TITAN ® FLOW CONTROL, Inc. 290 Corporate Drive E-mail: titan@titanfci.com Lumberton, NC 28358 Web: www.titanfci.com Tel: 910.735.0000 Fax: 910.738.3848

SWING CHECKVALVE •WAFERTYPE • SINGLE DISC MODEL: CV 31-DI (Ductile Iron Body) Buna-N Seat • Stainless Steel Disc

ASME Class 125/150

TITAN

BILL OF MATERIALS (1)

SideView ( shown with disc open )

8

No.

PART

CV 31-DI

1 2 3 4 5 6 7 8

Body

Ductile Iron ASTMA536

1

Seat

Buna-N O-Ring

ExplodedView

ØB

ØC

2

Disc (2)

Stainless Steel AISI 316 Carbon Steel ASTMA307B Series 300 Stainless Steel

3

Plug

5

7

Spring (2)

A D

Spacer

PTFE Commercial

Shaft

Stainless Steel AISI 316

Illustrations are representative of the CV 31-DI. Please request certified drawings when required.

Eye Bolt Carbon Steel ASTMA307B 1. Bill of Materials represents standard materials. Equivalent or better materials may be substituted at the manufacturer's discretion. All materials conform to ASTM specifications. 2. Denotes recommended spare parts.

4 6

DIMENSIONS AND PERFORMANCE DATA (1)

2 1 / 2

3

4

5

6

8

10

12

in

2

SIZE

mm

50

65

80

100

125

150

200 5.0 (4)

250 5.5 (4)

300

in

2.12 (4)

2.38 (4)

2.62 (4)

2.62 (4)

3.25 (4)

3.75 (4)

7.12 (4)

A DIMENSION FACETO FACE (2) Ø B DIMENSION OVERALL DIAMETER Ø C DIMENSION INLET DIAMETER D DIMENSION DISC MAXTRAVEL

mm

54

61

67

67

83

95

127

140

181

in

4.00 102 1.31

4.88 124 1.85 1.00 25.5 7.25 47

5.25 133 2.06 0.80 20.3 8.75 53

6.88 175 3.00

7.75 197 3.75 3.30 83.8 18.5 96

8.75 223 4.75 121 2.70 68.6

11.00

13.38

16.13 410 9.50 242 4.00 102 126 57.1 4153 ≤ .25

mm

280 6.44 164 3.00

340 7.63 194 4.62 117

in

mm

34

77

in

0.75

1.87 47.5

mm

19

76 50

lb

4.25

13.25

32

80

ASSEMBLED WEIGHT

kg C v psi

1.9

3.3

4

6

8.4

14.5 720

22.7 1384 ≤ .25

36.2 2298 ≤ .25

62

109

166

318

471

Flow Coefficient

Cracking Pressure (3)

≤ .25

≤ .25

≤ .25

≤ .25

≤ .25

≤ .25

1. Dimensions, weights, and flow coefficients are for reference only. When required, request certified drawings. 2. Face to face values have a tolerance of ±0.06 in (±2.0 mm) for sizes 10" and lower and a tolerance of ±0.12 in (±3.0 mm) for sizes 12" and larger. 3. Cracking pressure is for horizontal installations only. For vertical installations, please consult factory. 4. Face to face dimensions per API 594 Class 125.

REFERENCED STANDARDS & CODES

PRESSURE-TEMPERATURE RATINGS

CODE DESCRIPTION ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings ASME B16.5 Pipe Flanges & Flanged Fittings API 594

250 °F MaxTemp Buna-N Seat

This chart displays the pressure versus temperature ratings for the valve’s body material per ASME B16.42. Max temp limits have been added for seat and spring materials.

250

450 °F MaxTemp SS Spring

Ductile IronASTMA536 ASME Class 150

Wafer,Wafer-Lug, & Double Flanged Type CheckValve

200

API 598 MSS SP-6

Valve Inspection and Testing

Standard Finishes for Connecting-end Flanges

150

MSS SP-25 Standard Marking System for Valves MSS SP-55 Quality Standard for Valve Castings

Pressure (PSI)

100

PRESSURE/ TEMPERATURE RATING (1)

Pressure Class WOG (Non-shock)

Ductile Iron A536 Class 150

50

250 PSI @ 100 °F

SEATAND SPRINGTEMPERATURE RATINGS (1)

0

SEAT (O-Ring)

Temperature Range

-50

50

150

250

350

450

550

650

Temperature (°F)

Buna-N

-20 °F @ 250 °F

SPRING

MaximumTemperature

Ductile Iron Application Notes: Ductile Iron maintains the anti-corrosive properties of Cast Iron while achieving a yield strength comparable to Carbon Steel. Ductile Iron also offers higher pressure/ temperature ratings than Cast Iron. For example, Ductile Iron check valves (class 150 - sizes 2" ~ 24") are rated at 250 psi wog. By comparison, Cast Iron check valves (class 125 - sizes 2" ~ 12") are rated at 200 psi wog and (sizes 14" ~ 24") are only rated at 150 psi wog. Ductile Iron ASME Classes 150 has the same bolting pattern as Cast Iron ASME Class 125.

Series 300 Stainless Steel 450 °F 1. The listed pressure and temperature ratings for the valve's body, seat, and spring are theoretical and may vary during actual operating conditions.

2. Max and min temperatures are for reference only. Prolonged use at these temperatures is not recommended for optimal service life. As † Titan product changes occur, there may be short-term differences between actual product specifications and the information contained within our literature. † Titan FCI reserves the right to make design and specification changes to improve our products without prior notification. When required, request certified drawings. † TITAN is a registered trademark ofTitan Flow Control Incorporated.