Control Products CV31-DI User Manual

CV31-0114

TITAN

f

WAFER TYPE

DUCTILE IRON

NEWLY

DESIGNED...

Face to face meets

API 594.

TITAN FLOW CONTROL, INC.

MODEL: CV 31-DI

Seat: Buna-N

Disc: Stainless Steel

SWING CHECK VALVE

ANSI CLASS 150

Body: Ductile Iron

f

FEATURES

F

SIZES: 2" ~ 12"

s

e c o n o m i c a l d e s i g n

l o w w e i g h t a n d s h o r t l a y i n g l e n g t h p r o d u c e s a v i n g s i n i nit i a l c o s t ,
s p a c e r e q u i r e m e n t s , a n d i n s t a l l at i o n w h e n c o m p a r e d t o f u l l - b o d y ,
s w i n g -t y p e c h e c k v a l v e s .

s

m i n i m a l h e a d l o s s

h e a d l o s s i s m i n i m i z e d b y p rov i ding a s h o r t , s t r a i g h t a n d v i r t u a l l y
u n o b s t r u c t e d f l o w p a t h . a d d i t i o n a l l y , t h e s p r i n g -l o a d e d d i s c i s
d e s i g n e d w i t h v e r y l o w c r a c k i n g p r e s s u r e w h i c h r e d u c e s t h e a m o u n t
o f e n e r g y r e q u i r e d t o o p e n t h e v a l v e .

s

q u i c k c l o s u r e t o r e d u c e w a t e r h a m m e r

s h u t - o f f i s a c h i e v e d v i a t h e f u l l y a u t o m a t i c , s p r i n g - a s s i s t ed d i s c t h a t

c l o s e s n e a r z e r o f l o w v e l o c i t y . t h e l i g h t w e i g h t , s i n g l e d i s c d e s i g n
c r e a t e s a p o s i t i v e s h u t o f f p r i o r t o f l o w r e v e r s a l w h i c h h e l p s t o k e e p
s u r g e s t o a m i n i m u m .

s

d u r a b l e , h i g h q u a l i t y d e s i g n

t h e c v 31' s d u c t i l e i r o n b o d y m a i n t a i n s t h e a n t i -c o r r o s i v e p r o p e r t i e s
o f c a s t i r o n w h i l e ac h i e v ing a y i e l d s t r e n g t h c o m p a r a b l e t o c a r b o n
s t e e l . d u c t i l e i r o n a l s o o f f e r s h i g h e r p r e s s u r e / t e m p e r a t u r e r a t i n g s
t h a n c a s t i r o n i n t h e s a m e p r e s s u r e c l a s s . t h e c v 31 a l s o f e a t u r e s
a n t i -c o r r o s i v e , s ta i n l e s s s t e e l t r i m (d i s c , s p r i n g , s h a f t ) a s s t a n d a r d .

s

r e s i l i e n t s o f t s e a t s

f i e l d r e p l a c e a b l e , r e s i l i e n t s o f t s e a t s ( b u n a - n o -r i n g ) c o u p l e d w i t h
pre c i s ion m a c h i n e d s e a l i n g s u r f a c e s h e l p t o e n s u r e a b u b b l e t i g h t s e a l
t h a t m e e t s o r e x c e e d s a p i 598 t e s t r e q u i r e m e n t s .

f

SINGLE DISC

TECHNICAL

T

pressure/ temperature rating

di - astm a536 - class 150

WOG (Non-shock): 250 PSI @ 100 °F

seat material

temperature range

BUNA-N: -20 ~ 250 °F

SPRING MATERIAL

MAXIMUM TEMPERATURE

Series 300 Stainless Steel: 450 °F

1. Ductile Iron valves offer higher pressure ratings
than Cast Iron. valves For example, Ductile Iron
valves (2" ~ 24") are rated at 250 psi wog. By
comparison, Cast Iron valves (2" ~ 12") are rated at
200 psi wog and (14" ~ 24") are only rated at 150
psi wog.

(1)

A

m a r k e t s : g e n e r a l i n d u s t r y , c h e m i c a l , p e t r o c h e m i c a l , p o w e r , a n d f o o d & b e v e r a g e

s e r v i c e

f l o w r a t e s h o u l d n o t e x c e e d 15 f t / s e c . n o t r e c o m m e n d e d f o r s t e a m o r r e c i p r o c a t i n g c o m p r e s s o r s e r v i c e .

b u n a - n p r o p e r t i e s : m o s t w i d e l y u s e d e l a s t o m e r . g o o d f o r m o s t p e t r o l e u m o i l s a n d f l u i d s , sil i con e

g r e a s e s a n d o i l s , a n d c o l d w a t e r . e x c e l l e n t c o m p r e s s i o n s e t , t e a r , a n d a b r a s i o n r e s i s ta n c e . p o o r
w e a t h e r r e s i s ta n c e a n d m o d e r a t e h e a t r es i sta n c e . n o t r e c o m m e n d e d f o r s e v e r e o z o n e - r e s i s ta n t
a p p l i c a t i o n s .

APPLICATIONS

Th e ab ove da ta r epr es en ts co mm on ma rke t a nd s er vi ce appl ica tion s. N o r epr esen tat ion or guar an tee, ex pr ess ed or i mpl ied , is giv en d ue to the num ero us
variations of concentrations, temperatures and flow conditions that may occur during actual service.

: i n t e n d e d f o r liq u id s e r v i c e t h a t i s s t e a d y , c l e a n (n o a b r a s i v e s o r s o l i d s ) a n d n o n -p u l s a t i n g .

TITAN FLOW CONTROL, INC.

YOUR PIPELINE TO THE FUTURE!

Tel: [phone]

290 Corporate Drive

s

Fax: [phone]

s

s

[e-mail]

PO Box 7408

s

s

Lumberton, NC 28358

www.titanfci.com

CV31-0114

TITAN

Te mperature (°F)

Pressure (PSI)

-50 50 150 250 350 450 550 650

0

50

100

150

200

250

This chart displays the pressure versus

temperature ratings for the valve’s bod

y

material per ASME/ANSI B16.42.

Max temp limits have been added for

seat and spring materials.

Ductile Iron ASTM A536
ANSI Class 150

450 °F MaxTemp
SS Spring

250 °F MaxTemp
Buna-N Seat

2

1

3

5

7

4

6

8

A D

ØB

ØC

TITAN FLOW CONTROL, Inc.

290 Corporate Drive E-mail: [e-mail]
Lumberton, NC 28358 Web: www.titanfci.com
Tel: [phone]
Fax: [phone]

SWING CHECK VALVE • WAFER TYPE • SINGLE DISC

MODEL: CV 31-DI (Ductile Iron Body)

Buna-N Seat • Stainless Steel Disc

ANSI

Class150

BILL OF MATERIALS

No. PART CV 31-DI

(1)

Side View

(shown with disc open)

1 Body Ductile Iron ASTM A536

2 Seat Buna-N O-Ring

3 Disc

(2)

Stainless Steel AISI 316

Exploded View

4 Plug Carbon Steel ASTM A307B

5 Spring

(2)

Series 300 Stainless Steel

6 Spacer PTFE Commercial

7 Shaft Stainless Steel AISI 316

8 Eye Bolt Carbon Steel ASTM A307B

1. Bill of Materials represents standard materials. Equivalent or better
materials may be substituted at the manufacturer's discretion.

All materials conform to ASTM specications.

2. Denotes recommended spare parts.

DIMENSIONS AND PERFORMANCE DATA

SIZE

A DIMENSION

FACE TO FACE

ØB DIMENSION

OVERALL DIAMETER

ØC DIMENSION

INLET DIAMETER

D DIMENSION

DISC MAX TRAVEL

(2)

ASSEMBLED
WEIGHT

Flow Coefcient

Cracking Pressure

1. Dimensions, weights, and ow coefcients are for reference only. When required, request certied 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.

(3)

in 2

mm 50 65 80 100 125 150 200 250 300

in 2.12 2.38 2.62 2.62 3.25 3.75 5 5.5 7.12

mm 53.85 60.45 66.55 66.55 82.55 95.25 127 139.7 180.85

in 4.00 4.875 5.25 6.875 7.75 8.75 11.00 13.375 16.125

mm 102 124 133 175 197 223 280 340 410

in 1.313 1.85 2.063 3.00 3.75 4.75 6.438 7.625 9.50

mm 34 47 53 77 96 121 164 194 242

in 0.75 1 0.8 1.87 3.3 2.7 3 4.62 4

mm 19 25.5 20.3 47.5 83.8 68.6 76 117 102

lb 4.0 5.0 7.0 11.0 16.0 16.0 32.0 44.0 60.0

kg 1.8 2.3 3.2 5.0 7.2 7.3 14.5 20.0 27.2

C

psi

v

62 109 166 318 471 720 1384 2298 4153

≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25

1

2

/2

3 4 5 6 8 10 12

(1)

Illustrations are

representative of the

CV 31-DI. Please

request certied

drawings when required.

PRESSURE-TEMPERATURE RATINGS

Ductile Iron Application Notes:

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 ANSI Classes 150 has
the same bolting pattern as Cast Iron ANSI Class 125.

Titan FCI makes every effort to ensure the information presented on our literature accurately reects exact product specications. However, as product changes occur, there may be short-term differences between actual product

specications and the information contained within our literature. Titan FCI reserves the right to make design and specication changes to improve our products without prior notication. When required, request certied drawings.

Ductile Iron maintains the anti-corrosive properties of Cast Iron

REFERENCED STANDARDS & CODES

CODE DESCRIPTION

ANSI B16.42 Ductile Iron Pipe Flanges and Flanged Fittings

ANSI B16.5 Pipe Flanges & Flanged Fittings

API 594 Wafer, Wafer-Lug, & Double Flanged Type Check Valve

API 598 Valve Inspection and Testing

MSS SP-6 Standard Finishes for Connecting-end Flanges

MSS SP-25 Standard Marking System for Valves

MSS SP-55 Quality Standard for Valve Castings

pressure/ temperature rating

(1)

Pressure Class Ductile Iron A536 Class 150

WOG

(Non-shock) 250 PSI @ 100 °F

seat and spring temperature ratings

(1)

SEAT (O-Ring) Temperature Range

Buna-N -20 °F @ 250 °F

SPRING Maximum Temperature

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.