Flanged Segmented Ball Valve SK40

DN

50~600 (2"~24")

PN

1.0~6.4 (Class150~600)

Temperature Range

-59°C~650°C

Connection

Flanged

Installation Direction

Unidirectional

Design

GB/T26146

Face to Face

GB/T12221, ASME B16.10

Flange Drilling

GB/T9113, ASME B16.5, EN1092, GOST12820, GOST33259

Top Connection

ISO5211, GOST55510

Inspection

GB/T26480, ISO5028, API598, JB/T9092

Body Materials

WCB, LCC, LC1, C5,WC6, CF8, CF8M, 321, 316Ti, 904L, 310S, Duplex Stainless Steel

Ball Materials

WCB, LCC, LC1, C5,WC6, CF8, CF8M, 321, 316Ti, 904L, 310S, Duplex Stainless Steel

Stem Materials

420, 35CrMoA, F6a, F11, F304, F316, F321

Seat Materials

PTFE, PEEK, 420, Stellite alloy, Hastelloy, Inconel, Monel

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Features & Benefits

SK40 is a relatively new type of segmented ball valve. It has some unique advantages, such as frictionless switches, not easily worn seals, and small opening and closing torque. This can reduce the specifications of the equipped actuator. It’s equipped with a multi-turn electric actuator, and the medium can be adjusted and tightly cut off.

A. Connection

High platform or yoke under actuator can be selected, which allows to install electric/pneumatic actuators by different standards.

B. Gland

The gland effectively protects the internal packing, thus preventing the medium from leaking out from the stem.

C. Packing

As a common packing material, flexible graphite is cheap, easy to replace and can bear high & low temperature.

D. Stem

Different materials can be selected according to working conditions.

E. Disc

Semi-circular channel has no friction when opening and closing. The seal is not easy to wear, and the opening and closing torque is small. The resistance is small when the valve is opened, and the reinforced design of the sphere makes the sphere not easily deformed. The V-shaped structure segment has a cutting effect.

Industry Options

Materials	Characteristics	Low Temp. ℃	High Temp. ℃	Recommended ℃
PTFE	Heat, cold, acid, alkali, organic solvents resistant	-60	180	-45~150
RPTFE	Corrosion resistance, low friction coefficient	-60	180	-45~150
PTFE+Glass	Heat, cold, acid, alkali, organic solvents resistant	-60	200	-45~180
FPM (Viton)	Chemical and most oils resistance, (except ketones & esters)	-20	200	-5~150
NBR	Oil resistivity	-30	100	-15~90
PEEK	High temperature and chemical resistance	-60	300	-45~260
Ceramic fiber	Fire, high temperature resistance, low thermal conductivity	-196	1050	-60~950
Metal to metal	High temperature, high pressure, wear, corrosion resistance	Refer to the metal material

Dimensions

Flanged Segmented Ball Valve SK40's Drawing

GB/T 9113 PN16

DN	L	D	D1	D2	b	f	n-Φd
50	178	165	125	102	16	3	4-18
65	190	185	145	122	18	3	8-18
80	203	200	160	138	20	3	8-18
100	229	220	180	158	20	3	8-18
125	254	250	210	188	22	3	8-18
150	267	285	240	212	24	3	8-22
200	292	340	295	268	26	3	12-22
250	330	405	355	320	30	3	12-26
300	356	460	410	378	30	4	12-26
350	430	520	470	438	34	4	16-26
400	530	580	525	490	36	4	16-30
450	580	640	585	550	40	4	20-30
500	630	715	650	610	44	4	20-33
600	800	840	770	725	48	5	20-36