Metal Seated Ball Valve

Model

Series

VALVE

Product Description

- High surface hardness (HV 1700)

- Smooth operation with low friction coefficient (Less than 0.1 ~ 0.4)

- Chemical resistance
(high resistant to brine, sulfuric acid, hydrochloric acid, and phosphoric acid)

- Constant hardness at high temperature (750℃)

*. In particular, the valve body inner surface treatment by the KCC on maximizing the service life by having a corrosion / abrasion resistance, such as seat & ball

- Metal seated ball valves with KCC surface treatment of KST show superior performance for these cases: high temperature,
conveying powder with high hardness, and chemical lines with severe corrosion.

- Despite its high hardness, it still shows reliability in manufacturing lines due to no brittle and stripping.

- Metal seats with ultra-precision machining have no leakage and show superior performance at high temperature and pressure.

KST PLANT VALVE FEATURES

KCC

The method that infiltrates to base metal after forming C-Cr by using chemical reaction in high vacuum device.

Features

1. KCC is very good at abrasion resistance as high hardness (over Hv1700), the excellent method for chemical resistance (hydroelectric acid, sulfuric acid, phosphoric acid and salt water) and the method uses in a high temperature condition(750°C) because it is excellent for friction coefficient under 0.2

2. It can protect Steam cutting and Cavitations when applying to valves for high temperature and high pressure.

3. It can lengthen products lifetime when applying to particulate material for hard abrasion and solid transfer line.

4. It can reduce cost because it is very good at corrosion resistance and can lengthen products life time when applying to petrochemical line having a severe corrosion.

KNN

The method that adsorbs nano conversion of active nitrogen molecule which is a low energy in high density by using Hollow cathode effect on processing product surface and diffuses throughout surface treatment on it.

Features

it shows excellent performance in semi-conduct line parts.

- Almost no dimension and shape deformation

- High hardness and excellent durability

- Able to control for hardened layer

- Excellent in surface hardening of stainless steel

VALVE STRUCTURE

•ANSI/FCI 70-2 Valve Leakge Classifications : CLASS Ⅵ

•Valve Inspection and Testing : API 598

Metal seated Ball Valve Dimension(JIS 10kgf/㎠)

SIZE	A			B	C
	RF	RTJ	WE
25A	127	140	127	25	125
50A	178	191	216	51	155
65A	190	203	241	64	175
80A	203	216	283	76	185
100A	229	241	305	102	210
150A	394	406	457	152	280
200A	457	470	521	203	330
250A	533	546	559	254	400
300A	610	622	635	305	445

Metal seated Ball Valve (JIS 20kgf/㎠)

SIZE	A			B	C
	RF	RTJ	WE
25A	165	178	165	25	125
50A	216	232	216	51	155
65A	241	257	241	64	175
80A	283	298	283	76	200
100A	305	321	305	102	225
150A	403	419	403	152	305
200A	502	518	521	203	350
250A	568	584	559	254	430
300A	648	663	635	305	480

Metal seated Ball Valve (ANSI CLASS #150~#2500)

SIZE	A			B	C
	RF	RTJ	WE
1″	127	140	127	25	108
2″	178	191	216	51	152
2-1/2″	190	203	241	64	178
3″	203	216	283	76	191
4″	229	241	305	102	229
6″	394	406	457	152	279
8″	457	470	521	203	343
10″	533	546	559	254	406
12″	610	622	635	305	483
14″	686	699	762	338	533
16″	762	775	838	386	597
18″	864	876	914	437	635
20″	914	927	991	490	699
24″	1067	1080	1143	592	813