Metal To Metal Seat Ball Valve

Metal to metal seat ball valve specifications

High Temperature Service
General soft seated ball valves working temperature is limited up to 400°F, but metal-seated ball valves are guaranteed for a maximum service temperature of 800 °F.
Low Pressure Reliable Sealing
YIHUAN metal-seated ball valves adopt seat spring structure, which can push upstream seat tightly against the ball surface creating a reliable sealing even if extremely low pressure.
Pressure Test
Metal-seated ball valves maximum allowable seat leakage:
Air: ANSI/FCI 70-2 Class V
Absolute Fire Safe Guarantee
YIHUAN metal-seated ball valves are absolute fire safe design. Metal-to-metal contact is designed between ball and seat, where is unconditional fire safe function. Flexible graphite gasket can prevent fluid leakage from between body & seat or body & adapter even if high temperature environments to reach fire-safe purpose. In addition, other sealing components such as stem packing can also reach fire-safe function and prevent external leakage, so all parts of the valve will not be damaged by high temperature service.
Blow-out Proof Stem& Anti-Static Device
As general ball valves, YIHUAN metal-seated ball valves are provided with blow-out proof stem& anti-static device.

Metal to metal seat ball valve material specifications

No.	Part	Material
1	Body	A216-WCB A352-LCB A351-CF8, CF8M, CF3, CF3M, Duplex
2	Seat	ASTM A182-F6+STL, 304+STL, F316+STL, F316L+STL
3	Antistatic Spring	Stainless Steel S.S.316
4	Thrust Washer	PTFE PPL
5	Screw	ASTM A193-B7, B8
6	Limited Plate	1015+Cr. Carbon Steel+Cr.
7	Lever	A216-WCB
8	Gland Flange	A216-WCB A351-CF8
9	Packing	PTFE Graphite
10	Stem	ASTM A182-F6, F304, F316, F316L, F304L,17-4PH, F51
11	Gasket	Stainless Steel+Graphite S.S.316+Graphite
12	Ball	ASTM A182-G6+N, F304+N, F316+N, F51+N
13	Seat Gasket	ASTM A182-F6, F304, F316, F316L
14	Bonnet	A216-WCB A352-LCB A351-CF8, CF8M, CF3, CF3M, Duplex
15	Seat Spring	Inconel X-7505 S.S.304 S.S.316
16	Seat Sealing	Graphite
17	Stud	ASTM A193-B7, B7M, B8, B8M
18	Nut	ASTM A194-2H, 2HM, 8, 8M

Full bore metal to metal seat ball valve class 150 dimensions & weight

Size	d	A	H	W	Weight
in	mm	mm	mm	mm	Kg
1/2	13	108	75	130	2.3
3/4	19	117	84	170	2.5
1	25	127	90	170	3.5
1-1/2	38	165	127	250	7.3
2	51	178	140	250	9.8
2-1/2	64	191	164	350	15
3	76	203	177	350	18
4	102	229	206	420	33
5	125	356	292	700	57
6	152	394	320	*1000	66
8	203	457	398	*320	170
10	254	533	495	*350	255
12	305	610	580	*400	390
14	337	686	625	*500	510
16	387	762	720	*500	820
18	438	864	770	*500	1010
20	489	914	840	*500	1828

Full bore metal to metal seat ball valve class 300 dimensions & weight

Size	d	A	H	W	Weight
in	mm	mm	mm	mm	Kg
1/2	13	140	75	130	3.5
3/4	19	152	84	170	4.2
1	25	165	90	170	5.8
1-1/2	38	191	127	250	10.5
2	51	216	140	250	14
2-1/2	64	241	164	350	19
3	76	283	177	350	31
4	102	305	206	420	54
6	152	403	320	*280	135
8	203	502	398	*320	210
10	254	568	495	*350	391
12	305	648	580	*400	550
14	337	762	625	*500	710
16	387	838	720	*500	1250
18	438	914	770	*500	1300
20	489	991	840	*500	2180
24	591	1143	920	*600	2930

Reduced bore metal to metal seat ball valve class 150 dimensions & weight

Size	d	d1	A	H	W	Weight
in	mm	mm	mm	mm	mm	Kg
3/4×1/2	13	19	117	75	130	2.7
1×3/4	19	25	127	84	170	3.0
1-1/2×1	25	38	165	90	170	4.3
2×1-1/2	38	51	178	127	250	9.5
2-1/2×2	51	64	190	140	250	12
3×2	51	76	203	140	250	16.5
4×3	76	102	229	177	350	24
6×4	102	152	394	206	420	43
8×6	152	203	457	320	*1000	85.5
10×8	203	254	533	398	*320	214
12×10	254	305	610	495	*350	284
14×12	305	337	686	580	*400	418
16×14	337	387	762	625	*500	612
18×16	387	428	864	720	*500	970
20×18	428	489	914	770	*500	1137
24×20	489	591	1067	840	*500	2000

Reduced bore metal to metal seat ball valve class 300 dimensions & weight

Size	d	d1	A	H	W	Weight
in	mm	mm	mm	mm	mm	Kg
3/4×1/2	13	19	152	75	130	4.0
1×3/4	19	25	165	84	170	5.0
1-1/2×1	25	38	190	90	170	7.0
2×1-1/2	38	51	216	127	250	12
2-1/2×2	51	64	241	140	250	17
3×2	51	76	283	140	250	21.5
4×3	76	102	305	177	350	37
6×4	102	152	403	206	420	66
8×6	152	203	502	320	*280	164
10×8	203	254	568	398	*320	350
12×10	254	305	648	495	*350	400
14×12	305	337	762	580	*400	590
16×14	337	387	838	625	*500	850
18×16	387	428	914	720	*500	1220
20×18	428	489	991	770	*500	1460
24×20	489	591	1143	840	*500	2220

Trunnion Mounted Gear Operated
Note: 1. The technical data is subject to amend without notice, while is subject to the actual product.
2. If you have any alteration, please note when you ordering.