Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

API Standard Trunnion Mounted Metal Ball Valve
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Phone：+86（577）6730 7899
Mobile：+86 189 6779 6135
Fax：+86（577）6738 7099
Email：Yannie@kaiweixi.com
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Website：https://www.kaiweixi.com

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API Standard Trunnion Mounted Metal Ball Valve

Model：API
Specification：4"-24"
Temperature：≤450℃
Medium：water, gas, oil

Pressure：Class150LB~Class1500LB
Connection method：Flange
Driving method：Manual, pneumatic, electric ，gear
Material：Stainless Steel, carbon steel

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API Standard Trunnion Mounted Metal Ball ValveOverview

API Standard Trunnion-Mounted Metal Ball Valve Overview

The API Standard Trunnion-Mounted Metal Ball Valve is a high-performance valve designed and manufactured in strict compliance with the standards of the American Petroleum Institute (API). It features a trunnion-mounted ball structure and metal Metal technology. The valve body is made of forged or cast steel, with the ball fixed and supported by upper and lower trunnions. The sealing pair consists of a hard-alloy overlay-welded spherical surface and a seat, forming a robust metal-to-metal seal.This valve conforms to API 6D, API 608, and other relevant standards. Sealing is achieved through spring preload or pressure assistance, ensuring a tight metal-to-metal seal. It is suitable for demanding operating conditions, including high temperatures, high pressures, and media containing solid particles or corrosive substances. Widely used in critical systems such as petroleum, natural gas, chemical, coal chemical, and long-distance pipelines, it is a high-end industrial valve designed to achieve zero-leakage shut-off and reliable control.

API Standard Trunnion Mounted Metal Ball Valve

API Standard Trunnion Mounted Metal Ball ValveCharacteristic

API Standard Trunnion-Mounted Metal Ball Valve Features

1. Strict Compliance with API Standards:

The entire design, manufacturing, and testing process adheres to standards such as API 6D, API 608, and others, meeting stringent American standard requirements for pressure class, structural design, materials, and fire testing (API 607).

2. Metal Hard Seal for Demanding Conditions:

The sealing surfaces of the ball and seat are made of hard alloy materials, offering high resistance to temperature, wear, and erosion. This makes the valve suitable for media containing solid particles and frequent operation.

3. Low-Torque Design with Trunnion-Mounted Ball:

The ball is supported by trunnions, reducing rotational friction and ensuring stable operating torque. The spring-loaded seats provide initial sealing and feature automatic wear compensation.

4. Fire-Safe and Bidirectional Sealing:

Compliant with API 607 fire-safe standards, the valve maintains sealing through its metal sealing pair even if soft sealing materials fail. It typically offers bidirectional sealing capability.

5. Long Service Life and Smart Maintenance:

Designed for extended service life, its maintenance intervals are significantly longer than those of soft-seal valves. The valve can be equipped with a seat injection system, supporting online maintenance and condition monitoring to reduce lifecycle costs.

API Standard Trunnion Mounted Metal Ball Valvestructure principle

API Standard Trunnion Mounted Metal Ball Valve Structure Diagram

Parts Name Material List

NO.	Name	Material
1	body	CF8,CF3M
2	ball	304,316L
3	seal gasket	PTFE、PPL、Hard Alloy, Stainless Steel
4	packing	Stainless Steel + Flexible Graphite、PTFE
5	stem	304,316L

API Standard Trunnion Mounted Metal Ball Valvetechnology parameter

性能规范表Performance Specification
公称压力Nominal Pressure	2-25	Mpa
强度试验压力Shell Test	3-37.5
密封试验压力Seal Test	2.2-27.5
适用温度Suitable Temp.	450	℃

API Standard Trunnion Mounted Metal Ball Valvestandard size

Dimensions Standard Requirements

1. The structural length of the valve shall conform to the standard ASME16.10.

2. The connecting flange shall conform to the standard ASME16.50.

API Standard Trunnion Mounted Metal Ball Valve View Drawing

API Standard Trunnion Mounted Metal Ball Valve Dimensions Table

150LB

NPS		2"	21/2"	3"	4"	5"	6"	8"	10"	12"	14"	16"	18"	20"	24"	28"	32"	36"
DN		51	64	76	102	127	152	203	254	305	337	387	438	489	591	686	781	876
L	RF	178	191	203	229	356	394	457	533	610	686	762	864	914	1067	1245	1372	1524
L	BW	216	241	283	305	381	457	521	559	635	762	838	914	991	1143	1346	1524	1727
H1		102	114	127	152	184	219	273	360	395	430	470	550	580	700	800	950	1100
H2		107	125	152	178	300	330	398	495	580	625	670	698	840	1050	1100	1150	1247
E								116	116	171	171	257	257	257	150	83	83	123
W		230	400	400	650	1050	1050	600	600	800	800	800	800	800	800	800	800	800
WT（kg）		120	16	22	35	58	74	205	322	460	576	864	1280	1600	3540	4500	5940	7540

300LB

NPS		2"	21/2"	3"	4"	5"	6"	8"	10"	12"	14"	16"	18"	20"	24"	28"	32"	36"
DN		51	64	76	102	127	152	203	254	305	337	387	438	489	591	686	781	876
L	RF	216	241	283	305	381	403	502	568	648	762	838	914	991	1143	1346	1524	1727
	BW	216	241	283	305	381	457	521	559	635	762	838	814	991	1143	1346	1524	1727
H1		102	114	127	152	184	219	273	360	395	430	470	550	580	700	800	950	1100
H2		107	125	152	178	300	330	398	495	580	625	670	698	840	1050	1100	1150	1247
E								116	116	171	171	257	257	257	150	83	83	123
W		230	400	400	650	1050	1050	600	600	800	800	800	800	800	800	800	800	800
WT（kg）		15	24	30	55	87	118	255	370	533	640	1030	1542	2100	4200	5300	7860	8684

400LB

NPS		2"	21/2"	3"	4"	6"	8"	10"	12"	14"	16"	20"	24"
DN		51	64	76	102	152	203	254	305	337	387	489	591
L	RF	292	330	356	406	495	597	673	762	826	902	1054	1232
	RTJ	295	333	359	410	498	600	676	765	829	905	1060	1241
H1		114	124	133	159	250	294	395	445	500	530	660	800
H2		108	155	197	235	300	374	445	512	550	615	810	1010
E		116	116	116	116	116	171	171	257	257	257	150	83
W		600	600	600	600	600	800	800	800	800	800	800	800
WT(kg)		23	35	49	91	192	355	640	880	1100	1540	2800	5300

600LB

NPS		2"	21/2"	3"	4"	6"	8"	10"	12"	14"	16"	20"	24"	28"
DN		51	64	76	102	152	203	254	305	237	337	489	591	686
L	RF	292	330	356	432	559	660	787	838	889	991	1194	1397	1549
	RTJ	295	333	359	435	562	664	791	841	892	994	1200	1407	1562
H1		114	124	133	159	250	294	395	445	500	530	660	800	900
H2		108	155	197	235	300	374	445	512	550	615	810	1010	1180
E		116	116	116	116	116	171	171	257	257	257	150	83	123
W		600	600	600	600	600	800	800	800	800	800	800	800	800
WT（kg）		35	38	55	102	232	390	710	960	1700	1970	3250	5800	6700

900LB

NPS		2"	21/2"	3"	4"	6"	8"	10"	12"	14"	16"	18"	20"	24"
DN		51	64	76	102	152	203	254	305	324	375	426	473	572
L	RF	368	419	381	457	610	737	838	965	1029	1130	1219	1321	1549
	RTJ	371	422	384	460	613	740	841	968	1038	1140	1232	1334	1568
H1		217	241	259	297	360	322	420	470	510	600	700	720	810
H2		126	158	191	216	270	394	502	572	675	762	866	894	956
E		116	116	116	116	171	171	257	257	150	150	180	180	220
W		600	600	600	600	800	800	800	800	800	800	800	800	800
WT（kg）		50	60	80	125	270

1500LB

NPS		2"	21/2"	3"	4"	6"	8"	10"	12"	14"	16"	18"	20"	24"
DN		51	64	76	102	146	194	241	289	318	361	395	440	504
L	RF	368	419	381	546	705	832	991	1130	1257	1384	1537	1664	1698
	RTJ	371	422	384	549	711	841	1000	1146	1276	1407	1559	1686	1902
H1		126	158	191	216	296	378	495	542	590	670	710	750	850
H2		217	241	259	297	365	475	578	696	761	831	900	950	1080
E		116	116	116	116	171	257	257	481	150	180	220	220	280
W		600	600	600	600	800	800	800	800	800	800	800	800	800
WT（kg）		50	75	117	216	380

Articles related to technology research and development

Wafer-type ball valve patented

The utility model provides a wafer-type float valve, which includes a valve body and a driving mechanism. The valve body is provided with a through medium channel in the axial direction, and is tubular in shape. It also includes a butterfly plate that fits and seals with the inner wall of the medium channel. The driving mechanism comprises a valve shaft that passes through the valve body and is connected to the butterfly plate, a valve rod connected to the outer end of the valve shaft in the radial direction, and a float ball connected to the valve rod. The valve rod is provided with a limit bolt that is threadedly connected to the valve body in the swinging direction. The butterfly plate can rotate relative to the valve body. The front end of the valve body at the inlet of the medium channel is provided with a filter screen, which is hollow and hemispherical in shape. The end face of the valve body opposite the filter screen is provided with an annular groove, and the open end of the filter screen is provided with a raised edge that is embedded in the annular groove. The utility model can filter the medium, is simple to install, time-saving, labor-saving, small in size, widely applicable, and can reduce the impact force of the medium on the butterfly plate.
1. A double-clip type float valve, comprising a valve body and a driving mechanism. The valve body is provided with a through medium channel in the axial direction. It is characterized in that the valve body is tubular and further comprises a butterfly plate that fits and seals with the inner wall of the medium channel. The driving mechanism comprises a valve shaft passing through the valve body and connected to the butterfly plate, a valve rod connected to the outer end of the valve shaft in the radial direction, and a float connected to the valve rod. The valve rod is provided with a limit bolt threadedly connected to the valve body in the swinging direction. The butterfly plate is rotatable relative to the valve body. The front end of the valve body located at the inlet of the medium channel is provided with a filter screen. The filter screen is hollow and hemispherical. The end surface of the valve body opposite the filter screen is provided with an annular groove. The open end of the filter screen is provided with a convex edge embedded in the annular groove.
2. A wafer-type float valve according to claim 1, characterized in that the valve rod penetrates one end of the valve shaft located outside the valve body, and is threadedly engaged with the valve rod through a nut to clamp the valve shaft and achieve positioning of the valve rod.
3. A wafer-type ball valve according to claim 2, characterized in that a step is provided at the position on the valve shaft connected to the valve body, a groove is provided at the position on the outer circumferential wall of the valve body corresponding to the step, and a gland is sleeved on the valve shaft, which is threadably connected to the groove and abuts against the step.
4. A wafer-type ball valve according to claim 3, characterized in that a sealing groove is provided on the side of the groove facing the butterfly plate, and a sealing ring sleeved on the valve shaft is arranged in the sealing groove.
5. A wafer-type ball valve according to claim 1, characterized in that an inner groove is provided on the side wall within the annular groove, and an elastic snap ring, which is used to press the convex edge and is compatible with the inner groove, is provided within the annular groove.
6. A wafer-type ball valve according to claim 5, characterized in that the bottom of the convex edge is provided with a plurality of protrusions arranged around the center of the filter screen, and the annular groove is provided with a limiting groove adapted to the protrusions.
7. A wafer-type float valve according to claim 6, characterized in that the protrusion is hemispherical. 8. A wafer-type float valve according to claim 7, characterized in that a clamping groove is provided at the junction of the protrusion and the protruding edge, and a clamping block adapted to the clamping groove is provided at the opening of the limiting groove.

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Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

API Standard Trunnion Mounted Metal Ball Valve

More API, JIS, DIN, GOST、BS Ball Valves>>

More ball valve>>

More valve>>

API Standard Trunnion Mounted Metal Ball Valve