API Swing Check Valve

API Check Valve, also known as non-return valve, one-way valve, reverse flow valve, is an automatic valve, its main function is to prevent the medium from flowing back, prevent the pump and drive motor from reversing, and the release of the container medium.

API check valves produced by TOT Valve are designed and manufactured in full accordance with American standards, with beautiful and advanced structures.

Description

The API swing check valve provided by TOT is a stainless steel check valve. This stainless steel swing sheck valves also known as tilt disc valves a high-quality stainless steel casting body.

The API swing check valves we produce are valves that automatically open and close the valve discs based on the flow of the medium itself, which you can use to prevent medium backflow.

The valve disc hanging on the top of the valve allows water to flow in only one direction with minimal force (1/2 pound of opening pressure), and it can prevent attempts to flow in the opposite direction in your application.

Structural Characteristics

– Excellent flow and minimized friction loss

– Compact and reasonable structural design, beautiful appearance

– Excellent performance in humid or corrosive environments

– Product design and manufacturing meet the requirements of API advanced standards, reliable sealing and excellent performance

– A full range of valve body materials, packing and gaskets are reasonably selected according to actual working conditions or user requirements, Applicable to various pressure, temperature and medium working conditions

Next, we will introduce the relevant data on the design and manufacturing execution specifications of API swing check valve, materials used for main components, and specifications, etc., which we hope will help you choose the appropriate swing check valve for your project application.

API Swing Check Valve Specification

Design	Structure Length	Connection flange	Test and Inspection	Pressure & Temperature
BS 1868/API 6D ASMEB16.34	ASME B16.10	ASME B16.5 SMEB16.47A	API 598/API 6D	ASME B16.34

Swing Check Valve Performance Parameter

In order for the swing check valve to work properly and perform optimally, you should first understand its pressure limit range when making a choice. Below are the pressure test results of our API swing check valve for your reference.

Name	150(Lb)	300(Lb)	600(Lb)	900(Lb)	1500(Lb)	2500(Lb)
PN(MPa)	2.0	5.0	10.0	15.0	25.0	42.0
Shell Strength Test Pressure( MPa)	1.5 Times the nominal pressure at room temperature
High-pressure Sealing Test Pressure(MPa)	1.1 Times the nominal pressure at room temperature
Nominal Pressure at Room Temperature(MPa)	According to ASME B16.34 pressure temperature rating

Swing Check Valve Main Components Material

The TOT Valve body are cast or forged from a variety of high-quality materials, including stainless steel, cast steel and alloy steel, depending on the requirements of your swing check valve application scenario. The main materials of Gasket are Graphite.

If you are interested in our swing check valve materials, you can contact us by leaving your information in the form on the right.

Part	Material
Body	A216 WCB	A217 WC6	A351 CF8	A351 CF8M	A351 CF3	A351CF3M
Valve Cover	A216 WCB	A217 WC6	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
valve plate	A216 WCB	A217 WC6	A351 Cf8	A351 CF8M	A351 CF3	A351 CF3M
sealingface	13Cr/STL	STL
Stem	A182 F6a	A182 F11	A182 F304	A182 F316	A182 F304L	A182 F316L
Gasket	304+Flexible Graphite/Soft Iron	304+Flexible Graphite/F304	304+Flexible Graphite/F304	316+Flexible Graphite/F316	304L+Flexible Graphite/F304L	316L+Flexible Graphite/F316L
Bolt	A193 B7	A193 B16	A193 B8	A193 B8M	A193 B8	A193 B8M
Nut	A194 2H	A1944	A1948	A1948M	A1948	A1948M
Temperature	-29~425℃	-29~540℃	-46~425℃	-46~425℃	-46~425℃	-46~425℃
Suitable Medium	Water,Steam,Oil,etc.	Steam	Nitric Acid Weak Corrosion Media

Main External and Connection Dimension

TOT Valve can provide you with API Swing Check Valve of various sizes and models. We list all existing API Swing Check Valve Sizes.

The data we provide can be used for your reference. If you do not have the swing check valve size you need, you can contact us immediately. Our professional sales manager will contact you and can provide you with exclusive ODM and OEM services.

Class 150LB API Swing Check Valve

in	d	L	D	C	g	T	t	H	n-Φ
1/2″	15	108	89	60.5	35	12	1.6	–	4-15
3/4″	20	117	98	70.0	43	12	1.6	–	4-15
1″	25	127	108	79.5	51	12	1.6	–	4-15
1-1/4″	32	140	117	89.5	64	13	1.6	–	4-15
1-1/2″	40	165	127	98.5	73	15	1.6	–	4-15
2″	50	203	152	120.5	92	16	1.6	161	4-19
2-1/2″	65	216	178	139.5	105	18	1.6	180	4-19
3″	80	241	190	152.5	127	19	1.6	190	4-19
4″	100	292	229	190.5	157	24	1.6	203	8-19
5″	125	330	254	216	186	24	1.6	229	8-22
6″	150	356	279	241.5	216	26	1.6	257	8-22
8″	200	495	343	298.5	270	29	1.6	292	8-22
10″	250	622	406	362	324	31	1.6	355	12-25
12″	300	698	483	432	381	32	1.6	396	12-25
14″	350	787	533	476	413	35	1.6	445	12-29
16″	400	864	597	540	470	37	1.6	490	16-29
18″	450	978	635	578	533	40	1.6	520	16-32
20″	500	978	698	635	584	43	1.6	546	20-32
24″	600	1295	813	749.5	692	49	1.6	880	20-35
26″	650	1295	786	744.5	711	41	1.6	910	36-22
28″	700	1448	837	795.5	762	44	1.6	935	40-22
30″	750	1524	887	846.0	813	44	1.6	970	44-22

Class 300LB API Swing Check Valve

in	d	L	D	C	g	T	t	H	n-Φ
1/2″	15	152	95	66.5	35	15	1.6	–	4-15
3/4″	20	178	117	82.5	43	16	1.6	–	4-19
1″	25	203	124	89	51	18	1.6	–	4-19
1-1/4″	32	216	133	98.5	63	19	1.6	–	4-19
1-1/2″	40	229	156	114.5	73	21	1.6	–	4-22
2″	50	267	165	127	92	22	1.6	178	8-19
2-1/2″	65	292	190	149	105	25	1.6	190	8-22
3″	80	318	210	168	127	29	1.6	216	8-22
4″	100	356	254	200	157	32	1.6	241	8-22
5″	125	400	279	235	186	35	1.6	267	8-22
6″	150	444	318	270	216	37	1.6	305	12-22
8″	200	533	381	330	270	41	1.6	368	12-25
10″	250	622	444	387.5	324	48	1.6	394	16-29
12″	300	711	521	451	381	51	1.6	445	16-32
14″	350	838	584	514.5	413	54	1.6	470	20-32
16″	400	864	648	571.5	470	57	1.6	533	20-35
18″	450	978	711	628.5	533	60	1.6	584	24-35
20″	500	1016	775	686	584	64	1.6	610	24-35
24″	600	1346	914	813	692	70	1.6	900	24-41

Class 600LB API Swing Check Valve

in	d	L	D	C	g	T	t	H	n-Φ
2″	50	292	165	127	92	33	6.4	203	8-19
2-1/2″	65	330	190	149	105	36	6.4	229	8-22
3″	80	356	210	168	127	39	6.4	235	8-22
4″	100	432	273	216	157	45	6.4	286	8-25
5″	125	508	330	266.5	186	52	6.4	292	8-29
6″	150	559	356	292	216	55	6.4	330	12-29
8″	200	660	419	349	270	63	6.4	381	12-32
10″	250	787	508	432	324	71	6.4	457	16-35
12″	300	838	559	489	381	74	6.4	584	20-35
14″	350	889	603	527	413	77	6.4	635	20-38
16″	400	991	686	603	470	84	6.4	684	20-41
18″	450	1092	743	654	533	90	6.4	752	20-44
20″	500	1194	813	724	584	96	6.4	975	24-44