API Standard Flange Gate Valve-Gate valve series-闸阀厂家-上海冠环阀门制造有限公司

Product Structure Features

The opening and closing component of the API standard flange gate valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. Suitable for pipelines with ANSI Class150~2500, operating temperatures of -29~425 ℃ (carbon steel) and -40~500 ℃ (stainless steel), used to cut off or connect media in pipelines. By selecting different materials, it can be suitable for various media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing media, and urea.

The main structure features include:

1.The products designs are in accordance with the API600 or API6D, with rational structure, reliable seal, excellent performance, and pretty appearance.
2.Co hard alloy welded sealing surface、with pressures≥Class600 which is wearing resistant, erosion proof, abrasion proof and long-lived.
3. The surface and the adjusting media of the valve shaft are nitrogenizated so that it is erosion and abrasion resistant.
4. The central cavity with pressures≥Class900 adopts self-tightening sealing structure,which means that the sealing will rise with the intramural pressure, and the sealing is highly reliable.
5. There is backward sealing structure in the valve, so the sealing is reliable.
6. The material of the filling and the size of the flanged ends & butt-welding ends can be chosen and matched according to the applications and the applications and the requirements of the users. That can satisfies all kinds of working requirements.

Main external connection dimensions

Class	NPS (in)	L			D	D1	D2	b-f	n-d	H	H1	W	W1	WＴ(kg)
Class	NPS (in)	RF	RTJ	BW	D	D1	D2	b-f	n-d	H	H1	W	W1	WＴ(kg)
Class 150	1/2	108	119	108	89	60.5	35	10-1.6	4-16	195	-	120	-	4
	3/4	117	130	117	99	69.9	43	10.5-1.6	4-16	210	-	120	-	5
	1	127	140	127	108	79.2	51	11.5-1.6	4-16	240	-	140	-	7
	11/4	140	153	140	117	88.9	64	13-1.6	4-16	300	-	180	-	10
	11/2	165	178	165	127	98.6	73	14.5-1.6	4-16	395	-	200	-	14
	2	216	191	216	152	120.5	92	16-1.6	4-18	400	-	200	-	19
	21/2	241	203	241	178	139.5	105	18-1.6	4-18	435	-	200	-	25
	3	282	216	282	191	152.5	127	19-1.6	4-18	515	-	250	-	33
	4	305	241	305	229	190.5	157	24-1.6	8-18	595	-	280	-	49
	5	381	267	381	254	216	186	24-1.6	8-22	725	-	280	-	62
	6	403	279	403	279	241.5	216	26-1.6	8-22	780	820	300	310	77
	8	419	305	419	343	298.5	270	29-1.6	8-22	975	1020	350	310	123
	10	457	343	457	406	362	324	31-1.6	12-26	1150	1200	400	310	188
	12	502	368	502	483	432	381	32-1.6	12-26	1380	1430	450	310	288
	14	572	394	572	533	476	413	35-1.6	12-29.5	1545	1580	500	310	385
	16	610	419	610	597	540	470	37-1.6	16-29.5	1733	1780	500	460	500
	18	660	445	660	635	578	533	40-1.6	16-32.5	1915	1990	500	460	601
	20	711	470	711	699	635	584	43-1.6	20-32.5	2122	2220	600	460	764
	24	813	521	813	813	749.5	692	48-1.6	30-35.5	2520	2600	600	460	1007