Model: Z541H / W / Y
Nominal diameter: 2 "to 48"
Nominal: 150Lb~1500Lb
Host material: carbon steel, stainless steel, duplex steel
Drive mode: hand wheel, gear, electric, pneumatic
Basic standards : API 600, BS1414, ASME B16.34
Flange connection: ASME B16.5, ASME B16.47,
Butt weld connection: ASME B16.25
Face to face dimension: ASME B16.10, EN558
Pressure - Temperature class: ASME B16.34
Testing: API 598, BS 6755, ASME B16.34

First, the American standard large-diameter gate valve Introduction

Gate valve pressure, temperature and caliber range, especially for medium and large diameter pipe.

From the simplest American standard valve to a very complex automatic control system used in a variety of American Standard valves, the variety and specifications are quite diverse. The valve can be used to control the flow of various types of fluids such as air, water, steam, corrosive media, muds, oils, liquid metals and radioactive media.

 Second, the American standard large-diameter gate valve product structure characteristics

1, product design and manufacture according to API standards, reliable sealing, excellent performance, supporting the use of imported equipment.

2,600Lb above gate and valve seat seal with stellite stellite (cobalt-based hardfacing), wear-resistant, high temperature, corrosion resistance, good scratch resistance, long life

3, the stem by quenching and nitriding surface treatment, have good corrosion resistance and scratch resistance.

4, using wedge-type flexible gate structure, large diameter set rolling bearings, opening and closing easily.

5, the full range of valve materials, packing, gasket reasonable selection according to the actual conditions or user requirements, can be applied to a variety of pressure, temperature and medium conditions.

6,1500LB, 2500LB The use of self-tight pressure chamber sealed structure. Sealing performance increases with increasing internal pressure, high reliability.

7, inverted seal with stainless steel threaded seal seat or body made of welded austenitic stainless steel, reliable sealing, packing replacement and maintenance can be carried out without downtime, convenient and quick does not affect the system operation. 
 
 Third, the main connection and dimensions

DN		150Lb convex flange RF
mm	in	L	D	D1	D2	b	Z-φd	H	D0
15	1/2	108	89	60.5	35	11.5	4-φ16	165	100
20	3/4	117	98	70	43	13	4-φ16	190	100
25	1	127	108	79.5	51	14.5	4-φ16	230	120
32	1 1/4	140	117	89	63.5	16	4-φ16	245	120
40	1 1/2	165	127	98.5	73	17.5	4-φ16	285	150
50	2	178	152	120.5	92	19.5	4-φ19	325	150
65	2 1/2	190	178	139.5	105	22.5	4-φ19	350	180
80	3	203	190	152.5	127	24	4-φ19	380	200
100	4	229	229	190.5	157	24	8-φ19	460	200
125	5	254	254	216	186	24	8-φ22	630	250
150	6	267	279	241.5	216	25.5	8-φ22	635	250
200	8	292	343	298.5	270	2	8-φ22	765	280
250	10	330	406	362	324	30.5	12-φ26	895	300
300	12	356	483	432	381	32	12-φ26	1080	350
350	14	381	533	476	413	35	12-φ29	1295	350
400	16	406	497	540	470	37	16-φ29	1435	400
450	18	432	635	578	533	40	16-φ32	1625	400
500	20	457	699	635	584	43	20-φ32	1830	450
600	24	508	813	749.5	692	48	20-φ35	2175	500
650	26	559	786	745	711	41.5	36-φ22	2235	550
700	28	610	837	795	762	44.5	40-φ22	2310	600
750	30	610	887	846	813	44.5	44-φ22	2695	600
800	32	660	941	900	864	46	48-φ22	3710	-
900	36	711	1057	1011	972	52.5	44-φ26	3925	-
1000	40	811	1175	1121	1080	56	44-φ29	4320	-