免费看黄A级毛片_国产伦在线视频大全_福利搞笑电影_内射欧美老妇wbb_狠狠色综合色综合网络_无码专区—va亚洲v专区网站_丁香婷婷色五月激情综合_成人黄片免费看_你懂得在线观看_欧洲αV无码放荡人妇网站

Model: Z641H
Nominal diameter: DN40 ~ 600mm
Nominal pressure: PN1.6 ~ 6.4MPa
Design Standards: API 600, API6D, ASME B16.34, GB / T 12234
Construction Length: ASME B16.10, API6D, GB / T 12221
Connection Standards: ASME B16.5, ASME B16.47, GB / T 9113, JB / T 79, HG / T 20592
Pressure test: API 598, GB / T 13927, JB / T 9092
Pressure - Temperature class: ASME B16.34, GB / T 12224

Features

1, the gate has two sealing surfaces, the sealing surface to form a wedge, wedge angle varies with the valve parameters, usually 5 °.

2, wedge gate valve sealing principle is based on the wedge gate on the two sealing surfaces and the valve body when the two sealing surfaces wedged in close combination, so as to achieve sealing performance.

3, wedge-type gate valve according to the stem-driven gate opening and closing of the different ways, can be divided into Ming rod valve (lifting rod gate valve) and dark rod gate valve (rotary rod gate valve).

4, wedge gate valve structure according to the different forms can be divided into flexible gate valve and rigid gate valve.

5, the valve body is molded, the valve body and the valve cover are bolted, the flange is wound with a gaskets gasket, the customer can also use the metal ring connection when there are special requirements.

6, the channel is smooth, the flow coefficient is small. Sealing surface erosion by the media and erosion of small.

7, the sealing surface of alloy steel or carbide, wear-resistant, anti-abrasion performance.

8, using flexible graphite packing, reliable sealing, light and flexible operation.

9, the medium flow is not restricted, does not disturb the flow, does not reduce the pressure.

10, the shape is simple, the structure of short length, manufacturing technology is good, a wide range of applications.

The main form of connection size

DN	PN	L	H	h	A	C	G (kg)
40	PN16	250	675	255	120	200	29
	PN64						31
50	PN16	250	685	255	120	200	32
	PN64						40
80	PN16	280	800	340	120	200	42
	PN64	310			160	240	52
100	PN16	300	850	370	120	200	80
	PN64	350			160	240	90
125	PN16	325	1020	415	120	200	95
	PN64	400			160	240	105
150	PN16	350	1085	455	160	240	110
	PN64	450			280	360	130
200	PN16	400	1195	515	160	240	215
	PN64	500			280	360	275
250	PN16	450	1460	580	160	240	320
	PN64	550			280	360	380
300	PN16	500	1575	645	280	360	440
	PN64	600			360		500
350	PN16	550	1890	810	280	360	520
	PN64	650			360	440	580
400	PN16	600	2070	900	360	440	850
	PN64	700			420	500	910
450	PN16	650	2350	975	360	440	890
	PN64	750			420	500	1000
500	PN16	700	2500	1073	360	440	950
	PN64	800			540	620	1200
600	PN16	750	2930	1302	360	440	1100
	PN64	850			540	620	1300