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Model: Z941H
Nominal diameter: DN40 ~ 1200mm
Nominal pressure: PN1.6 ~ 16.0MPa
Working temperature: ≤-29 ℃ ~ 550 ℃
Main material: WCB, ZGlCr5MO, ZGlCrl8Ni9Ti, ZG00Crl7Nil4M02
Applicable medium: water, oil, steam, and acids, bases, ammonia, urea, sulfur-containing natural gas
operation: manual, gear transmission, electric, pneumatic
connection size: GB / T12221, JB79
inspection and testing: JB / T9092

First, the main purpose of large-caliber electric valve

High and medium pressure flanged gate valve for the nominal pressure PN1.6 ~ 16.0MPa, the working temperature ≤-29 ℃ ~ 550 ℃ of petroleum, chemical, hydraulic, thermal power plant in various systems of pipeline, cut off or connected to the pipeline medium . Suitable media: water, oil, steam, and acid, alkali, ammonia, urea, sulfur and other natural gas. Mode of operation are: manual, gear transmission, electric, pneumatic and so on.
 

Second, large-diameter electric gate valve application specifications

Design and manufacture		GB / T12234
Connector size	Structure length	GB / T12221
	Flange size	JB79
Inspection and testing		JB / T9092
material	Carbon steel	GB / T12229
	stainless steel	GB / T12230
Sign		GB / T12220
Availability		JB / T7928

 

Third, large-diameter electric valve structure and characteristics

1, Selection of sophisticated, in line with relevant standards at home and abroad, the overall high-quality materials. 
 2, in line with the requirements of advanced standards at home and abroad, reliable sealing, excellent performance, handsome in appearance. 
 3, advanced and reasonable pairs of seal pair, gate and valve seat sealing surface with different hardness Stellite (Stellite) cobalt-based hardfacing welded together, reliable sealing, high hardness, wear resistance, high temperature resistance, corrosion resistance , Good scratch resistance, long life. 
 4, the stem by quenching and nitriding surface treatment, good corrosion resistance, scratch resistance and wear resistance. 
 5, the use of wedge-type flexible gate structure, setting large diameter thrust bearings, friction is small, and with a collision manually, opening and closing easily. 
 6, Can adopt all kinds of pipe flange standard and flange sealing surface to meet various engineering needs and user requirements.

 

Fourth, large-diameter electric valve parts and materials and the main purpose

Body	cap	Valve plate	Seat	Valve stem	filler	Suitable media	Applicable temperature (≤ ℃)
WCB		WCB + D507MO	D577	2Crl3	Flexible graphite	Water, oil, steam	425
ZGlCr5MO		ZGlCr5M0 + Stellite12	1Crl8Ni9 + Stellite6	25Cr2M01VA	Flexible graphite	Water, oil, steam	550
ZGlCrl8Ni9Ti		Crl a Ni2	1Crl8Ni9 + Stellite6	1Crl8Ni9Ti	PTFE	Nitric acids, bases	200
ZG00Crl7Nil4M02		316L + Stellite12	316L + Stel1ite6	316L	PTFE	Urea, Methylammonium solution, Phosphoric acid	200

 

Fifth, large-diameter electric gate valve main dimensions

Convex flange  RF  Z940H  Z940Y  Z940W  Z940F  Z941H  Z941Y  Z941W  Z941F  16C  16P  16R  16I	1.6MPa
	DN	L	D	D1	D2	b	Z-φd	H	Denso models
	40	200	145	110	85	16	4-φ18	595	DZW10
	50	250	160	125	100	16	4-φ18	653	DZW10
	65	265	180	145	120	18	4-φ18	665	DZW10
	80	280	195	160	135	20	8-φ18	725	DZW15
	100	300	215	180	155	20	8-φ18	787	DZW20
	125	325	245	210	185	22	8-φ18	934	DZW20
	150	350	280	240	210	24	8-φ23	955	DZW20
	200	400	335	295	265	26	12-φ23	1105	DZW30
	250	450	405	335	320	30	12-φ25	1343	DZW30
	300	500	460	410	375	30	12-φ25	1516	DZW45
	350	550	520	470	435	34	16-φ25	1678	DZW90
	400	600	580	525	485	36	16-φ30	1849	DZW120
	450	650	640	585	545	40	20-φ30	1937	DZW120
	500	700	705	650	608	44	20-φ34	2234	DZW180
	600	800	840	770	718	48	20-φ41	2432	DZW250
	700	900	910	840	788	50	24-φ41	2489	DZW250
	800	1000	1020	950	898	52	24-φ41	2643	DZW350
	900	1100	1120	1050	998	54	28-φ41	2935	DZW500
	1000	1200	1255	1170	1100	56	28-φ48	3410	DZW500
	1200	1300	1485	1390	1325	58	32-φ54	3850	DZW500