Welding gate valves

NegotiableUpdate on November 02

Model

Nature of the Manufacturer: Other

Product Category: Electric power industry

Place of Origin: City, Province

Online Consult Contact Information

Overview

name: Welding gate valvesType: Z61Presure: PN1.6~PN10.0MPaSpecifications: DN50~DN800material: Carbon steel, chrome molybdenum steel, stainless steel

Product Details

The product description

Welding connection of valve is suitable for the nominal pressure PN16.0 32.0 Mpa, the working temperature of 540 ℃ or less oil, chemical industry, hydropower and thermal power plant all kinds of the pipeline system, cut off or connect pipe medium. Applicable medium such as water, oil, acid medium. Operation manual and gear drive, electric, etc.

The main connection and overall dimensions

Nominal diameter	L	a	H	PN1.6(MPa)			PN2.5(MPa)
Nominal diameter	L	a	H	D1	D2	Denso device	D1	D2	Denso device
50	250	37°30′	620	58	50	DZW10	64	49	ZB10
65	270	37°30′	714	75	65	DZW10	82	67	ZB10
80	280	37°30′	765	91	79	DZW10	95	77	ZB10
100	300	37°30′	840	110	97	DZW15	117	101	ZB15
125	325	37°30′	852	136	121	DZW15	144	126	ZB20
150	350	37°30′	875	163	146	DZW20I	172	158	ZB20
200	400	37°30′	1015	223	202	DZW20	223	202	ZB25
250	450	37°30′	1125	278	254	DZW30	278	254	ZB25
300	500	37°30′	1371	330	305	DZW45	330	305	ZC45
350	550	37°30′	1485	382	352	DZW60	382	352	ZC60
400	600	37°30′	1890	432	399	DZW60	432	399	ZC90
450	650	37°30′	1989	485	451	DZW90	485	451	ZC120
500	700	37°30′	2041	535	501	DZW120	535	499	ZC120
600	800	37°30′	2285	636	601	DZW180	636	599	ZC180
700	900	37°30′	2347	726	691	DZW250	726	689	ZC250
800	1000	37°30′	2593	826	791	DZW350	826	789	ZC350

The main connection and overall dimensions

Nominal diameter	L	D	a	PN4.0(MPa)			PN6.4MPa)			PN10.0(MPa)
Nominal diameter	L	D	a	D1	H	Electric actuator	D1	H	Electric actuator	D1	H	Electric actuator
50	280	64	37°30′	49	620	DZW10	50	622	DZW10	49	622	ZB10
65	310	83	37°30′	67	714	DZW10	66	718	DZW15	64	718	ZB15
80	350	96	37°30′	79	767	DZW15	77	770	DZW20I	75	770	ZB20
100	400	117	37°30′	101	845	DZW20I	99	845	DZW20I	97	845	ZB25
125	450	144	37°30′	126	852	DZW20I	129	852	DZW30	125	852	ZB25
150	550	172	37°30′	152	875	DZW30	150	875	DZW30	145	965	ZC45
200	650	223	37°30′	200	1015	DZW30	198	1105	DZW45	190	1105	ZC60
250	750	278	37°30′	252	1215	DZW45	246	1215	DZW60	236	1237	ZC90
300	850	330	37°30′	302	1371	DZW60	294	1424	DZW90I	282	1424	ZC120
350	950	382	37°30′	350	1507	DZW90I	342	1507	DZW120I	334	1670	ZC180
400	1050	432	37°30′	397	1912	DZW120	387	2075	DZW180	377	2075	ZC250

Note: PN1.6 (16) valve allows as PN1.0 (10) pressure level to choose.

The main connection and overall dimensions

Nominal diameter	L	a	H	PN1.6(MPa)			PN2.5(MPa)
Nominal diameter	L	a	H	D1	D2	Denso device	D1	D2	Denso device
50	250	37°30′	620	58	50	DZW10	64	49	ZB10
65	270	37°30′	714	75	65	DZW10	82	67	ZB10
80	280	37°30′	765	91	79	DZW10	95	77	ZB10
100	300	37°30′	840	110	97	DZW15	117	101	ZB15
125	325	37°30′	852	136	121	DZW15	144	126	ZB20
150	350	37°30′	875	163	146	DZW20I	172	158	ZB20
200	400	37°30′	1015	223	202	DZW20	223	202	ZB25
250	450	37°30′	1125	278	254	DZW30	278	254	ZB25
300	500	37°30′	1371	330	305	DZW45	330	305	ZC45
350	550	37°30′	1485	382	352	DZW60	382	352	ZC60
400	600	37°30′	1890	432	399	DZW60	432	399	ZC90
450	650	37°30′	1989	485	451	DZW90	485	451	ZC120
500	700	37°30′	2041	535	501	DZW120	535	499	ZC120
600	800	37°30′	2285	636	601	DZW180	636	599	ZC180
700	900	37°30′	2347	726	691	DZW250	726	689	ZC250
800	1000	37°30′	2593	826	791	DZW350	826	789	ZC350

The main connection and overall dimensions

nominal size	L	D	a	PN4.0(MPa)			PN6.4MPa)			PN10.0(MPa)
nominal size	L	D	a	D1	H	Electric actuator	D1	H	Electric actuator	D1	H	Electric actuator
50	280	64	37°30′	49	620	DZW10	50	622	DZW10	49	622	ZB10
65	310	83	37°30′	67	714	DZW10	66	718	DZW15	64	718	ZB15
80	350	96	37°30′	79	767	DZW15	77	770	DZW20I	75	770	ZB20
100	400	117	37°30′	101	845	DZW20I	99	845	DZW20I	97	845	ZB25
125	450	144	37°30′	126	852	DZW20I	129	852	DZW30	125	852	ZB25
150	550	172	37°30′	152	875	DZW30	150	875	DZW30	145	965	ZC45
200	650	223	37°30′	200	1015	DZW30	198	1105	DZW45	190	1105	ZC60
250	750	278	37°30′	252	1215	DZW45	246	1215	DZW60	236	1237	ZC90
300	850	330	37°30′	302	1371	DZW60	294	1424	DZW90I	282	1424	ZC120
350	950	382	37°30′	350	1507	DZW90I	342	1507	DZW120I	334	1670	ZC180
400	1050	432	37°30′	397	1912	DZW120	387	2075	DZW180	377	2075	ZC250

Note: PN1.6 (16) valve allows as PN1.0 (10) pressure level to choose.

The major parts material

Material code	valve body	valve plate	The piston	The valve stem	Four open loop	packing	Stem nut
C	WCB Carbon steel	WCB	A105	20Cr13	A105	graphite	ZQAL9-4
I	WC6 Chrome molybdenum steel	WC6	F11	38CrMoAL	F11	graphite	ZQAL9-4
V	WC9 Chrome molybdenum steel	WC9	F22	25Cr2MoVA	F22	graphite	ZQAL9-4

Other special material our company can also be customized according to customer's requirements.

The performance specification

Shell material	Applicable medium	Applicable temperature（℃）
Carbon steel（C type）	Water, steam, oil	≤425
Chrome molybdenum steel（I、V type）	Water, steam, oil	≤550

Nominal pressure PN（MPa）	shell	Test pressure（MPa）		upper seal
Nominal pressure PN（MPa）	shell	Seal (liquid)	Seal (gas)	upper seal
1.6	2.4	1.8	0.6	1.8
2.5	3.8	2.8	0.6	2.8
4.0	6	4.4	0.6	4.4
6.4	9.6	7	0.6	7
10	15	11	0.6	11

Execution standard:

Design criteria: JB/T3595

Structure length: GB/T12221

Groove size: JB/T3595

Experiment and test: GB/T13927

Pressure and temperature: GB/T9131 JB/T3595

Product labeling: GB/T12220

Storage maintenance

Valve can be stored in any masking area, but must pay attention to prevent valves are dirty mud or foundation. In at the time of shipment, the valve inlet and outlet are with protection cover. Note before installing the valve, don't to remove the protection cover. Ready to install the valve, the first will protect the end cover, and then check whether connection parts clean. For welding the parts need to clean them with a suitable solution, such as acetone or alcohol. Don't use contain fluoride and chloride solution.

Installation and maintenance

1. Before installation, must carefully check whether mark and nameplate of valve is consistent with working condition requirements.

(2) hａnd wheel, lever operation of pipe cut-off valve can be installed in any position.

3. The handwheel, handle and wei mechanism, does not allow for lifting.

4. The flow of medium should be consistent with the direction arrow shown in the body.