PZ973H electric knife type gate valve

NegotiableUpdate on 04/25

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

PZ973H electric knife type gate valve, electrically driven, clamp type connection, rising stem parallel rigid single gate valve, Z973F valve seat sealing surface material is fluoroplastic, Z973H valve seat sealing surface material is stainless steel, nominal pressure PN6-16, valve body material is carbon steel gate valve.

Product Details

Electric knife type gate valvePZ973H/F/Y/X

【Product Description】

PZ973H electric knife type gate valveElectric drive, clamp type connection, open rod parallel rigid single gate,Z973F valve seat sealing surface material is fluoroplastic, Z973H valve seat sealing surface material is stainless steel, nominal pressure PN6-16, valve body material is carbon steel gate valve.

Equipped with a multi turn electric device, the valve plate can move in a straight line up and down, and can be remotely controlled to open or close the valve. Diameter range:DN50~DN500， The operating temperature is ≤ 100 ℃, widely used in drainage, heating, power plants, chemical, food, papermaking, pharmaceuticals, coal, mining and other engineering projects.

【Product performance parameters】

Main performance parameters of Z973F and Z973H electric knife gate valves (knife gate valves)
model	PN	work pressure/ MPa	Applicable Temperature/ ℃	Applicable Medium
Z973F-6C	6	0.6	≤ 100	Ash residue, etc
Z973H-6C
Z973F-10C	10	1.0
Z973H-10C
Z973F-16C	16	1.6
Z973H-16C

【Product component materials】

Z973F, Z973H electric knife gate valve (knife gate valve) component materials
model	material
model	valve body	ram	sealing surface	valve stem	filler
Z973F-6C	carbon steel	Chromium nickel titanium stainless steel	fluoroplastic	Chromium stainless steel	asbestos
Z973H-6C			Inlaid or spray welded iron-based alloys
Z973F-10C			fluoroplastic
Z973H-10C			Inlaid or spray welded iron-based alloys
Z973F-16C			fluoroplastic
Z973H-16C			Inlaid or spray welded iron-based alloys

【Product appearance and structural dimensions (PN6)】

Z973F, Z973H (PN6) electric knife gate valve (knife gate valve) appearance and structural dimensions (mm)
DN	L	D1	D2	z×ød	H	DENSO model number	weight/ kg
50	50	90	110	4x12	370	DZ10	52
65	50	110	130	4x12	460	DZ10	53
80	50	125	150	4x16	590	DZ10	55
100	50	145	170	4x16	780	DZ10	57
150	60	200	225	eight by 16	980	DZ10	71
200	60	255	280	eight by 16	1053	DZ15	81
250	70	310	335	12x116	1060	DZ20	100
300	80	362	395	12x120	1230	DZ20	123
350	90	412	445	12x120	1250	DZ30	148
400	100	462	498	16x120	1770	DZ30	158
450	120	518	550	16x120	1920	DZ45	225
500	130	568	600	16x120	2010	DZ45	240

Installation and commissioning method of electric gate valve:

1. Electric gate valves can be installed on horizontal or vertical pipelines. Single and double gate gate valves should be installed on horizontal pipelines, and the handwheel should be located above the valve, and downward installation is not allowed. The flow direction of the medium in the gate valve is not restricted.

2. 2. Electric gate valves are usually connected by flanges, and welding connections are also used in special occasions.

3. For large-diameter and high-pressure gate valves, the opening and closing torque is relatively large. To reduce the opening and closing torque, a bypass valve can be installed. The bypass valve is installed outside the main gate valve, and its inlet and outlet are connected in parallel with both sides of the main gate valve. Before opening the main gate valve, the bypass valve should be opened first. After entering the valve, the pressure difference before and after the gate of the main gate valve should be reduced, thereby reducing the opening torque of the main gate valve. The selection of bypass valve diameter should be based on the main valve diameter and usage requirements.

4. 4. Electric gate valves are block valves with inferior sealing performance compared to globe valves. The main 'responsibility' of a gate valve is to 'cut off flow' and 'continue flow' with minimal resistance. It is not suitable for regulating the flow rate and pressure of the medium. If used for a long time, the sealing surface is easily eroded and worn by the medium, which affects the sealing performance.

5. 5. Attention should be paid to the reliability of the use of electric gate valves in terms of medium temperature and pressure. At high temperatures and pressures, changes in temperature may cause the gate to become stuck, and uneven temperature distribution of the medium can lead to unsealing. Wedge type but gate valve is particularly obvious.

6. 6. When powering on for the first time, attention should be paid to the phase sequence of the power supply. The correct operation method is to manually open the gate valve to the * * position, and then jog the switch valve to adjust the stroke of the valve (contact the manufacturer for specific adjustment methods) before it can operate normally.