Butt Welded Forged Steel Gate Valve

Introduction
Forged steel butt weld end gate valve is a kind of most common open/close valve. It is mainly composed of valve body, disc, bonnet, valve gland, gasket, bolt and nut. This forged steel gate valve uses disc to connect or cut off medium in pipeline. Disc functions like a sluice gate to connect or cut off media, so it is called gate valve or sluice valve. The on-off component of gate valve is valve disc. The movement direction of disc is perpendicular to the flowing direction of fluid. Gate valve can only be opened or closed fully. Butt weld end gate valve can be widely applied as fluid regulating and intercepting equipment in various pipelines, such as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and energy pipeline systems.

Classification
Forged steel threaded gate valve can be widely applied as fluid regulating and intercepting equipment in various pipelines, such as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and energy pipeline systems.

Advantages of Forged Steel Butt Weld End Gate Valve
1. Sealing materials we applied to manufacturer forged steel gate valve are wear resistant.
2. Valve seat is replaceable, which makes maintenance more simple and convenient.
3. Twice shot blasting processing makes the forged steel valve look fine and smooth.
4. Numerical control processing is utilized on valve disc.
5. Valve body adopts precision casting technique.
6. Small torsion is needed to open butt weld end gate valve.
7. Lifelong technology service is provided for all our products.
8. Guarantee period of our products is 18 months.

Pressure: CLASS900~2500 PN16.0~42.0
1. Welded Bonnet/Pressure Sealed Bonnet
2. Reduced Port
3. Solid Wedge Gate
4. Flange Ends/Butt-Welding Ends

Technical Specification of Forged Steel Gate Valve

Technical Specification	ASME/API	GB/JB
Design Standard	ASME B16.34/API600	GB/T12234 GB/T12224
Pressure-Temperature Rating	ASME B16.34	GB/T12224
Face-Face	ASME B16.10	GB/T12221 JB/T97-95
Flange Ends	ASME B16.5	GB/T9113JB/T82.1~82.4
Buttwelding Ends	ASME B16.25	GB/T12224
Inspection & Test	API598	JB/T9092

Material List for Main Parts of Butt Weld End Gate Valve

No.	Part Name	ASTM
		Carbon Steel		Tailess Steel	Alloy Steel
1	Body	A105	LF2/LF3	A182 F304	A182 F11/F22
2	Seat	A182F6a	A182F6a	A182 F304	A182 F11/F22
3	Wedge	A182F6a	A182F6a	A182 F304	A182F6a
4	Stem	A276-410	A276-410	A276-304	A276-410
5	Gasket	Graphite+304
6	Sealing Ring	Graphite
7	Yoke	A216-WCB	A216-WCB	A351 CF8	A216-WCB
8	Bonnet	A105	LF2/LF3	A182 F304	A182 F11/F22
9	Bolt	A193 B7	A320L7	A193 B8	A193 B16
10	Packing	Graphite
11	Stem Bushing	A276-410	A276-410	A276-304	A276-410
12	Gland	A216-WCB	A216-WCB	A351 CF8	A216-WCB
13	Eye Blot	A193 B7	A320 L7	A193 B8	A193 B7
14	Stem Nut	A276-410
15	Hand Wheel	A197 or A47-32510

Main Dimensions & Weight

Pressure	Size		Main Dimension of Butt Weld End Gate Valve							Weight(kg)
	mm	in.	d	LRF	LBW	LRTJ	H		W
							WB	PB		WB	PB
CLASS900 PN16.0	15	1/2	10	216	216	216	197	321	180	9.8	11.5
	20	3/4	13	229	229	229	211	321	180	9.7	11.2
	25	1	19	254	254	254	238	321	180	9.5	10.8
	32	1-1/4	24	279	279	279	257	380	200	17.5	18
	40	1-1/2	40	305	305	305	276	414	200	21.6	22
	50	2	50	368	368	371	320	502	300	42.7	44
CLASS1500 PN26.0	15	1/2	10	216	216	216	197	321	180	9.8	11.5
	20	3/4	13	229	229	229	211	321	180	9.7	11.2
	25	1	19	254	254	254	238	321	180	9.5	10.8
	32	1-1/4	24	279	279	279	257	380	200	17.5	18
	40	1-1/2	40	305	305	305	276	414	200	21.6	22
	50	2	50	368	368	371	320	502	300	42.7	44
CLASS2500 PN42.0	15	1/2	10	264	264	264	197	321	180	12.3	13
	20	3/4	13	273	273	273	211	321	180	12.1	12.7
	25	1	19	308	308	308	238	321	180	11.8	12.5
	32	1-1/4	24	349	349	352.2	257	380	200	20.9	21.8
	40	1-1/2	40	384	384	387.2	276	414	200	27.5	29.3
	50	2	50	451	451	454.2	320	502	300	53.3	55.4

Note: H means the height when valve is fully opened.

Maintenance of Butt Weld End Gate Valve
1. Hand wheel, handle and transmission mechanism are not allowed for lifting things. Collision of them is strictly prohibited.
2. Please open the bypass valve in advance before opening the valve to balance the pressure differential and to decrease opening force.
3. If the valve opens and closes frequently, please lubricate it regularly (at least one time every month).
4. The valve for long-term storage should be checked regularly. The surface of the valve must be clear of dirt and coated with anti-rust oil.

Payment, Package and Delivery
1. Products can be paid by T/T, D/P, D/A, L/C or according to your requirement.
2. Forged steel butt weld end gate valves are packaged by standard exported wooden cases.
3. Our forged steel gate valves are transported by sea, railway or air.

Wenzhou Kerui Valve Industry Co., LTD a professional manufacturer of forged steel gate valves in China. Our main products include ball valves, gate valves, globe valves, check valves, strainers and forged steel valves. Our butt weld gate valves are exported to Brazil, Argentina, Mexico, Canada, Russia, Kazakhstan, Indonesia, South Korea, Japan, Australia, Bulgaria, Spain, France, England, Sweden, Dubai, Arab, Pakistan, South Africa, etc.