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Gate Valve

Classification :

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PRODUCT DETAILS

Based on the configuration of the sealing surfaces, gate valves can be classified into wedge-type gate valves and parallel-type gate valves. Wedge-type gate valves are further subdivided into single-disc, double-disc, and elastic-disc types; parallel-type gate valves are subdivided into single-disc and double-disc types. Based on the position of the valve stem threads, they can be classified into rising-stem valves and non-rising-stem valves.
Working Principle:
The opening and closing component of a gate valve is the gate (or wedge), which moves perpendicularly to the direction of fluid flow. By rotating the handwheel, the valve stem is driven to rise or descend, thereby opening or closing the gate to cut off or allow the flow of media within the pipeline. Gate valves are designed to be either fully open or fully closed; they cannot be used for flow regulation or throttling purposes.
Performance Characteristics:

High Corrosion Resistance:Exhibits excellent chemical stability and can withstand a wide range of corrosive media, including strong acids, strong bases, and strong oxidizing agents.

Low Fluid Resistance:When the valve is fully open, the flow channel is linear, resulting in minimal pressure loss as the medium flows through. The direction of the medium flow is unrestricted, and there is no turbulence or significant pressure drop.

Excellent Sealing Performance:Capable of achieving a self-sealing effect through the application of medium pressure or external mechanical force. Some models also incorporate surface-seated or elastic sealing designs to ensure reliable sealing even under harsh operating conditions.

Labor-Saving Operation:Compared to certain other valve types, the opening and closing process requires significantly less physical effort. It can be equipped with various actuation methods—including manual, electric, and pneumatic drives—to facilitate more convenient operation.

Applications:Soft-sealed gate valves utilize the compensatory effect of slight elastic deformation in the gate (wedge) under pressure to achieve superior sealing performance. When in use, the working pressure of the medium should not exceed 1 MPa, and the temperature should not exceed 80°C. These valves are widely utilized across various industries—including construction, food processing, pharmaceuticals, chemicals, energy, and water supply/drainage systems—serving as shut-off or flow-isolation devices within pipelines and equipment.

Type	Nominal diameter DN (mm)	L (mm)	D(mm) - 10	D(mm) - 16	D1(mm) - 10	D1(mm) - 16	D2(mm) - 10	D2(mm) - 16	b(mm) - 10	b(mm) - 16	f (mm)	Z-Φd - 10	Z-Φd - 16
Z45X-10/16 Z45X-10Q/16Q	50	178	165	-	125	-	99	-	20	19	3	4-Φ18	-
	65	190	185	-	145	-	118	-	20	19	3	4-Φ18	-
	80	203	200	-	160	-	132	-	22	19	3	4-Φ18	8-Φ18
	100	229	220	-	180	-	156	-	24	19	3	8-Φ18	-
	125	254	250	-	210	-	184	-	26	19	3	8-Φ18	-
	150	267	285	-	240	-	211	-	26	19	3	8-Φ23	-
	200	294	340	-	295	-	266	-	26	20	3	8-Φ23	12-Φ23
	250	330	395	405	350	355	319	-	28	22	3	12-Φ23	12-Φ25
	300	356	445	460	400	410	370	-	28	24.5	4	12-Φ23	12-Φ25
	350	381	505	520	460	470	429	-	30	26.5	4	16-Φ25	16-Φ25
	400	406	565	580	515	525	480	-	32	28	4	16-Φ25	16-Φ30
	450	432	615	640	565	585	530	548	32	30	4	20-Φ25	20-Φ31
	500	457	670	715	620	650	582	609	34	31.5	4	20-Φ25	20-Φ34
	600	508	780	840	725	770	682	720	36	36	5	20-Φ30	20-Φ37
	700	610	895	910	840	840	794	794	32.5	39.5	5	24-Φ31	24-Φ37
	800	660	1015	1025	950	950	901	901	35	43	5	24-Φ34	24-Φ40

Main parts and materials：

Part name	Material
Valve body, bonnet	Ductile iron
Gate board	Ductile iron+PTFE
Valve stem	Stainless steel, carbon steel
Stem nut	Ductile iron

Function and specification：

Type	Nominal Pressure (MPa)	Test pressure - Strength (water) (MPa)	Test pressure - Sealed (water) (MPa)	Working Temperature ℃	Suitable Mediums
Z45X-10	1.0	1.5	1.1	≤80	Water
Z45X-16	1.6	2.4	1.8	≤80	Water

FACTORY WORKSHOP

While rooted in the Chinese market, Tianyu Casting has built an integrated marketing service system to serve global clients. Our experienced steel products team works in close partnership with major steel mills to ensure ample supply and competitive pricing. We also provide professional technical consultation to help customers make accurate and rational material selections.

APPLICATION FIELD

Has earned the trust of customers through high-quality products and refined services. Customer needs are at the core of what we do. We continuously strive for excellence and are dedicated to providing superior steel products and services, ensuring an optimal experience that meets and exceeds our customers' expectations.

CUSTOMER VISIT

Customer Visit

CERTIFICATES

ISO 9001

Factory Approval Certificate

Hardware Quality System Certification

Occupational Health and Safety Management System

FAQ

Q:Once the products received by customer were found not comply with the products or contract demands, what will you do?

A:Our goods have passed QC inspection before export and provide regular MTC for customer review. In case of quality disputes, the customer shall inform the supplier within 7 working days after receiving the goods and arrange the international third party to carry out inspection and send the damage report to the supplier. Once confirmed by our company, our company unconditionally reissue or return shipping refund！

Q：How about the payment terms?

A:We accept a variety of payment terms, but there are specific restrictions: 1.Amount less than Fifty thousand dollars,we only accept TT payment; 2.Amount from $50,000 to $300,000,we accept TT deposit and balance by LC at sight; 3.Amount more than $300,000,we can do LC 180 days upon little down payment. Finally, we can provide OA service for our frequent customer cooperation and who have a good reputation & professional in their local market.

Q:Whether to accept inspection company and factory？

A：Whether you choose to work with us or not. We accept different customers personally or commissioned third parties to audit factory and company.And hereby promise not to charge any inspection fee or guarantee deposit in advance.

Q:How to ensure that the quantity and material delivered meet customer requirements?

A:We will take a video of each package of goods and record the pieces/weight of the goods. And material inspection through PMI.And assure all customers that if the quantity or material of the goods you receive does not match the order and send the exact evidence. Our company will fine you ten for one fake

Q:What is the delivery time?

A:Depends on whether the goods are in stock and the quantity. Stock Materials: Generally 7-10 days to complete the cutting and packaging and shipment; Customized Materials:About 20-30days for production and arrange the shipment.

Q：What is your MOQ?

A:All the materials at least for 2tons,but the price it’s relatively expensive. Up to 50 tons, a maximum discount of 5% is offered; 50 tons to 200 tons,can provide discount 5%-10%; More than 200tons can get discount 10%-20%. The larger the tonnage, the greater discount we can offer. Every Chinese and foreign holidays, our company has a lot of different strong discounts, welcome to pay attention to the company news consultation.