China Non-Rising Stem Gate Valve Manufacturers, Suppliers and Factory

Your Professional Non-Rising Stem Gate Valve Supplier

TIANJIN XTD VALVE CO., LTD. is a professional manufacturer of various valves, including butterfly valves, gate valves, filters, ball valves, globe valves, and more.

Unlike ordinary valve manufacturers, XTD VALVE owns its own rubber factory and valve stem processing facility, allowing for greater control over quality and production efficiency.

Non Rising Valve
The non-rising stem gate valve features carbon steel or stainless steel body with built-in stem nut design, offering compact structure ideal for underground pipelines or space-constrained
Gate Valve Non Rising
The stainless steel non-rising stem resilient seat gate valve features a 304/316 stainless steel body with fully enclosed stem design, optimized for space-constrained piping systems. Ideal for

Why choose us

Our Certificates
Our products have passed ISO 9001 certification. We have also been recognized as a high-tech enterprise, received an AAA credit rating certificate, and hold multiple patents.

Production & Market
Since its establishment, TIANJIN XTD VALVE CO., LTD. has gained strong domestic sales due to its excellent quality and solid reputation.While maintaining a firm foothold in the domestic market, the company actively explores international markets by participating in global exhibitions, showcasing product advantages, and establishing relationships with customers worldwide. Our products are exported to multiple countries and regions, including Indonesia and other international destinations.

Our Services
From CAD drawings to delivery – We provide seamless service:
● 1-on-1 Engineering Support with over 30 years of expertise
● 15-Day Fast Delivery for standard valves
● Custom Solutions at no additional cost

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Material Specification

Name parts

Driving cap

Dust cover

O-ring

Bonnet

Body

Hand wheel

Shaft cover

Thrust bearing

Bolt

Valve stem

Copper nut

Disc

Material

GG25

NBR

GG25

BRONZE

SUS410

Bronze

GG25 coated with EPDM or NBR

DN (mm)

Nominal diameter

PN (MPa)

Nominal pressure

Working temperature

Sealing pressure

Valve body stress

Applicable medium

DN50-400mm

1.0/1.6/2.5MPa

0-80℃

1.1 times the nominal pressure

1.5 times the nominal pressure

Water, oil, gas

DN (mm) Nominal diameter	D1		D2		N-Ød		L	H
	1.0MPa	1.6MPa	1.0MPa	1.6MPa	1.0MPa	1.6MPa
50	135		125		4-19		178	340
65	185		145		4-19		190	370
80	200		160		8-19		203	410
100	220		180		8-19		229	450
125	250		210		8-19		254	180
150	285		240		8-23		267	550
200	340		295		8-23	12-23	292	630
250	405		350	355	12-23	12-28	330	750
300	460		400	410	12-23	12-28	356	820
350	520		460	470	16-23	16-28	381	980
400	580		515	525	16-28	16-31	406	1010

Technical Parameters

Size	DN32-DN600	DN650-DN2000
Working pressure	16Bar	10Bar
Shell	24Bar	15Bar
Seal	18Bar	11Bar
Operating Temperature	-45°C~+150°C
Operating Environment	Ballast and bilge system Chemical processing Desalination plants Drilling rigs Drinking water Dry powder Food and beverage Gas plants HAVC Mining industry Paper industry Sand handling Seawater Sugar industry Thermo technical water treatment Waste water
Driving Method	Hand Lever Worm Gear Electric Pneumatic

Executive Standards

Design Standard	EN 593, MSS SP67, API 609, BS 5155
Inspection & Test	API 598, ISO 5208, EN 12266
End Standard	ANSI B16.1 CL. 125LB & B16.5 CL. 150LB
	AS 2129 Table D & E
	BS 10 Table D & E
	DIN 2501 (PN6, PN10, PN16)
	EN 1092 (PN6, PN10, PN16)
	ISO 2531 (PN6, PN10, PN16), 7005 (PN6, PN10, PN16)
	KS B / JIS B 1511 / 2210 (5K & 10K)
	MSS SP44 CL. 150LB
	AWWA C207
	SABS 1123 Table 1000/3 & Table 1600/3
Face to Face	ISO 5752, EN 558, MSS SP67, API 609, DIN 3202
Top Flange	ISO 5211

Non-Rising Stem Gate Valve

A rising stem gate valve is a type of gate valve that features a stem that rises vertically as the gate is lifted to open or close the flow. This movement provides a clear visual indicator of the valve’s position, which is crucial for ensuring proper flow control and safety in various industrial applications.

● The difference in transmission mode. The transmission mode of the Rising stem gate valve is that the handwheel drives the nut to rotate in place, and the valve stem is linearly raised and lowered. Through the threaded transmission of the valve stem and the steering wheel, the valve disc rises and falls to complete the switch; the Non-rising stem gate valve is a hand wheel drives the valve stem to rotate. The hand wheel and the valve stem are connected together and relatively immovable. There are threads in the gate, and the valve stem rotates at a fixed point to drive the gate to rise and fall.

● The difference in structure. The structure of the rising stem gate valve is that the stem nut is on the bonnet or bracket. When the gate is opened and closed, the stem nut is rotated to realize the lifting of the stem. The structure of the concealed stem gate valve is that the stem nut is in the valve body and is in direct contact with the medium; when opening and closing the gate, it is realized by rotating the stem.

● The difference in installation space. The rising stem gate valve requires a larger installation space because of the stem; the height of the Non-rising stem gate valve is small, and it will not take up too much space during installation.

● The difference in application scope. The structure of the rising stem gate valve is beneficial to the lubrication of the stem, and the degree of opening and closing is obvious; the stem thread of the Non-rising stem gate valve is not only unable to be lubricated, but it is directly corroded by the medium and is easily damaged. Therefore, the open stem gate valve is more The Non-rising stem gate valve has a wider range of applications.

Comparison Table: Rising vs Non-Rising Stem Gate Valve

Feature	Rising Stem	Non-Rising Stem
Visual Position Indication	Yes	No
Installation Space	Requires more vertical space	Space-saving
Stem Exposure	External threads	Internal threads
Maintenance	Easier inspection	More difficult due to internal components
Ideal For	Above-ground	Underground or tight areas

How Does a Rising Stem Gate Valve Work

The handwheel rotates, driving the stem and gate upward, creating an unobstructed flow path.
The valve fully opens when the stem reaches its highest position, ensuring minimal pressure drop.
External threads allow easy lubrication, reducing friction and wear over time.
Commonly used in industrial applications requiring regular inspection and maintenance.

Rising Stem Gate Valve Parts

Handwheel (operates the valve)

Stem (visible, moving up/down)

Bonnet (houses the stem and provides sealing)

Valve body (main casing for fluid flow)

Gate (disc that moves to control flow)

External threads (for easier maintenance and reduced friction)

FAQ

Q: Are you manufacture or trade company?

A: We are a manufacturer factory and we also have our own exporting license.

Q: Can I get free samples?

A: Yes, we can provide you the free samples, but you need to bear their own delivery costs.

Q: Can I have my own Logo on the product?

A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.

Q: Can you produce the products according to my own drawings?

A: Yes, we can produce the products according to your drawings that will be most satisfy you.

Q: Can I request to change the form of packaging and transportation?

A: Sure, we're glad to fulfill your requirement. Yet please understand that extra costs may occur if the form of packaging and transportation are changed.

Q: Why trust in us ?

A: More than 20 years in this industry . It makes us professional .Good credit in this market. All of our machines are the assurance of our responsibility.

We're well-known as one of the leading non-rising stem gate valve manufacturers and suppliers in China. Please feel free to buy high quality non-rising stem gate valve at competitive price from our factory. For more information, contact us now.

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