Instrument Parts & Accessories

Support sample making, sample customization, large-scale machining factory, advanced technology, uniform, no scratches, smooth surface, no convex points, no abnormal corners

Support sample making, sample customization, large-scale machining factory, advanced technology, uniform, no scratches, smooth surface, no convex points, no abnormal corners

Quickly customize mold processing solutions and mold drawings according to drawings, with advanced technology, preferential prices, high precision, suitable for batch product mold opening in various industries

Precision Ruby Ball for needles high precision probe ruby balls High-precision ruby ball size D 1.0mm-5.0mm Accuracy: +-0.005mm We can also customize the Probes

Minimum Order: 1000

Ruby Balls with drilled hole, blind hole ruby ball probe in high-precision size D 1.0 mm - 5.0 mm Accuracy: +-0.005mm We can also customize the Probes with samples or drawings We specialize in super-hard material parts and high-precision hole components.

Minimum Order: 1000

Due to the tariff war initiated by the Trump administration, all of our American customers have ceased inquiries, orders, production, and shipments, resulting in orders being put on hold. The customers stated that they are not planning to cancel the orders, but rather to pause for a while, hoping that the situation can change and wait for a better solution before shipping. AAK has been committed to producing and exporting high-quality hydraulic threaded screw-in cartridge valves that benchmark international first-line brands. Europe and America are our main markets, with the United States accounting for over 50% of AAK's export value. The tariff war has a significant impact on Chinese hydraulic cartridge valve manufacturer AAK. Fortunately, AAK has accumulated over 15 years of experience in the foreign trade export industry, and its customers in countries other than the United States, especially Russia and India, are increasing year by year. After Western brands withdrew from the Russian market, Chinese mechanical components filled the gap. The performance in the field of construction machinery is particularly outstanding, with Chinese brands' market share in Russia jumping from 43% in 2023 to 66% in 2024. As a core component of construction machinery, the export share of hydraulic threaded screw-in cartridge valves has grown synchronously. China's exports of construction machinery products (including supporting components) to India will maintain double-digit growth in 2025, especially in categories such as cranes and excavators. Chinese brands will quickly replace European and American products through their cost-effectiveness advantages. The demand for hydraulic threaded screw-in cartridge valves as core transmission components is increasing synchronously. We have also received multiple trial orders from new customers in Russia and India recently. It is within reach to turn these new customers into long-term repeat customers with AAK's excellent quality and high-quality service. No matter how policies and international situations change, AAK's good quality, good price, and good service will always be the first pursuit of customers. Although Chinese hydraulic cartridge valve manufacturer AAK has temporarily encountered some obstacles in the US market, its core advantages are universal and popular in any country. In the long run, we believe that our overall development will not be affected, and may even be better. AAK HYDRAULIC VALVES (846) 2025-04-23

Minimum Order: 1 bags

2 months ago in early February, AAK customized a PV72-30AM Proportional Valve Assembly for a European customer. The valve assembly includes a HydraForce solenoid operated, pressure compensated, spool type, normally closed, proportional priority flow control valve PV72-30AM-0-N-12DG, and a HydraForce CV08 series Check Valve, assembled to an aluminum block. This is just very similar to a valve and block assembly that we shipped to a customer in Russia before, and we finished it in 15 days and a/f’d it to customer by end February. 2 weeks ago in early April, we received email from customer that they are happy with test result and are willing to place order for another batch – part of them to be shipped by air and remaining to be shipped by railway or sea. This batch is now in production and will be ready by end April. PV72-30 proportional valve is one of our best sellers and is usually in stock shortage. Last week, we just shipped a test order to a customer in Belarus. There are several hydraulic cartridge valve manufacturers in Ningbo China who can offer PV72-30 model, but AAK is the top choice in combining the price, quality, fast delivery and efficient customizing service. If you are also in need of this model, do not hesitate to contact us. You will not be disappointed. AAK HYDRAULIC VALVES (845) 2025-04-15

Minimum Order: 1 bags

Chinese Hydraulic Screw-in Cartridge valve manufacturer AAK often receives various questions from overseas customers, some of which even come from college students conducting academic research. Today, we will once again introduce the main materials used for seals in hydraulic screw-in cartridge valves, as well as their respective characteristics: 1. Rubber Sealing Materials 1) Nitrile rubber (NBR) - Excellent oil resistance, suitable for conventional hydraulic oil environments, with a working temperature range of -40 ℃ to+120 ℃. - Mainly used in static sealing scenarios, such as O-rings and some combination seals 2) Fluororubber (FKM) - High temperature resistance (up to 200 ℃), chemical corrosion resistance, suitable for hydraulic oil containing phosphate esters or highly corrosive media. - Commonly used in high-pressure systems or extreme temperature environments. 3) Silicone rubber (VMQ) - Outstanding cold resistance (-70 ℃ to+200 ℃), but low mechanical strength, only suitable for static sealing 2. Polymer Sealing Materials 1) Polytetrafluoroethylene (PTFE) - Extremely low friction coefficient, good self-lubricating properties, strong corrosion resistance, suitable for high-speed or chemically corrosive environments. - Often used as a filling material in conjunction with rubber, or in combination with seals (such as Glay rings, seals). 2) Polyurethane (PU) - High wear resistance and anti extrusion strength, suitable for high- pressure reciprocating motion seals (such as Y-shaped rings, U-shaped rings), working temperature -30 ℃ to+100 ℃. 3) Nylon (PA) - Oil resistant and wear-resistant, used for non direct sealing components such as guide rings and support rings, with a working temperature of -40 ℃ to+120 ℃. 3. Metal Sealing Materials Stainless steel/copper alloy - Used for extreme high pressure (>32MPa) or high temperature (>450 ℃) scenarios, achieving metal to metal sealing through precision machining. 4. Composite Sealing Materials Clip on rubber+rubber (lace ring) or PTFE+rubber (Glay ring/Steller seal) - Combining the elasticity of rubber with the wear resistance of PTFE/sandwich material, suitable for high-pressure dynamic sealing (such as valve spool and valve cage). Selection Suggestions - Normal working conditions: Priority should be given to using nitrile rubber or polyurethane. - High temperature/corrosive environment: Fluorine rubber or PTFE composite materials are better. - Ultra high pressure scenario: requires metal seals or combined sealing structures. AAK HYDRAULIC VALVES (844) 2025-03-17

Minimum Order: 1 bags

For each hydraulic Screw-in cartridge valve, hydraulic cartridge valve manufacturer AAK conducts very strict quality inspections from raw materials to shipment, and the inspection processes is roughly as follows: 1. Raw material inspection The raw material manufacturer provides material analysis reports to hydraulic cartridge valve manufacturer AAK, and AAK regularly entrusts third-party organizations to conduct material analysis. 2. Inspection of purchased finished products outside For some components that hydraulic cartridge valve manufacturer AAK purchased outside, such as the coils, O-Rings, TPE back-up rings etc, the component manufacturer provides material reports and inspection reports to AAK, and AAK conducts size sampling before storage. 3. Self made semi-finished product inspection For each component that is produced in our own factory, hydraulic cartridge valve manufacturer AAK inspects the full size of the first piece, then run into mass production. During production, process full-size inspection; After production, process full-size inspection according to proportion randomly. 4. Inspection after heat treatment Key dimensions are randomly inspected, and the outsourced heat treatment manufacturer provides hydraulic cartridge valve manufacturer AAK a metallographic analysis report. AAK conducts metallographic analysis on each batch of outsourced heat treatment materials through sampling in a third party. 5. Inspection of self-made finished products Full inspection of precision machining dimensions, grinding and matching. 6. Assembly inspection Random inspection 7. Finished product testing before shipping All products must pass 100% performance testing before being stored or shipped. 8. Delivery inspection Fully inspected shipped materials consistent with the order requirements. 9. Fatigue Test Each product is scheduled to undergo durability testing, record and track relevant data, and mass produce after passing the inspection. AAK HYDRAULIC VALVES (843) 2025-03-11

Minimum Order: 1 bags

Product Description GGG50 flange gate valve have strong flow ability, convenient installation, simple operation, compact structure. Has high sealing performance, are widely used in city water supply and drainage pipeline, is an important part of all kinds of water distribution system and fire control system. Design of a simple and compact structure, convenient operation, easy assembly and disassembly, easy repair. Reasonable design, large circulation area, the path smooth transition, no dirt accumulation phenomenon, small flow resistance. Zero leakage sealing, elasticity, long service life. Inside and outside the bs5163 resilient seated gate valve spraying epoxy resin coating, coated with rubber, no pollution medium. Small operation torque, easy opening and closing. Company Profile Tianjin Tanggu watts Valve Co., Ltd. was founded in 1956, Located in Binhai New District, Tianjin city , 9 km from Tianjin Port,is a collection development, production, sales, after sale service in one integrated company, the total registered capital of 140000000 yuan, covers an area of 100 acres, has 35000 square meters factory, design, manufacturing and testing center has a modern, butterfly valve, gate valve, globe production valve, ball valve, check valve, hydraulic control valves and other valves. As a more than 60 years China industrial valves manufacturer, it has been engaged in the development and manufacture of industrial water valve industry pioneer, Watts product to create a superior performance to the drainage, sewage and waste water treatment, desalination, metallurgy, papermaking, chemical, pharmaceutical, heating, petroleum, construction, electric power, shipbuilding and other fields in the city, has for the Shanghai Qingcaosha, Three Gorges Left Bank Power Station in Chengdu, the new sewage treatment plant, Sinopec Yangzi – BASF, the south to North Water Diversion Project and other major projects at home and abroad to provide complete sets of water valve products.

Minimum Order: 10 long tons

Product Description The Z45X series elastic sealing rod gate valve can be operated in both manual and automatic modes, depending on the user’s needs and application scenarios. • DIN3202f4 gate valves are usually equipped with a handwheel or handle that is manually rotated to open or close the valve. • The automatically operated Z45X series valves are usually equipped with electric actuators or pneumatic actuators, which are driven by electricity or pneumatic pressure to achieve remote control and automated operation. Technical Standard The products are manufactured in the China industrial valves manufacturer with GB/T24924-2010/ANSI/AWWA C509-94 or BS 5163 standards. The test conforms to GB/T13927 or BS 5163 standards. The side flange connection conforms to the provisions of GB/17241.6, PN1.6MPa or EN 1092 in the standard “PN1.0MPa”. Valve length of the structure in line with the GB/T12221 standard gate valve structure length short series, and at the same time in line with the ANSI B16.10 “valve structure length” in the 125 pound class standard, or BS 5163 standards. DN65 (2 / “)” ~ (12) “side flange connection dimensions can be in accordance with ANSI/ASME B16.1” cast iron pipe flanges and flanged fittings “in the 125 pound class standard requirements. Features and advantages Casting body, with sufficient strength to meet the requirements of the working environment, fluid flow will not be hindered. Elastic wedge, can automatically adapt to the pipe stress caused by the deformation of the valve body. The welded seat ring is sealed to prevent leakage. Stem: T – disc – stem connection to prevent stress applied to the side of the stem to ensure smooth operation. Packing: packing containing preservatives, avoid rust stem. Deep stuffing box ensures long service life of packing. Seat ring: the bs5163 gate valve pn16 seat is sealed and welded, which can eliminate the leakage channel and prolong the service life.

Minimum Order: 10 long tons

What is Stainless Steel Gate Valve？ A stainless steel gate valve is a type of valve that uses a gate mechanism to control the flow of fluids. It is constructed primarily with stainless steel materials, which offer excellent corrosion resistance and durability. DIN3202f4 gate valve features a sliding gate or wedge that can be raised or lowered to allow or block the flow of liquid or gas through the bs5163 gate valve pn16. Features and advantages At TWT, a China industrial valves manufacturer, you can receive qualified products. Casting body, with sufficient strength to meet the requirements of the working environment, fluid flow will not be hindered. Elastic wedge, can automatically adapt to the pipe stress caused by the deformation of the valve body. The welded seat ring is sealed to prevent leakage. Stem: T – disc – stem connections to prevent stress applied to the side of the stem to ensure smooth and easy operation. Packing: packing containing preservatives, avoid rust stem. Deep stuffing box ensures long service life of packing. Seat ring: the valve seat is sealed and welded, which can eliminate the leakage channel and prolong the service life.

Minimum Order: 10 long tons

Technical Standard ·Product manufacturing complies with GB/T24924-2010/ANSI/AWWA C509-94 or BS 5163 standards. ·The test meets the standard requirements of GB/T13927 or BS5163 resilient seated gate valve. ·The valve structure length meets the requirements of the short resilient seated gate valve structure length series in the GB/T12221 standard, and at the same time meets the 125-pound standard in ANSI B16.10 “Valve Structure Length”, or the BS 5163 standard. Features and advantages ·The double eccentric structure design avoids the abrasion of the sealing connection surface and maintains the integrity and long service life of the seal. ·The wide-angle valve seat design avoids the squeeze damage caused by the tight contact between the valve seat and the valve disc. It provides a longer service life. ·The two-stage high-strength valve stem structure ensures convenient maintenance. The double eccentric structure makes online maintenance of the valve seat and disc easier and faster. ·The streamlined spherical disc has a high flow coefficient. ·The din3202f4 gate valve sizes range from DN50 to DN250, offering a comprehensive selection to meet diverse industrial needs with precision and reliability. ·Internal valve stem/disc drive, avoiding pin or bolt installation that may cause more leakage paths. ·The flexible fixing ring provides compensating valve seat sealing pressure on the valve disc. It is not only simple in structure and light in weight, but also small in driving torque. It is easy and fast to operate, and has good flow regulation and closing and sealing characteristics. ·TWT Company is a China industrial valves manufacturer of resilient seated gate valves, renowned for its superior quality and innovative engineering. TWT gate valve offers bs5163 gate valve PN16, and bs5163 resilient seated gate valve products, welcome to buy bs5163 related gate valve products. ·Stem seal is made of high-efficiency PTFE.

Minimum Order: 10 long tons

As a China industrial valves manufacturer, TWT introduces Steel Gate Valve Series to you: The Steel Gate Valve Series offers a robust and reliable solution for controlling the flow of fluids in industrial applications. Crafted from high-quality steel materials, these DIN3202F5 gate valves are designed to withstand high pressures, temperatures, and corrosive environments, ensuring long-term performance and durability. Features and advantages Casting body, with sufficient strength to meet the requirements of the working environment, fluid flow will not be hindered. An elastic wedge can automatically adapt to the pipe stress caused by the deformation of the valve body. The bs5163 gate valve pn16 is available in various sizes, pressure ratings, and end connections to suit different piping systems and application requirements. The welded seat ring is sealed to prevent leakage. Stem: T–disc–stem connection to prevent stress applied to the side of the stem to ensure smooth operation. Packing: Packing contains preservatives; avoid rust stems. A deep stuffing box ensures a long service life for packing. Seat ring: the valve seat is sealed and welded, which can eliminate the leakage channel and prolong the service life.

Minimum Order: 10 long tons