LOV MACHINARY
LOV was established in 1999 as a professional valve manufacturer in the region of Suzhou, China. LOV specialize in developing and producing Ball / Gate / Globe / Check valves, high performance butterfly valves and special design valves with special materials. We strive to provide the best solutions to the oil & gas industry and served the global users over 20 years.
Our advanced CAD/CAM production mode and flexible production process are able to undertake not only the small batch order, but also large quantities for engineering projects.
Design & Engineering
Design & Engineering
Design & Engineering
The in-house R&D and engineering department can support the fast production of valves. Using solid modeling 3D software to design the valves and Computerized Fluid Design software to calculate strength and flow as well as temperature and pressure influences customers can be confident with LOV. The high level of know-how about valves both practically and technically enables LOV to come up with a solution for almost every challenge.
It’s our aim to get general arrangement drawings for approval to our customers within one week after order placement. The strength of LOV is the ability to listen and work closely with customers to provide solutions to process problems.
Production
Design & Engineering
Design & Engineering
Our manufacturing philosophy is to ensure stable quality and just in time delivery. We have an advanced machining shop. All parts are produced in-house to ensure quality consistency by means of state-of-the-art CNC machining cells, experienced operation team.
The high level of automation throughout the organization helps us to serve the most demanding industries in the world in a very flexible, high quality and efficient manner. We also stock a large quantity valve parts to serve urgent delivery jobs and in advance warranty service.
Certification
Design & Engineering
18 Months Warannty
We have successfully obtained certifications as follows: TSG Class A1, ISO9001:2015 (Lloyds), EU/CE (Lloyds), API 6D,API 609, API 607/6FA, PAT/TAT Certs and ect. LOV Machinary develp safety protocols that comply with industry standards.
18 Months Warannty
Floating Ball Valve
18 Months Warannty
At LOV Machinery, we do business the right way and committed to produce and stocking the highest quality products. We stand behind every product we sell and are pleased to offer an 18 month warranty on all materials and workmanship.
LOV will replace without charge or refund the purchase price of products provided by seller which prove to be defective in material or workmanship, provided in each case that the product is properly installed and is used in the service for which seller recommends it and that written claim, specifying the alleged defect, is presented to the seller within 18 months for the date of shipment or 12 months after installation, whichever occurs first. Seller shall in no event bear any labor, equipment, engineering or other costs incurred in connection with repair of replacement. The warranty stated in this paragraph is in lieu of all other warranties, either expressed or implied. With respect to warranties, this paragraph states Buyer’s exclusive remedy and seller’s exclusive liability.
Floating Ball Valve
Floating Ball Valve
Floating Ball Valve
LOV forged steel floating ball valves are designed in accordance with ISO17292 featuring 2 pc split body or 3 pc split body, ideal for medium or high pressure services and wide temperature range (-196℃~ 500℃) . It can substitute the small size trunnion mounted ball valves to save cost. LOV full range of forged steel floating ball valves is fire safe test certified by Llody’s Register per API607 and API6FA.
Design Feature
Full port or reduce port, Fire safe structure, Blowout-proof stem, Anti-static, Low emission control, Optional locking device, ISO 5211
top flange.
Trunion Ball Valve
Floating Ball Valve
Floating Ball Valve
LOV trunnion mounted ball valves are designed in accordance with API6D featuring 2 pc or 3 pc split body side entry or top entry design. Wide range of sealing material including PTFE, Peek, Devlon, Nylon etc, valve can be used in working temperature range -46℃~ 500℃. This series of valves are optional designed with Double block a nd bleed or double piston type. All valves are equipped with sealant injection system for both stem and seats to allow external intervention to prevent seat or stem leakage. The top entry ball valve can be used for in-line maintenance services. Neway full range of trunnion mounted ball valves is fire safe test certified by Llody’s Register per API607 and API6FA.
Design Feature
Full port or reduce port, Fire safe structure, Double block & bleed, Emergency sealant injection, Cavity pressure self relief, Blowout-proof stem, Anti-static, Optional double piston design.
Gate Valve
Globe Valve
Globe Valve
Design: API 600/API 603 /API 602/DIN
Size: 1/2~64”(DN50~DN1600)
Pressure Rating: 150~2500LB (PN16~PN420)
End ConnectionBW, RF, RTJ, NPT,SW
Options: Flexible or solid wedge, extended stem, Pressure seal bonnet
Operator: Handwheel, gear, bare stem, Actuator
Globe Valve
Globe Valve
Globe Valve
Design: BS1873/API 602/API 603/DIN
Size: 1/2~64”(DN50~DN1600)
Pressure Rating: 150~2500LB (PN16~PN420)
End ConnectionBW, RF, RTJ, NPT,SW
Options: Extended stem, Pressure seal bonnet, Bellow Seal.
Operator: Handwheel, gear, bare stem, Actuator
Check Valve
Globe Valve
Duo Plate Check Valve
LOV compact forged steel valves design is optimized by the most advanced FEA (finite element analysis) in accordance with API602, EN/ISO15761 and ANSI B16.34. All components are manufactured using CNC machine centers to ensure consistent high quality.
Design Feature
Full die forged or open die forging structure, Solid Wedge, Bolted or Welded Bonnet, Optional full or reduce port, Optional below seal structure (Gate and Globe), Optional plug or needle disc (Globe), Optional lift or swing disc (Check), Optional jacket structure(Gate Globe Check), Optional Cryogenic structure(Gate Globe Check).
Duo Plate Check Valve
Double Offset Butterfly Valve
Duo Plate Check Valve
Compared to conventional swing check valve, LOV’s dual plate check valves have the advantage of zero leakage toward outside, cost saving. It can be installed in any line orientation, superior seal performance. Valves are designed in accordance to API 594 and have dual plate or single plate design.
Design Feature
Dual plate or single plate, Light-weight & compact design, Spring loaded disc, Resilient or metal seated, Optional plug disc.
Design: API 594/6D/DIN
Size: 2~60”(DN15~DN1500)
Pressure Rating: 150~1500LB(PN16~PN250)
End Connection: WAFER, LUG, RF
Double Offset Butterfly Valve
Double Offset Butterfly Valve
Double Offset Butterfly Valve
LOV double offset butterfly valves can achieve zero leakage easily and ensure sealing more reliable because of the resilient seat design. Resilient seat design also can achieve low torque so as to cost-effective of choosing actuator. Soft materials, such as PTFE, have excellent applicability to acid or other media, thus it’s use improve applicability of valves to various services.
Design Feature
Double block and bleed, Zero leakage, ISO 5211 top flange, Less seat wear, Low torque, Super long usage life, Self-driven machinery sealing structure, Optional low emission packing, Optional fire safe design, Optional various seat materials.
Product Range
DesignAPI 609/DIN
Size: 2~72” (DN50~DN1800)
Pressure Rating: 150~600LB (PN10~PN100)
End Connection: Wafer, LUG, Double Flange.
Options: various seat material (EPDM, NBR, Viton, PTFE, RPTFE)
Operator: Lever, gear, bare stem, Actuator
Triple Offset Butterfly Valve
Double Offset Butterfly Valve
Double Offset Butterfly Valve
LOV triple offset butterfly valves are designed in accordance with API 609 with features of bi-directional, lightweight, cost-effective and low torque. For triple offset butterfly valves, the working temperature range is -196℃~ 816℃, and there’re various materials for choose.. In many industries, triple offset butterfly valve can be used not only on-off but also regulating the flow , thus it’s replacing traditional Gate、Globe & Ball valve.
Design Feature
Frictionless closure, Super long usage life, Double block and bleed, Blowout-proof stem, ISO 5211 top flange, Fire safe design, Optional stellited seat
Product Range
DesignAPI 609/DIN
Size: 2~72” (DN50~DN1800)
Pressure Rating: 150~600LB (PN10~PN100)
End Connection: Wafer, LUG, Double Flange.
Options: various seat material (Graphite, Metal)
Operator: Lever, gear, bare stem, Actuator
Double Block & Bleed Valve
Double Block & Bleed Valve
Double Block & Bleed Valve
DBB Double Block&Bleed Valves Is A Double Valve With Two Sealing Pairs. When In The Closed Position, Both Sealing Pairs Can Maintain A Sealed State At The Same Time. The Valve Body In The Middle Chamber (Between The Two Sealing Pairs) Has An Interface For Releasing Medium Pressure. It Is Divided Into Two Series: A Welded Valve Body And A Three Piece Structure, With Dual Cut-Off And Discharge Functions. One Valve Body Has Two Spheres, And The Valve Chamber Between The Two Spheres Is Equipped With An External Discharge Valve (Needle Shaped Globe Valve). The Sealing Performance Is Reliable, Suitable For Situations Where Multiple Valves Are Connected In Series And Sealing Requirements Are Strict. We Can Provide Customized Solutions According To Customer Operating Conditions.
Control Valve
Double Block & Bleed Valve
Double Block & Bleed Valve
Control valve is a section of our high pressure and temperature service valves are specially designed using the most recent refinements in control valve technology. We have used to control a wide variety of relatively clean liquids and gases at high-pressure differentials.
Design Feature
Designed to handle high pressure drops
Elimination of noise
Flow path designed to prevent blockage through flow contamination
Trim exit velocity control
Anti-Cavitation
Labyrinth Disk Stack
Hybrid Trim (Disk Stack & Hole Cage)
Applications
Severe service application, High pressure letdown
Cavitation control, Noise control
Control Valve
Double Block & Bleed Valve
Blow-down Valves
Design standard: ASME B16.34
Pressure classes: ASME 150 – 4500
Sizes: 3” - 36” (80mm - 900mm)
(other sizes under request)
Materials
A216-WCB/WCC, A352-LCB, A217-WC6, A217-WC9, A217-C5,
A217-C12, A217-C12A, A351-CF8, 351-CF3, A351-CF8M,A351-CF3M,
A351-CF8C, Alloy 20, Duplex, Super Duplex, Incoloy, Monel, Inconel, Titanium, Other materials under request.
Actuator
Spring-diaphragm, Pneumatic Cylinder
Electrical Motorized, Electro-Hydraulic
Advantages
High flow capacity and excellent flow control rangeability.
Cage-guided construction reduces plug vibration and provides stable performance throughout travel. Large variation of trim designs from single stage cage to multi stage low noise/anti-cavitation trim designs. Quick changed trim for Easy Maintenance.
Blow-down Valves
Parallel Slide Gate Valve
Blow-down Valves
Bottom Blow-down Valves
The valve is usually installed directly at the bottom of the boiler. It mainly uses the pressure of the boiler itself to regularly discharge particles, dirt and other deposits at the bottom of the boiler to prevent the blockage of pipelines.
Continuous Blow-down valves
The valve is mainly used in boiler water continuous discharge, the purpose is to control the content of high pressure boiler water dissolved chemicals, prevent boiler water saturation after dissolved salts, in order to recycling, high pressure boiler water discharge often discharge into the flash tank storage for other low voltage application, continuous discharge of boiler water can be directly applied to detect the contents of the chemical constituents in the water.
Blow-down Valves
Parallel Slide Gate Valve
Parallel Slide Gate Valve
Blow-off valves
The valve is mainly used for quick purge and discharge of solid particles in boiler lines and discharge of boiler condensate, etc. Y - shaped structure is usually used, good flow performance, not easy to accumulate solid particles.
Angular body structure, venturi structure are adopted for the valve seat to increase the flow cross section area at the outlet of the valve, reduce the flow rate, increase energy loss, seat surface hardening treatment, and extend the service life
Stem & spool adopt integral design (high energy conversion), spool guide change to sleeve guide, can withstand higher pressure difference
The valve core adopts CASCADE multi-stage step-down structure to effectively avoid cavitation erosion.
Parallel Slide Gate Valve
Parallel Slide Gate Valve
Parallel Slide Gate Valve
LOV range of high pressure parallel Slide Gate valves is primarily designed for isolation of steam and feed water as well as many other applications.
A parallel slide gate valve seat achieves tightness by utilising the line pressure, rather than by mechanical effort which can be the case with a wedge gate valve design.This eliminates the possibility of binding which may occur with a wedge gate valve as a result of large temperature fluctuations within the valves during service.
The effort required to seal a parallel slide gate valve is therefore much reduce over that required to seal a wedge gate valve. This is an advantage when fitting actuators with the parallel slide design allowing smaller sized actuators to be used, reducing in cost savings.
A parallel slide valve is ideally suited to in-line maintenance with the re-machining of all internal components being on centre and with the seat faces only needing to normally parallel.
Parallel Slide Gate Valve
Parallel Slide Gate Valve
Parallel Slide Gate Valve
Design Feature
Isolation without thermal binding. Bi-directional operation. Position seated - stops on limit not torque. Flat seating surface by Threaded, Welded or integral Seat ring. Minimum pressure drop across the valve. Manual and Actuator operated Follower eye for very laminar flow is available on request. It avoids any turbulences and minimizes the pressure drop
Applications
Thermal Power station systems
High Temperature & Pressure Service
Main steam & Feedwater isolation
Feedwater heater protection
Design standard
ASME B16.34 & API-600 / BS-1414
Face to Face: ASME B16.10
Flanged Ends: From 2” to 24” as per ASME B16.5, above 24” as per ASME B16.47
Butt Weld Ends: ASME B16.25
Pressure classes
ASME 600 – 4500
Sizes
2” - 36” (50mm - 900mm) (other sizes under request)
Materials
A216-WCB/WCC, A352-LCB, A217-WC6, A217-WC9,
A217-C5, A217-C12, A217-C12A, A351-CF8, A351-CF3,
A351-CF8M, A351-CF3M, A351-CF8C, Alloy 20, Duplex, Super Duplex, Incoloy, Monel, Inconel, Titanium, Other materials under request.
Accessories
Bypass, Overpressure protection device,
Handwheel with chain, Balance hole, Belows seal
Limit micro switches
Segment Ball Valve
Parallel Slide Gate Valve
Parallel Slide Gate Valve
Segment ball valve is one type of ball valves. lts closure is a half ball with V type port which has sharp edges. During operating the valve, friction action will be occurred between its closures that producing a strong shearing forceto the medium, and a fan-shaped area will be formed between V type port of the ball and the port of seat ring, so thesection area of flow port can be changed, and the medium can be precisely regulated. lt is a kind of regulating valvewith angle rotation, having same sealing performance as common ball valves, so it simultaneously has both functionsof reaulatina and on-ot. incorporatina with pneumatic or electric actuators, it can be widely used in the automaticcontrol systems in different industries.
Design Feature
Integral structure of Body : Both wafer type and flanged type V-type ball valves are with integral, side-entrystructure which has strona rigidity, makina it hard to be deformation and leakage.
With lower and upper self-lubricated bearings: Lower and upper self-lubricated bearings are installed inside thebody. So the contact surface with stem is bigger which have a high carrying capacity and low friction coefficient, that operating torque of valve is reduced.
Seat rings can be metal seats or PTFE soft seats depending on different workina medium, Sealina face of metalseats will be overlaid with hard alloy, while ball surface is hardened with hard chromium plated or spraying overlayplasma nitriding, etc, so as to increase working life of sealing faces and improve temperature resistance. PTFE orRPTFE seats have excellent sealing performance, high corrosion resistance and wide applications.
Economical practicality: ight body weight, small stem torque, so it can be installed with smaller pneumatic orelectric actuators, high cost-effective compared to same size/class of other kinds of regulating valves.
Wide applications: With the shearing action between V port and seat ring, also with smooth body internal surfaceso making the medium is not easy to be kept in the body, So it is not only suitable for liauid medium, but also better forusing in control system of mediums contained fibers and solid particles.
Precise control of small fiow: Through special machining on the V port for small sizes, which can achieve a precisecontrol of low CV value.
Bottom Valve / Sample Valve
Logistics and Supply Chain Management
Logistics and Supply Chain Management
BOTTOM VALVES/SAMPLE VALVE is mainly used for the bottom discharge, sampling and no-dead zone shut-off operation of reaction tanks, tanks and other containers. The bottom flange of the valve is welded to the bottom of the tank and other containers, so as to eliminate the residual process medium usually at the outlet of the container, the actual need of the discharge valve root, the bottom structure is designed for the flat bottom, the body is V-shaped, and provides two modes of lifting and lowering the valve disc. The inner cavity of the valve body is provided with a sealing ring that is resistant to erosion and corrosion. At the moment of opening the valve, it can protect the valve body from erosion and corrosion of the breaking medium, and carry out special treatment on the sealing ring, so that the hardness reaches HRC5-62, with high wear resistance and corrosion resistance, the valve disc seal is surfacing cemented carbide on the front surface as needed, and the sealing pair is sealed by wire to ensure the reliability of the seal and prevent scarring. At the same time, the design of short stroke valve disc is adopted.
Materials
WCB/A105/16Mn are mainly used for non-corrosive media, such as oil, gas, water, powder, etc.
CF-8/CF-3/304/304L are mainly used for nitric acid and refined terephthalic acid.
CF8M/CF3M/316/316L are mainly used for acetic acid, refined terephthalic acid.
Nickel-based alloy and titanium alloy are mainly used for fine terephthalic acid and strong corrosive media. Users should make the specific choice of materials according to the actual use of the medium.
Pressure temperature level
A S M E B1 6 34 specifies the pressure and temperature levels for various materials of A, S, T, and M, which specifies in detail the maximum allowable non impact pressure (gauge pressure) for different shell materials at various operating temperatures. It is one of the main benchmarks for designing and selecting valves. Therefore, when selecting a discharge valve, it is necessary to consider the operating pressure and operating temperature according to the pressure temperature level AS M E B 16 3 4 to determine the material (referring to the shell) and pressure rating (referring to the nominal pressure) of the selected discharge valve. If the operating temperature and pressure are overloaded, it may cause valve damage. When selecting valves, various conditions should be fully considered to avoid overloading of the valve force.
Logistics and Supply Chain Management
Logistics and Supply Chain Management
Logistics and Supply Chain Management
Our logistics and supply chain management services ensure efficient and timely delivery of materials and equipment to your oil and gas operations. We can help you streamline your supply chain and reduce costs.