Efficient Spring Loaded Double Parallel Sliding Gate Valves for Gas Medium

• Customization: Available
• Media: Gas
• Temperature: High Temperature
• Model NO.: AOC-9033
• Type: Straight-through
• Material: Stainless Steel
• Connection Form: Flange
• Pressure: High Pressure
• Actuator: Electric
• Seal Surface: Parallel Gate Valve
• Thread Position of Valve Rod: Inside Gate Valve
• Usage: Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Medium: Gas/ Suspended Particles/Fibers
• Actuator Conbination: Pneumatic Cylinder Actuator
• Standards: API/Sil
• Characters: Excellent Opening and Closing
• Operations: Featuring Full Bore/Low Flow Resistance
• Operation: Good Sealing Performance
• Connections: RF Flange/Rtj/Sw Socket Welt/Bw Butt Weld
• Actuator Size/Plug Size: 1.1/2′′(40A)-36′′(600A)
• Actuators: Pneumatic, Electric
• Fluid Temperature: -20~+566degree
• Body Materials: A216 Wcb/C/A351CF8
• Body Material: Carbon Steel/Stainless Steel
• Trim Materials: A105+Enp+PTFE/SUS316+Stellite
• Flow Characteristics: on-off
• Body Rating: ANSI150-1500
• Transport Package: Plywood Case
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000/Year
• Package Size: 1.00cm * 1.07cm * 0.80cm
• Package Gross Weight: 20.000kg
• Lead Time: 25 days (1 - 50 Pieces) ; To be negotiated ( > 50 Pieces)

Product Description

Product Description

<sup>The state-of-the-art Efficient Spring Loaded Double Parallel Sliding Gate Valve for Gas Medium is engineered to outperform traditional wedge gate valves with its reduced operating torque and compact drive size. Ingeniously crafted, the internal valve plate incorporates an advanced INCONEL butterfly spring, replacing conventional coil springs for seamless integration within the valve body. Moreover, its innovative compensation structure design prevents jamming due to high temperatures caused by adhesion and wedge extrusion. The valve plate and seat surfaces are fortified with superior hardening processes, including hard alloy overlay welding and surface spraying with Co-Cr-Ni alloy, WC, and boron, ensuring exceptional durability and a self-cleaning capability with an impressive surface hardness reaching HRC90 or higher.

The versatile Efficient Spring Loaded Double Parallel Sliding Gate Valve is designed to seamlessly integrate with a range of actuators, including pneumatic, electric, electro-hydraulic, or manual actuators, offering unparalleled adaptability to meet your specific operational needs.</sup>
 

Product Parameters

Body  Type			AOC-9031 Single Parallel Sliding Gate Valves	AOC-9032 Double Parallel Sliding Gate Valves	AOC-9033 Spring Loaded Double Parallel Sliding Gate Valves
Actuator Size			1.1/2''(40A)-36''(900A)	1.1/2''(40A)-36''(900A)	1.1/2''(40A)-24''(600A)
Plug Size			1.1/2''(40A)-36''(900A)	1.1/2''(40A)-36''(900A)	1.1/2''(40A)-24''(600A)
Body Rating			ANSI 150-300	ANSI 150-600	ANSI 150-1500
Fluid Temperature			-20~+250ºC	-20~+450ºC	-20~+566ºC
Connections			Flanged(RF, RTJ), Butt Weld, Socket Weld(SW, BW)
Body Materials			A216WCB/C,A217 WC6/9, A351 CF8, A351CF8M,etc
Trim Materials			A105+ENP+PTFE,SUS316+Stellite, etc		SUS316+Stellite
Flow Materials			ON-OFF	ON-OFF	ON-OFF
Leakage		Metal Seat	ANSI Class V	ANSI Class V, VHS	ANSI Class V, VHS
		Soft Seat

 

Structural Features

 

Product Feature

 

^{Experience ultimate sealing efficiency with our pressure seal bonnet, expertly crafted using a high-density pure graphite gasket; your guarantee for enduring resilience.
Introducing an advanced overpressure protection device within the bonnet, ensuring robust defense against excessive pressure, safeguarding your operations seamlessly.
Our gate valve boasts a sophisticated spring preloaded flat design, delivering exceptional performance and reliability.
With a wide valve seat and gate, our product ensures enhanced stability and consistent performance for your gas medium workflows.
Equipped with a precise limit device on the support rod, our valve offers unmatched operational control and precision.
Featuring an innovative anti-rotation device on the valve stem, this design ensures steadfast alignment and superior functionality.
Crafted with precision, the sealing surface features different hardness levels on each end to minimize wear significantly. With a strategic hardness difference (~5HRC): gate - STLG#, valve seat - STL12#, it promises extended durability.
Our bonnet sealing is designed with a conical shape, providing impeccable sealing integrity and reliability.
Facilitating bidirectional flow, this valve offers versatile applications across diverse operational scenarios.
Integrating two thrust bearings and aluminum bronze sleeves, our design ensures smooth operation and heightened durability.
Engineered with an available structure for bypass piping, our product supports enhanced operational flexibility.}

Spring Compensated Valve Plate Assembly

Utilizing an advanced graphite ring pressure self-sealing structure, this mechanism guarantees superior sealing under varying pressures.

^{Ingeniously designed, the sealing force amplifies with pressure increases, ensuring steadfast and reliable operation across variable conditions.
In environments subject to high temperatures or frequent temperature fluctuations, we strongly recommend utilizing graphite pressure sealing gaskets as replacements for standard soft iron gaskets. These are ideal for high-temperature and frequent temperature cycle applications, providing enhanced resilience and safety.}

Double Parallel Sliding Gate Valves

<sup>Our cutting-edge Double Parallel Sliding Gate Valves innovatively replace the traditional wedge gate valve structure with a sealing system comprising two parallel gates and a wedging device. Its unique design ensures reliable sealing even under thermal deformation, preventing jamming caused by high temperature expansion.

When the valve opens, the sealing disk and valve seat initially disengage, then rise via a wedge block effect, dramatically reducing friction between sealing surfaces. This results in minimal torque, effortless operation, and extended service life. Our design successfully addresses challenges such as high lifting force for single gate start, sealing surface wear, poor sealing, short lifespan, and jamming during high-temperature operations, thereby enhancing both the sealing performance and longevity of the valve.</sup>


 

Production application

Company Profile

<sup>SNT Machinery (Qingdao) Co., Ltd. is a distinguished manufacturer of control valves, seamlessly integrating manufacturing, design, sales, and services under one roof. With a high starting point and rapid development trajectory, SNT is strategically located in Qingdao, Shandong Province, sprawling over an impressive area of 42,000 square meters. The facility boasts state-of-the-art workshops and cutting-edge production equipment. As a high-tech enterprise, SNT prides itself on possessing independent intellectual property rights and has incorporated advanced management and production expertise from abroad. The company employs over 150 skilled workers, with research and development specialists constituting 15% of the workforce, and 30% holding graduate or higher degrees. Leveraging a top-tier production management team and pioneering technology research and development, SNT produces a substantial volume of premium-quality valves utilized in the petrochemical, oil, and coal chemical industries, achieving a remarkable sales value approaching 100 billion in the year 2017.

SNT proudly holds the TS Special Equipment Manufacturing Certificate and ISO 9001 certification, and has earned net qualification certificates from esteemed entities such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. The company has also secured numerous national patents in various technologies. SNT is adept at designing and manufacturing an extensive range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By amalgamating the finest attributes of renowned valves globally with its own research and development innovations, SNT has mastered the production of diverse valve types, including Globe Valves, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and T Three-eccentric Center Butterfly Valves.
Additional offerings include V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. The driving mechanisms available encompass manual, power-driven, pneumatic, and hydraulic options. Main component materials comprise A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, among others, with specifications ranging from 1/2" to 120", operating pressures of ANSI 150# to 2500#, and temperatures spanning from -196ºC to 1100ºC.

Harnessing advanced production technology management and a robust quality assurance system, SNT Valves have gained widespread acclaim across various industries, including petrochemical, oil, steel & iron, paper manufacturing, and power generation. Our esteemed clientele features industry giants such as SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and many others, including SINOPEC Changling and Jinan branches.

At SNT, we prioritize our users' profitability, dedicating ourselves to establishing an exceptional quality and reputable brand. Our exemplary quality assurance and comprehensive after-sales systems ensure that SNT valves collaborate seamlessly with all our customers, fostering mutual prosperity and success.</sup>