â… ï¼ŽProduct Introduction
The plunger valve is composed of valve body, valve cover, valve stem, plunger, orifice frame, sealing ring, handwheel and other parts (as shown in the figure). When the handwheel rotates, it drives the plunger to reciprocate up and down in the middle of the orifice frame through the valve stem to complete the opening and closing functions of the valve. In the valve, an interference fit is adopted between the plunger and the sealing ring. By adjusting the flange bolts in the gland, the lateral force generated by the compression of the sealing ring seals with the hole surface in the valve body and the outer circle of the plunger, thus ensuring the tightness of the valve, eliminating internal and external leakage, and at the same time, the valve has small opening torque, which can realize rapid opening and closing of the valve.
Since the surface of the plunger is processed by a high-precision cylindrical grinder, and the sealing ring is made of a new type of non-toxic sealing material with strong elasticity and high wear resistance, the sealing is reliable and durable, thereby improving the service life of the plunger valve. The material can be 304 or 316L, and its performance and appearance are completely comparable to foreign products.
The caliber of this plunger type sampling valve ranges from DN15 to DN40. The double-seal plunger type sampling valve is produced according to foreign samples, and is especially suitable as a special valve for sampling and inspection of reaction kettles under easy crystallization working conditions. It is a common inspection valve used in chemical production, and is specially designed for taking a certain amount of materials in production to inspect whether they meet the requirements. Some manufacturers use ball valves instead, but they are often blocked, which is very troublesome. The plunger sampling valve overcomes this shortcoming of ball valves. It is based on the principle of a plunger type valve and has a real dual seal system, which can avoid leakage. The maximum sealing temperature can reach 450℃. The exposed length of the plunger and the thermal insulation shell can be designed according to the installation needs to ensure that there is no material accumulation in the pipeline at the sampling port of the container. It is not easy to block even for materials with high viscosity, so it is an ideal sampling device. This product is manufactured by silica sol precision casting, and the materials can be 304, 316, 316Ti, 316L, 904L, Monel-400, Hastelloy.
The plunger type sampling valve is especially suitable for sampling valves of crystallization reaction kettles, and is specially designed for chemical enterprises to inspect whether the special materials meet the requirements in production. The sealing temperature of the plunger type sampling valve can reach 230℃ and 550℃, and the exposed length of the outer plunger can be designed according to the installation needs to ensure that materials with high viscosity at the sampling port of the container are not blocked. It is an ideal sampling device.
Ⅱ．Product Features
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Dual connection modes available: thread connection and flange connection, which can meet different installation requirements of customers.
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Scientific structure design: composed of valve body, valve cover, valve stem, plunger and other key parts, the opening and closing is realized by the up and down reciprocating movement of the plunger, with small opening torque and quick opening and closing.
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Excellent sealing performance: interference fit between plunger and sealing ring, lateral force generated by compressing the sealing ring through flange bolts ensures tight sealing, completely eliminating internal and external leakage.
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Durable and reliable: the plunger surface is processed by high-precision cylindrical grinder, and the sealing ring is made of non-toxic new material with strong elasticity and high wear resistance, which prolongs the service life of the valve.
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High material adaptability: optional materials include 304, 316, 316Ti, 316L, 904L, Monel-400, Hastelloy, etc., which can meet different working condition requirements.
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Wide caliber range: DN15 to DN40, covering most common sampling scenarios in chemical production.
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Special applicability: especially suitable for sampling of crystallization reaction kettles, solving the problem that ball valves are easy to block; it is not easy to block even for high viscosity materials, and is an ideal sampling device.
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High temperature resistance: the maximum sealing temperature can reach 450℃, and it can also meet the working conditions of 230℃ and 550℃.
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Customizable design: the exposed length of the plunger and the thermal insulation shell can be designed according to installation needs, ensuring no material accumulation at the sampling port.
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High manufacturing precision: manufactured by silica sol precision casting, with performance and appearance comparable to foreign products.
Ⅲ．Technical Data
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Technical Parameter
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Specification
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Valve Type
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Plunger Type Sampling Valve
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Connection Mode
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Thread Connection, Flange Connection
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Caliber Range
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DN15 – DN40
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Sealing Temperature
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Up to 450℃; Optional 230℃, 550℃
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Sealing System
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Dual Seal System (Dual Seal)
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Manufacturing Process
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Silica Sol Precision Casting
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Material Option
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304, 316, 316Ti, 316L, 904L, Monel-400, Hastelloy
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Plunger Processing
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Processed by High-Precision Cylindrical Grinder
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Sealing Ring Material
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Non-toxic New Sealing Material with Strong Elasticity and High Wear Resistance
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Special Application
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Sampling of Crystallization Reaction Kettles, Suitable for High Viscosity Materials
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