Ckh643h Exhaust Check Valve

• Media: Water-Vapour Oil
• Temperature: Low Temperature
• Material: Stainless Steel Carbon Steel Brass
• Connection Form: Flange Welding
• Structure: Swing
• Pressure: High Pressure, Medium Pressure and Low Pressure
• Model NO.: CKH643H
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: Hard Seal and Soft Seal
• Flow Direction: Unidirection
• Standard: DIN GB ANSI Bsw JIS
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8481804090
• Production Capacity: 9999

Product Description

The design and manufacture acceptance standard adopts ANSIB16.34, E101 or JB/T3595, the strength and sealing performance fully meet the requirements of the standard, the vacuum test of the valve in the vacuum state, and the whole machine life meets the requirements of the user.

2. The valve flap is designed to be connected by the rocker rod and the valve stem, which can be matched with the sealing surface of the valve body to ensure that the sealing surface is consistent.
3. According to different temperatures, the main material is carbon steel or high temperature steel, and the sealing surface is surfacing cemented carbide.
4. The valve is equipped with damping weight, which can balance the dynamic torque of the closing part and prevent the occurrence of non-hammer.
5. The sealing surface of the valve seat tilts at a certain Angle to reduce the closing time, reduce the impact, and protect the equipment itself and the pipeline safety.
6. The suction check valve body cavity adopts streamlined design, large flow capacity and reduces valve resistance.
7. The actuator is a spring return type cylinder or hydraulic cylinder, and the action of the valve closing part is relatively independent, and the failure of the actuator does not affect the action of the closing part.
8. The closing part is opened with a limiting mechanism to avoid damage caused by opening too much.
9. The inner wall of the cylinder ring hydraulic cylinder is coated with wear-resistant and corrosion-resistant layer, which can increase the life, reduce the action resistance, and make the valve flexible and reliable.
10. The actuator is equipped with valve switch position signal output and local indication of valve opening position.
Extraction check valve design and manufacture inspection standards:
Design and manufacturing standards: ASME/ANSI 16.34, E101, JB/T3595
Structure length standard: JB/T3595, ASME/ANSIB16.10, GB/T12221
Welding end or flange standards: GB/T12224, ASME/ANSIB16.25, GB/T9113, JB/T79~JB/T82
Test and acceptance standards: JB/T9092, JB/T3595, ASME/ANSIB16.34, E101
Technical parameters of extraction check valve:
Nominal diameter: DN200-1000mm
Nominal pressure: PN0.6-10.0mpa
Operating temperature: 200-510°C
Extraction check valve body material:
Valve body disc rocker valve cover: WCB, WC6, WC9
Valve stem: 2Cr13, CrMoV
Extraction check valve structure features:
1, sealing surface surfacing Cr13 series stainless steel or cobalt-based carbide, has good wear resistance, sealing performance is stable and reliable.
2. The heavy hammer acts on the pin through the lengthening rod and the fork to balance the heavy torque of the rocker rod and prevent the occurrence of water hammer. When the medium is flowing forward, it helps to open the valve, and maintain the stability of the valve and reduce vibration during operation.
3, when the medium is flowing forward, the lower chamber of the cylinder is injected, and the weight works together, and the balance of the valve disc is located in the fully open position. When the medium is flowing in reverse, the lower chamber of the cylinder piston is rapidly relieved, and the valve disc is quickly closed within 0.5 seconds.