The hydraulic high-pressure fixed ball valve is divided into hard seal and soft seal. Compared with soft seal fixed ball valve, the difference between hard seal fixed ball valve and soft seal fixed ball valve is that the latter is soft seal seat, while the former's ball and valve seat are hardened by special process, and there are many hardening methods, such as integral nitriding, flame spraying, surfacing, etc. (not limited to this), hardening High temperature metal hard sealed cast steel fixed ball valve is widely used in petroleum, chemical, metallurgy, papermaking, electric power, mining and other industries, especially suitable for medium with high temperature and various dust and solid particles.

 

The valve adopts floating or fixed design
Valve and actuator with mechanical limit device
Valve automatic control, fault position keeping
It can realize remote and local control,
With remote communication function
With position locking device

1. The main valve body, auxiliary valve body, gland and other main parts of the product are molded by casting, which has the advantages of light weight and lower cost than forged steel valve.  
2. The flexible movable metal valve seat structure with cylindrical spring or wave spring preload is adopted. The design of sealing preload is reasonable and the closing and opening is flexible, which can effectively ensure the reliability of sealing.  
3. The ball is made of super British speed spraying wear-resistant alloy powder, and the valve seat is overlaid with Stellite cemented carbide and sprayed with other super wear resistant alloy materials.  
4. The sealing surface is finely ground, and the sealing is reliable.  
5. Full diameter channel design, small flow resistance and large flow capacity.  
6. The valve rod anti fly out design is safe and reliable. The anti-static function can be designed according to the requirements.  
7. Automatic pressure relief valve seat design, once the valve body cavity abnormal pressure rise, the valve seat will automatically release to the low pressure end, more safe.  
8. Both the upper and lower valve stems are designed with bearing structure, and the torque is lighter in the process of opening and closing.

 

Product Name: hydraulic high pressure fixed ball valve
Product series: fixed ball valve series
Nominal diameter: dns2 ~ 24 "
Nominal pressure: pn0.25-16.0mpa, Class 150 ~ 900
Adopted standards: GB, ANSI, DIN, JIS, BS, API, NACE
Working temperature: - 29 ~ 450 ℃

Ambient temperature: - 40 ℃ ~ + 120 ℃
Driving power supply: 220VAC, 380VAC, 400VAC
Driving pressure: 4 ~ 20MPa
Area grade: non explosion proof, flameproof
Valve seal: soft seal, metal seal
Protection level: up to IP68

(1) In strict accordance with the requirements of the contract, to provide qualified products that meet the design standards.
(2) Strictly check and control the quality of raw materials, components and accessories.
(3) Ensure that the processing technology of the equipment is perfect and the detection means are complete. Products will never leave the factory with defects.
(4) Be fully responsible for the supply, quality, equipment performance, technical interface, service and other aspects of the subcontractor. The key parts specified in the contract must meet the requirements of relevant qualification and be approved by the demander.
(5) Provide relevant department standards and drawings to the supervision unit according to the contract, provide convenience for the supervision, and inform the demander and the supervision representative of the shutdown parts of the supervision equipment 7 days in advance. The supervision assigned by the demander is to urge us to produce qualified products according to the standards, but it does not reduce all our quality responsibilities.
(6) The quality defects in the process of equipment manufacturing shall be timely reported to the demander and the supervision representative without concealment. If the equipment defect exceeds the standard specified in the contract, the supplier shall replace it unconditionally. In the process of installation and trial operation, if there are quality problems of the equipment, the problems should be dealt with first, and then the responsibilities should be clarified. Everything should be based on the requirements of project progress.
(7) In case of any accident, we will replace and repair the supplied equipment free of charge as soon as possible until the demander is satisfied.
(8) In case of missing parts or missing parts caused by other reasons in the process of unpacking, we are responsible for making up the missing parts for free as soon as possible. We shall be responsible for the quality problems found during the installation and commissioning of the equipment and in the operation of the equipment in the future.
(9) Provide the demander with all technical data and drawings according to the contract on time. Have the obligation to invite the demander to participate in our technical design audit when necessary.
(10) According to the time required by the demander to the site for technical services, guide the demander to install, trial run and trial production according to the requirements of our technical data and drawings.
(11) For the supporting equipment related to the contract equipment purchased by the demander first, we will actively provide the technical conditions and data meeting the equipment interface requirements.
(12) Strictly implement the minutes or agreements of the meeting held by both parties on relevant issues.
(13) According to the provisions of the contract, free business training courses on equipment installation, commissioning, use and maintenance technology shall be held for the demander.
(14) Strengthen pre-sale, in-sales and after-sales services, and implement "24-hour service", "advanced service", "whole process service" and "life-long service" in the whole process of product manufacturing, installation, commissioning and overhaul.
(15) After receiving the quality problem information reflected by the demander, reply within 24 hours or send service personnel to the site as soon as possible, so as to ensure that the user is not satisfied with the quality and the service does not stop.
(16) Free for the product to provide lifelong maintenance, where our factory users, have established a detailed user file, our factory after-sales service. Regular return visit and inspection system are implemented to guide the daily maintenance of users, and timely point out and solve possible faults.
(17) At any time to meet the demander's requirements for spare parts, lifetime to provide users with high-quality and low-cost spare parts.