The specification and category of z41x rising stem elastic seat seal gate valve shall meet the requirements of pipeline design documents
The model of z41x rising stem elastic seat seal gate valve shall indicate the national standard number requirements. If it is an enterprise standard, the relevant description of the model shall be indicated.
The working pressure of z41x rising stem elastic seat seal gate valve is required to be greater than or equal to the working pressure of the pipeline. On the premise that the price is not affected, the working pressure that the valve can bear shall be greater than the actual working pressure of the pipeline
The manufacturing standard of z41x rising stem elastic seat seal gate valve shall indicate the national standard number. If it is an enterprise standard, the enterprise documents shall be attached to the procurement contract. This kind of valve is in the pipeline
model：Z41X	Nominal diameterDN：40-400	Use pressureMPa：1.0-6.4
Connection mode: flange	Form: automatic	Main function: switch
Medium: water	Material: cast iron, cast steel, stainless steel	Standard: national standard, Ministry of machinery standard or customized non-standard

 

       Z41x rising stem elastic seat seal gate valve not only has the advantages of elastic seat seal gate valve, but also can directly display the valve opening. It can open and close quickly and reliably, so it is often used in fire protection and industrial systems. It is generally installed at a higher position from the ground.

 

Nominal pressure: 10 ～ 25 MPa
Nominal diameter: 50 -- 400mm
Working temperature: O ～ 80 ℃
Applicable media: water, oil, gas, etc
Flange standard: GB / T 17241.6 gb9113
Test standard: gbl3927 apl598

Preface	Part name	texture of material
1	Handwheel	malleable iron
2	Stem nut	copper alloy
3	Support	Gray cast iron, ductile iron, cast steel
4	Press cover
5	seal ring	Nitrile rubber, EPDM
6	Valve rod	stainless steel
7	Middle mouth pad	Nitrile rubber, EPDM
8	Gate plate	Ductile iron + EPDM or NBR
9	Valve body	Gray cast iron, ductile iron, cast steel

 

 

DN	50	65	80	100	125	150	200	250	300	350	400
L	178	190	203	229	254	267	292	330	356	381	406
Hmin （全关）	322	332	350	420	581	581	736	882	1109	1300	1380
Hmix （全开）	374	398	429	524	721	736	942	1013	1117	1655	1805

 

(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.