- ball
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Y44H bellows pressure reducing valve
- sell：021-32051999
- sell：021-32050777
- fax：021-66099555
Details
- Product Introduction
- Service Promise
- Ordering Process
Y44H bellows pressure reducing valve is used in the pipeline of steam, air and water without corrosive medium whose temperature is below 200 C, so that the pressure of medium passing through the valve body can be kept constant to meet the needs of work. The inlet pressure P1 is 1.0-0.1 MPa, the outlet pressure P2 is 0.4-0.05 MPa, and the pressure difference between the front and back of the valve is not less than 0.6 MPa, nor less than 0.05 MPa.
Action principle and structure elucidation
1. The inlet medium pressure enters the body cavity from the opening clearance between the disc and the valve body sealing ring to make the medium pressure flow through the bellows combination box. The bellows and springs are compressed by the medium pressure. The disc closes the valve body sealing ring with the displacement of the valve stem. The media in front of the valve is cut off without the medium pressure behind the valve. The supplement. When the pressure of the medium behind the valve decreases, the bellows are deformed by the radial force of the adjustable spring, and the valve stem jacks the disc. The medium can be reduced by pressure through the valve body sealing ring.
2. Bellows pressure relief valve is composed of valve body, valve cover, disc, valve body sealing ring, stem, bellows, regulating spring and other parts, body cavity inlet assembly disc, valve body sealing ring and auxiliary spring, auxiliary spring is to maintain disc and valve body sealing ring automatic sealing, outlet body cavity assembly elastic sealing element (bellows) Ensure the leakage of medium pressure after the valve and compensate for the non-uniformity of pressure. The screw is to adjust the working performance of the spring loaded pressure reducing valve.
Main technical parameters
公稱壓力（MPa） | 0.6 | 1.0 | 1.6 |
殼體試驗壓力（MPa） | 0.9 | 1.5 | 2.4 |
密封試驗壓力（MPa） | 0.6 | 1.0 | 1.6 |
MAX進口壓力（MPa） | 0.6 | 1.0 | 1.6 |
出口壓力范圍（MPa） | 0.05-0.4 | 0.1-0.8 | 0.1-1.0 |
壓力特性偏差（MPa）△P2P | GB12244-1989 | ||
流量特性偏差（MPa）△P2G | GB12244-1989 | ||
MIN壓差（MPa） | 0.1 | 0.15 | 0.15 |
滲漏量 | GB12245-1989 | ||
* shell test does not include bellows. When shell pressure test, the bellows assembly must be removed.
Material of main parts
零件名稱 | 零件材料 |
閥體、閥蓋 | WCB |
底蓋 | WCB |
閥座、閥瓣 | 2Cr13 |
波紋管 | 1Cr18N9Ti |
波紋管上墊 | 2Cr13 |
波紋管下墊 | 2Cr13 |
號向座 | 2Cr13 |
主閥彈簧 | 50CrVA |
調節彈簧 | 60S12Mn |
DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
Cv | 1 | 2.5 | 4 | 6.5 | 9 | 16 | 25 | 36 | 64 |
公稱通徑DN | 外形尺寸 | 連接尺寸 | |||||||||||||||||
L | H | H1 | PN1.6MPa | PN1.6MPa | PN1.6MPa | ||||||||||||||
0.6/1.0MPa | 1.6MPa | D | K | n-Φ | d | C | D | K | n-Φ | d | C | D | K | n-Φ | d | C | |||
15 | 140 | 140 | 290 | 90 | 80 | 55 | 4-12 | 40 | 12 | 95 | 65 | 4-14 | 45 | 12 | 95 | 65 | 4-14 | 45 | 14 |
20 | 140 | 140 | 295 | 98 | 90 | 65 | 4-12 | 50 | 12 | 105 | 75 | 4-14 | 55 | 14 | 105 | 75 | 4-14 | 55 | 14 |
25 | 160 | 160 | 295 | 110 | 100 | 75 | 4-12 | 60 | 14 | 115 | 85 | 4-14 | 65 | 14 | 115 | 85 | 4-14 | 65 | 14 |
32 | 1080 | 180 | 295 | 110 | 120 | 90 | 4-14 | 70 | 14 | 135 | 100 | 4-18 | 78 | 16 | 135 | 100 | 4-18 | 78 | 16 |
40 | 200 | 200 | 325 | 125 | 130 | 100 | 4-14 | 80 | 14 | 145 | 110 | 4-18 | 85 | 16 | 145 | 110 | 4-18 | 85 | 16 |
50 | 230 | 230 | 325 | 125 | 150 | 110 | 4-14 | 90 | 14 | 160 | 125 | 4-18 | 100 | 16 | 160 | 125 | 4-18 | 100 | 16 |
65 | 280 | 325 | 130 | 160 | 130 | 4-14 | 110 | 14 | 180 | 145 | 4-18 | 120 | 18 | 180 | 145 | 4-18 | 120 | 18 | |
80 | 310 | 380 | 160 | 185 | 150 | 4-18 | 125 | 16 | 195 | 160 | 4-18 | 135 | 18 | 195 | 160 | 8-18 | 135 | 20 | |
100 | 350 | 380 | 170 | 205 | 170 | 4-18 | 145 | 16 | 215 | 180 | 8-18 | 155 | 20 | 215 | 180 | 8-18 | 155 | 20 | |
The best quality, first-class service Qigao creates more value for you!
"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:
Product Standards：
Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.
pre-sale service：
Product introduction, technical exchange, non-standard product design, troubleshooting。
Sale service：
A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.
After sales service：
1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).
2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.
3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).
4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.
1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：
a、Structure length；
b、Connection Type；
c、Nominal diameter, full diameter, reduced diameter, pipe size;
d、Operating medium and temperature, pressure range；
e、Tests, inspection standards and other requirements
2、The factory can configure various types of driving devices according to customer's specific requirements.。
3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.
4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.
Order Process：
1、Customer purchase list fax to021-33872143，Or call us 021-33872141
2、Receive customer purchase list, provide valve model selection and quotation (price list)。
3、Specific agreement: delivery date, special requirements, etc.。
download Google：
1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：
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2、The factory can configure various types of driving devices according to customer's specific requirements.。
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3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.
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4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time.， The rest of the payment will be remitted before shipment to arrange delivery in time.。
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Sale service：
Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。
For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.
After sales service：
1、"Qigao" product quality period is from the factory12Month, practice“Three packs”Service (return, replacement, warranty)。
2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.，
In order to further improve product quality。
3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。
4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。
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