190 QFT3000 Mechanical Seals for Pumps Pusher Seals

(1)Features
Quench fluid supply systems are used to
supply single or tandem mechanical seals.
They act as a convenient fluid reservoir.
The exchange of fluid takes place by the
thermosiphon principle or by forced
circulation, e.g. with a pumping screw.
The QFT3000 stainless steel tank is
equipped with a sight-glass for monitoring
the MIN filling level and can be fastened
with a lug fixture.
Circulation in accordance with API 682/
ISO 21 049: Plan 51, Plan 52

(2)Functional description
Quench fluid systems are employed:
• to absorb leakage
• to monitor the leakage rate (e.g. through periodic reading of the level in the tank)
• to lubricate and to cool the outboard mechanical seal in a tandem arrangement
• to prevent icing
• to protect against dry running
• to stabilize the lubricating film
• to exclude air from the media in order to prevent a reaction with oxygen in the air

(3)Advantages
• Two sight-glasses fitted on opposite sides enable optimum reading of the fluid level and condition of the medium
• Tank made of 1.4571: high resistance to corrosive media
• Return flow via integrated rising pipe for selective current control
• Combined filling and ventilation filterin the quench fluid tank for reliable operation

(4)Item      Description
1            Storage tank (capacity 3 l)
2            Sight-glass
5            Name plate
6            Filter and breather

Connections
A           to the mechanical seal
B           from the mechanical seal
C           filling

(5)Recommended applications
• Chemical industry
• Food and beverage industry
• Pharmaceutical industry

Dead-end quench (Plan 51):
Quench fluid from an elevated tank. The
characteristic feature of this principle is
that no heat is dissipated by the system.

Circulation (Plan 52):
Quench fluid from an elevated tank;
external tank, pressureless; thermosiphon
or forced circulation. In this case heat
is dissipated by the circulation. Cooling
capacity by convection is minimal,however.

Install the quench fluid tank approx. 1 ... 2 m
 (3.3 ... 6.6 ft) above the mechanical seal.
 Install connection pipes to the mechanical
 seal with low flow resistance. Pipes must
 vent automatically in the direction of the
 tank. It is imperative that air pockets are
 prevented. The minimum filling level must
 always be above the connection socket at
 the side (in the case of the thermosiphon
 principle). Quench fluid systems can be
 operated in two different modes.

We have large stock, so our delivery  is very fast.
For example,if products are standarded, the delivery time is one week.
Our company and factory addrss: Ningbo City, Zhejiang  Province,China.
Our city has a large port and an airport, so its transportation is very convenient.

Question1: What are the prices of your products?
  Answer: For each model, the unit price is listed on the website, but what is displayed on the website is only the average market price. For specific models, you can contact us for further consultation and negotiation.

  Question 2: Are you a factory or a trade company?
  Answer: We are a factory with top sales for the trade service.
Question 3: What is the minimum order quantity for each order?
  Answer: For products of regular models, the minimum order quantity is at least five. We welcome you to test the quality of our products and services through placing trial orders. Looking forward to the long-term cooperation with you.

  Question4: What is your company's service tenet?
  Answer: Quality first, service upmost. We promises that if there is any problem with the quality of the product, or if the product is damaged during the transportation, our company will be responsible for compensation, regardless of the ordder turnover value.

  Question5: Can I try to get a SAMPLE before the order?
  Answer: Sure. Our company will provide you with samples for free, but you will have to pay for the international delivery (freight collect payment).