66 BT-AR Mechanical Seals for Pumps Pusher Seals

(1) Features  
•Single and dual seal
•Short axial installation length
•Protection of the shaft along the whole length of the seal
•Material approvals available


(2) Advantages
The BT-AR is the "small seal for large pump series", a
mechanical seal for mass produced water pumps. Its key
feature is the short axial installation length. This allows
pumps to be built economically. The compact design of
BT-AR seals assures reliable and durable sealing. The
elasticity of the bellows design makes it possible to cope
with robust operating conditions.


(3) Operating  range  (see  note  on  page  1)
Shaft diameter: d1 = 6 ... 60 mm (0.24".....2.4")
Pressure: p1* = 6 bar (87 PSI),
vacuum.....0.5 bar
(up to 1 bar with seat locking)
Temperature: t* = -20 °C ... +120 °C (-4 °F.....+248 °F)
Sliding velocity: vg = 10 m/s (33 ft/s)
* Depending on medium, size and material


(4) Materials
Seal face: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B, B3),
Silicon carbide (Q1, Q6), Tungsten carbide (U)*,
PTFE glass fiber reinforced (Y)
Seat: Steatite (X), Aluminium oxide (V, V1),
Silicon carbide (Q1, Q6), Tungsten carbide (U)*
Elastomer: NBR (P), EPDM (E), FKM (V), HNBR (X4)
Metal parts: 1.4571 (G), 1.4301 (F), 1.4401 (G),
1.4057 (F1)*
*) Only for BT-AR3


(5)Standards and approvals  
•Material approvals: KTW, W270, ACS, WRAS, NSF61, FDA.


(6) Recommended applications    
•Water and waste water technology
•Food and beverage industry
•Water and waste water
•Beverages and foodstuffs
•Domestic and garden pumps
•Whirlpool and swimming pool pumps
•Dishwasher pumps
•Submersible motors/pumps
•Water pumps


(7) Item         Description    
1               Seal face
2               Seat
3               Bellows
3a             Corner sleeve
4               Spring
5               Drive collar
5a             Locking ring
5b             Collar


(8)Product variant
BT-AR3
Seal faces made of tungsten carbide (U). Elastomers
and diameter range same as BT-AR. The BT-AR3 is the
right choice when the seal has to be used in high duty
applications or where the seal faces could be damaged
by abrasives (waste water).

BT-AR3

Dimensions in mm

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).