Mechanical Seal Vs M7n, M74, Mtu Dr1-D

• Structure: Single End
• Pressure: ≤1.6MPa
• Speed: ≤20m/S
• Temperature: -30ºC~+200ºC
• Standard: Standard
• Balance: Unbalanced
• Model NO.: M7N, M74
• Rotary Ring: Sic/Tc/Carbon
• Stationary Ring: Carbon/Sic/Tc
• Secondary Seai: Viton/Encapsulated Ring
• Metal Parts: SUS304/SUS316
• Spring: 17-7pH/SUS304/SUS316
• Stationary Seats Options: G9, G4, G6, G13
• Shipment Terms: Fob Shanghai/Ningbo
• Transport Package: Trisun Standard or Customised
• Specification: 14mm~100mm
• Trademark: Trisun, Nuetral, customised
• Origin: Made in China
• HS Code: 8484200090
• Production Capacity: 1, 000, 000 PCS/Year

Product Description

Our Mechanical seal model  M7N can Replace M7N and MTU DR1-D,which is widely used for industrial pumps.  
The normal material combination include SIC/RESIN CARBON/NBR/SS304,sic/sic/nbr/ss304,tc/tc/nbr/ss316 and so on.
we also can make changes as customers'requirement or totally design a new type of mechanical seal to meet clients' needs.

TS M7N TSM74 TSM74F

Operating Limits:

Pressure: ≤1.6MPa

Speed: ≤20m/s

Temperature: -30ºC~+200ºC

 

Rotary Ring (SiC/TC/Carbon)

Stationary Ring (Carbon/SiC/TC)

Secondary SeaI (VITON/Encapsulated Ring)

Metal Parts (SUS304/SUS316)

Spring (17-7PH/SUS304/SUS316)

 

For the G4 / G6 / G9 / and G13 seats refer to the "Stationary Seats Dimensional Data" table at the front of the
catalog.
 

Features

• For plain shafts
• Single seal
• Unbalanced
• Super-Sinus-spring (M7N) or multiple springs rotating (M74)
• Independent of direction of rotation
• Variant with PTFE secondary seals for high chemical resistance (M78N)

Advantages

• Universal application opportunities
• Efficient stock keeping due to easily interchangeable faces
• Extended selection of materials
• Insensitive to low solids contents
• Flexibility in torque transmissions
• Self cleaning effect
• Short installation length possible (G16)
• Pumping screw for media with higher viscosity (M74F)

Seal size  d(mm)	d3	d6	d7	l1	l3		Seal size  d(mm)	d3	d6	d7	l1	l3
14	25	21	25	35.0	10.0		48	65	59	66	45.0	14.0
16	27	23	27	35.0	10.0		50	67	62	70	47.5	15.0
18	33	29	33	37.5	11.5		53	70	65	73	47.5	15.0
20	35	29	35	37.5	11.5		55	72	67	75	47.5	15.0
22	37	31	37	37.5	11.5		58	79	70	78	52.5	15.0
24	39	33	39	40.0	11.5		60	81	72	80	52.5	15.0
25	40	34	40	40.0	11.5		63	84	75	83	52.5	15.0
28	43	37	43	42.5	11.5		65	86	77	85	52.5	15.0
30	45	39	45	42.5	11.5		68	89	81	90	52.5	18.0
32	47	42	48	42.5	11.5		70	91	83	92	60.0	18.0
33	48	42	48	42.5	11.5		75	99	88	97	60.0	18.0
35	50	44	50	42.5	11.5		80	104	95	105	60.0	18.2
38	55	49	56	45.0	14.0		85	109	100	110	60.0	18.2
40	57	51	58	45.0	14.0		90	114	105	115	65.0	18.2
43	60	54	61	45.0	14.0		95	119	110	120	65.0	17.2
45	62	56	63	45.0	14.0		100	124	115	125	65.0	17.2