16 H7N Mechanical Seals for Pumps Pusher Seals

• Customization: Available
• Structure: Single End
• Pressure: High Pressure Mechanical Seals
• Model NO.: 16 H7N
• Speed: Ultra-High-Speed Mechanical Seal
• Temperature: High Temperature Mechanical Seal
• Performance: Corrosion
• Standard: Standard
• Type: Custom-Made, TS
• Balance: Balanced
• Payment Method: T/T, Western Union, L/C etc
• Replace: Bergman Seals
• Export Port: Ningbo Port, Shanghai Port
• Products Packaging: White Box
• Min Order Qty: 5 Pcs
• Transport Package: Carton Packing
• Specification: Diameter Size 14-200mm
• Trademark: Custom-made, TS
• Origin: Made in China
• HS Code: 8484200090
• Production Capacity: 1000000 PCS/Year
• Package Size: 38.00cm * 38.00cm * 32.00cm
• Package Gross Weight: 22.000kg

Product Description

Product Description

(1)Features

• For stepped shafts
• Single seal
• Balanced
• Super-Sinus-spring or multiple springs rotating
• Independent of direction of rotation
• Integrated pumping device available (H7F, H75F)
• Variant with seat cooling available (H75G115)

(2)Advantages
• Universal application opportunities (standardization)
• Efficient stock keeping due to easily interchangeable faces
• Extended selection of materials
• Flexibility in torque transmissions
• Self cleaning effect
• Short Installation length possible (G16)

(3)Operating range (see note on page 1)
Shaft diameter: d1 = 14 ... 100 mm (0.55" ... 3.94")
(Single spring: d1 = max. 100 mm (3.94"))
Pressure: 
p1 = 80 bar (1,160 PSI) for d1 = 14 ... 100 mm,
p1 = 25 bar (363 PSI) for d1 = 100 ... 200 mm,
p1 = 16 bar (232 PSI) for d1 > 200 mm
Temperature: t = -50 °C ... +220 °C (-58 °F ... +428 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Axial movement: 
d1 ... 22 mm: ±1.0 mm
d1 24 ... 58 mm: ±1.5 mm
d1 from 60 mm: ±2.0 mm

(4)Materials
Seal face: Silicon carbide (Q1, Q2), Carbon graphite 
antimony impregnated (A), Aluminium oxide (V), 
Special cast CrMo steel (S)
Seat G9: Carbon graphite antimony impregnated (A), 
Carbon graphite resin impregnated (B), 
Silicon carbide (Q1*, Q2*) 
Secondary seals: EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: CrNiMo steel (G)
Metal parts: CrNiMo steel (G), Duplex (G1)
* Cannot be combined with seal face in S

(5)Standards and approvals
• EN 12756

(6)Recommended applications
• Refining technology
• Power plant technology
• Petrochemical industry
• Oil and Gas industry
• Hot water applications
• Light hydrocarbons
• Boiler feed pumps
• Process pumps

(7)Item        Part no.to DIN 24250           Description
     1.1          472                                        Seal face
     1.2          485                                        Drive collar
     1.3          474                                        Thrust ring
     1.4          412.1                                     O-Ring
     1.5          477                                        Spring
     1.6          904                                        Set screw
     2             475                                        Seat G9
     3             412.2                                     O-Ring

(8)Product variants

H75
Shaft diameter: d1 = 28 ... 200 mm (1.10" ... 7.87")
As H7N, but with multiple springs in sleeves (Item no. 1.5) 
Axial movement: ±2 ... 4 mm, dependent on diameter.

H76
Shaft diameter: d1 = 14 ... 100 mm (0.55" ... 3.94")
Dimensions, items and descriptions as for H7N, but with 
special single spring (Item no. 1.5) for compensating large 
axial movements (±4 mm).

H7F
Shaft diameter: d1 = max. 100 mm (3.94")
Dimensions, items and descriptions as for H7N, but with 
single spring and pumping screw. Dependent on direction 
of rotation! (Viscosity ≤ ISO VG10).

H75F
Shaft diameter: d1 = 28 ... 200 mm (1.10" ... 7.87")
Dimensions, items and descriptions as for H7N, but 
with multiple springs and pumping screw. Dependent on 
direction of rotation! (Viscosity ≤ ISO VG10).

(9)Seat   alternatives
 

H7N

 

Detailed Photos

 

Product Structure Size

Dimensions in mm

d1	d2	d3	d6	d7	d8	d24	d21	d22	ds	L1k	L1n	L2	L3	L5	L6	L7	L8	L9	L39	L40	a	b	e	f	h1	h2	k	mx	umax.	t
14*	18.0	33.0	21.0	25.0	3.0	20.0	-	-	38.0	42.5	-	18.0	32.5	1.5	4.0	8.5	17.5	10.0				5.0		6.0				M5	9.0	1.1
16*	20.0	35.0	23.0	27.0	3.0	22.0	-	-	40.0	42.5	-	18.0	32.5	1.5	4.0	8.5	17.5	10.0	-	-	-	5.0	-	6.0	-	-	-	M5	9.0	1.1
18*	22.0	37.0	27.0	33.0	3.0	24.0	-	-	42.0	45.0	55.0	20.0	33.5	2.0	5.0	9.0	19.5	11.5	-	-	-	6.0	-	7.0	-	-	-	M5	9.0	1.5
20*	24.0	39.0	29.0	35.0	3.0	26.0	-	-	44.0	45.0	60.0	20.0	33.5	2.0	5.0	9.0	19.5	11.5	-	-	-	6.0	-	5.5	-	-	-	M5	9.0	1.5
22*	26.0	41.0	31.0	37.0	3.0	28.0	-	-	45.0	45.0	60.0	20.0	33.5	2.0	5.0	9.0	19.5	11.5	-	-	-	6.0	-	8.0	-	-	-	M5	9.0	1.5
24*	28.0	43.0	33.0	39.0	3.0	30.0	-	-	47.0	47.5	60.0	20.0	36.0	2.0	5.0	9.0	19.5	11.5	-	-	-	6.0	-	5.5	-	-	-	M6	9.0	1.5
25*	30.0	45.0	34.0	40.0	3.0	32.0	-	-	49.0	47.5	60.0	20.0	36.0	2.0	5.0	9.0	19.5	11.5	-	-	-	6.0	-	5.5	-	-	-	M6	9.0	1.5
28*	33.0	48.0	37.0	43.0	3.0	35.0	44.65	50.57	51.0	50.0	65.0	20.0	38.5	2.0	5.0	9.0	19.5	11.5	24.0	8.5	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
30*	35.0	50.0	39.0	45.0	3.0	37.0	47.83	53.75	54.0	50.0	65.0	20.0	38.5	2.0	5.0	9.0	19.5	11.5	24.5	9.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
32*	38.0	55.0	42.0	48.0	3.0	40.0	47.83	53.75	59.0	50.0	65.0	20.0	38.5	2.0	5.0	9.0	19.5	11.5	24.5	9.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
33*	38.0	55.0	42.0	48.0	3.0	40.0	47.83	53.75	59.0	50.0	65.0	20.0	38.5	2.0	5.0	9.0	19.5	11.5	24.5	9.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
35*	40.0	57.0	44.0	50.0	3.0	42.0	51.00	56.92	61.0	50.0	65.0	20.0	38.5	2.0	5.0	9.0	19.5	11.5	24.5	9.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
38*	43.0	60.0	49.0	56.0	4.0	45.0	54.18	60.10	65.0	52.5	75.0	23.0	38.5	2.0	6.0	9.0	22.0	14.0	26.0	11.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
40*	45.0	62.0	51.0	58.0	4.0	47.0	60.53	66.45	66.0	52.5	75.0	23.0	38.5	2.0	6.0	9.0	22.0	14.0	26.0	11.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
43*	48.0	65.0	54.0	61.0	4.0	50.0	63.70	69.62	69.0	52.5	75.0	23.0	38.5	2.0	6.0	9.0	22.0	14.0	26.0	11.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
45*	50.0	67.0	56.0	63.0	4.0	52.0	63.70	69.62	71.0	52.5	75.0	23.0	38.5	2.0	6.0	9.0	22.0	14.0	26.0	11.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
48*	53.0	70.0	59.0	66.0	4.0	55.0	66.88	72.80	75.0	52.5	85.0	23.0	38.5	2.0	6.0	9.0	22.0	14.0	26.0	11.0	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
50*	55.0	72.0	62.0	70.0	4.0	57.0	70.05	75.97	76.0	57.5	85.0	25.0	42.5	2.5	6.0	9.0	23.0	15.0	26.5	12.5	24.0	6.0	8.0	8.0	6.6	22.6	9.0	M6	12.0	1.5
53*	58.0	79.0	65.0	73.0	4.0	60.0	76.40	82.32	83.0	57.5	85.0	25.0	42.5	2.5	6.0	9.0	23.0	15.0	26.5	12.5	24.0	8.0	8.0	9.0	6.6	22.6	9.0	M8	12.0	1.9
55*	60.0	81.0	67.0	75.0	4.0	62.0	76.40	82.32	85.0	57.5	85.0	25.0	42.5	2.5	6.0	9.0	23.0	15.0	28.5	12.5	26.0	8.0	8.0	9.0	6.6	24.6	11.0	M8	12.0	1.9
58*	63.0	84.0	70.0	78.0	4.0	65.0	79.58	85.50	88.0	62.5	85.0	25.0	47.5	2.5	6.0	9.0	23.0	15.0	28.5	12.5	26.0	8.0	8.0	9.0	6.6	24.6	11.0	M8	15.0	1.9
60*	65.0	86.0	72.0	80.0	4.0	67.0	82.75	88.67	95.0	62.5	95.0	25.0	47.5	2.5	6.0	9.0	23.0	15.0	28.5	12.5	26.0	8.0	8.0	9.0	6.6	24.6	11.0	M8	15.0	1.9
63*	68.0	89.0	75.0	83.0	4.0	70.0	85.93	91.85	93.0	62.5	95.0	25.0	47.5	2.5	6.0	9.0	23.0	15.0	28.5	12.5	26.0	8.0	8.0	9.0	6.6	24.6	11.0	M8	14.0	1.9
65*	70.0	91.0	77.0	85.0	4.0	72.0	85.93	91.85	95.0	62.5	95.0	25.0	47.5	2.5	6.0	9.0	23.0	15.0	28.5	12.5	26.0	8.0	8.0	9.0	6.6	24.6	11.0	M8	15.0	1.9
70*	75.0	99.0	83.0	92.0	4.0	77.0	89.10	95.02	105.0	70.0	95.0	28.0	52.0	2.5	7.0	9.0	26.0	18.0	30.5	14.5	26.0	8.0	8.0	10.0	6.6	24.6	11.0	M8	15.0	1.9
75*	80.0	104.0	88.0	97.0	4.0	82.0	98.63	104.55	109.0	70.0	105.0	28.0	52.0	2.5	7.0	9.0	26.0	18.0	30.5	14.5	26.0	8.0	8.0	10.0	6.6	24.6	11.0	M8	15.0	1.9
80*	85.0	109.0	95.0	105.0	4.0	87.0	101.80	107.72	114.0	70.0	105.0	28.0	51.8	3.0	7.0	9.0	26.2	18.2	30.2	14.0	26.0	8.0	8.0	10.0	6.6	24.6	11.0	M8	15.0	1.9
85*	90.0	114.0	100.0	110.0	4.0	92.0	108.15	114.07	119.0	75.0	105.0	28.0	56.8	3.0	7.0	9.0	26.2	18.2	30.2	14.0	26.0	10.0	8.0	10.0	6.6	24.6	11.0	M8	18.0	2.3
90*	95.0	119.0	105.0	115.0	4.0	97.0	114.50	120.42	124.0	75.0	105.0	28.0	56.8	3.0	7.0	9.0	26.2	18.2	30.2	14.0	26.0	10.0	8.0	10.0	6.6	24.6	11.0	M8	18.0	2.3
95*	100.0	124.0	110.0	120.0	4.0	102.0	117.68	123.60	129.0	75.0	105.0	28.0	57.8	3.0	7.0	9.0	25.2	17.2	29.2	14.0	26.0	10.0	8.0	10.0	6.6	24.6	11.0	M8	18.0	2.3
100*	105.0	129.0	115.0	125.0	4.0	107.0	124.03	129.95	134.0	75.0	105.0	28.0	57.8	3.0	7.0	9.0	25.2	17.2	29.2	14.0	26.0	10.0	8.0	10.0	6.6	24.6	11.0	M8	18.0	2.3
105*	115.0	148.0	122.2	134.3	5.0	118.0	128.98	134.90	153.0	73.0	-	32.0	53.0	2.0	10.0	-	30.0	20.0	29.2	15.2	26.0	10.0	8.0	10.0	6.6	24.6	11.0	M8	18.0	2.3
110*	120.0	153.0	128.2	140.3	5.0	123.0	135.30	141.20	158.0	73.0	-	32.0	53.0	2.0	10.0	-	30.0	20.0	32.5	14.5	30.0	10.0	9.5	10.0	6.6	28.6	13.0	M8	18.0	2.3
115*	125.0	158.0	136.2	148.3	5.0	128.0	140.30	146.20	163.0	73.0	-	32.0	53.0	2.0	10.0	-	30.0	20.0	32.5	14.5	30.0	10.0	9.5	10.0	6.6	28.6	13.0	M8	18.0	2.3
120*	130.0	163.0	138.2	150.3	5.0	133.0	145.30	151.20	168.0	73.0	-	32.0	53.0	2.0	10.0	-	30.0	20.0	32.5	14.5	30.0	10.0	9.5	10.0	6.6	28.6	13.0	M8	18.0	2.3
125*	135.0	168.0	142.2	154.3	5.0	138.0	150.30	156.20	173.0	73.0	-	32.0	53.0	2.0	10.0	-	30.0	20.0	32.5	14.5	30.0	10.0	9.5	10.0	6.6	28.6	13.0	M8	18.0	2.3
130*	140.0	173.0	146.2	158.3	5.0	143.0	155.30	161.20	178.0	73.0	-	32.0	53.0	2.0	10.0	-	30.0	20.0	32.5	14.5	30.0	10.0	9.5	10.0	6.6	28.6	13.0	M8	18.0	2.3
135*	145.0	178.0	152.2	164.3	5.0	148.0	160.30	166.20	183.0	73.0	-	32.0	53.0	2.0	10.0	-	30.0	20.0	32.5	14.5	30.0	10.0	9.5	10.0	6.6	28.6	13.0	M8	18.0	2.3
140*	150.0	183.0	156.2	168.3	5.0	153.0	165.30	171.20	188.0	73.0	-	32.0	53.0	2.0	10.0	-	30.0	20.0	32.5	14.5	30.0	10.0	9.5	10.0	6.6	28.6	13.0	M8	18.0	2.3
145*	155.0	191.0	161.2	173.3	5.0	158.0	172.30	178.20	196.0	83.0	-	34.0	63.0	2.0	10.0	-	30.0	20.0	34.5	16.5	32.0	12.0	10.0	12.0	7.1	30.1	14.0	M8	22.0	2.1
150*	160.0	196.0	168.2	180.3	5.0	163.0	177.30	183.20	201.0	85.0	-	36.0	63.0	2.0	10.0	-	32.0	22.0	34.5	16.5	32.0	12.0	10.0	12.0	7.1	30.1	14.0	M8	22.0	2.1
155*	165.0	201.0	173.2	185.3	5.0	168.0	182.30	188.20	206.0	87.0	-	38.0	63.0	2.0	12.0	-	34.0	24.0	34.5	16.5	32.0	12.0	10.0	12.0	7.1	30.1	14.0	M8	22.0	2.1
160*	170.0	206.0	178.2	190.3	5.0	173.0	187.30	193.20	211.0	87.0	-	38.0	63.0	2.0	12.0	-	34.0	24.0	34.5	16.5	32.0	12.0	10.0	12.0	7.1	30.1	14.0	M8	22.0	2.1
165*	175.0	211.0	183.2	195.3	5.0	178.0	192.30	198.20	216.0	87.0	-	38.0	63.0	2.0	12.0	-	34.0	24.0	34.5	16.5	32.0	12.0	10.0	12.0	7.1	30.1	14.0	M8	22.0	2.1
170*	180.0	216.0	188.2	200.3	5.0	183.0	197.30	203.20	221.0	87.0	-	38.0	63.0	2.0	12.0	-	34.0	24.0	37.0	16.5	34.5	12.0	10.0	12.0	7.1	32.1	16.0	M8	22.0	2.1
175*	185.0	221.0	193.2	205.3	5.0	188.0	202.30	208.20	226.0	87.0	-	38.0	63.0	2.0	12.0	-	34.0	24.0	37.0	16.5	34.5	12.0	10.0	12.0	7.1	32.1	16.0	M8	22.0	2.1
180*	190.0	226.0	207.5	219.3	5.0	193.0	207.30	213.20	231.0	91.0	-	42.0	63.0	2.0	12.0	-	38.0	28.0	37.0	16.5	34.5	12.0	10.0	12.0	7.1	32.1	16.0	M8	22.0	2.1
185*	195.0	231.0	212.5	224.3	5.0	198.0	212.30	218.20	236.0	91.0	-	42.0	63.0	2.0	12.0	-	38.0	28.0	37.0	16.5	34.5	12.0	10.0	12.0	7.1	32.1	16.0	M8	22.0	2.1
190*	200.0	236.0	217.5	229.3	5.0	203.0	217.30	223.20	241.0	91.0	-	42.0	63.0	2.0	12.0	-	38.0	28.0	37.0	16.5	34.5	12.0	10.0	12.0	7.1	32.1	16.0	M8	22.0	2.1
195*	205.0	245.0	222.5	234.2	5.0	208.0	225.30	231.20	250.0	94.0	-	43.0	66.0	2.0	12.0	-	38.0	28.0	37.0	17.5	34.5	12.0	10.0	14.0	7.1	32.1	16.0	M10	22.0	2.1
200*	210.0	250.0	227.5	239.3	5.0	213.0	230.30	236.20	255.0	94.0	-	43.0	66.0	2.0	12.0	-	38.0	28.0	37.0	17.5	34.5	12.0	10.0	14.0	7.1	32.1	16.0	M10	22.0	2.1

* EN 12756

Packaging & Shipping

 

Our Advantages

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.

FAQ

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).