QBY/QBY3/BQG Diaphragm Pump Balls and Seats

Description

Diaphragm Pump Balls and Seats for Replacement and Maintenance

IKSONIC supplies diaphragm pump balls and seats for maintenance and replacement enquiries involving QBY, QBY3 and BQG pump configurations. The range includes 40 listed choices: individual balls, individual ball seats and selected multi-component options. As a China-based supplier, IKSONIC welcomes wholesale enquiries from maintenance teams, equipment buyers and distributors.

Choose the component, material, dimensions and profile together. A ball and a ball seat are separate parts, and an individual option does not include both unless the table expressly lists them together. The 40 rows are alternative order options, not a 40-piece set.

Materials and Component Choices

• NBR (nitrile rubber): Three QBY ball options and three QBY ball-seat options, with separate listed sizes for each component.
• PTFE (polytetrafluoroethylene): Ball and seat options for several QBY, QBY3 and ARO/BQG references, plus specific plastic-pump seat configurations. A PTFE seat does not establish the material of an accompanying sealing ring.
• Santoprene-type elastomer: Ball and seat options listed for ARO/BQG-50 and ARO/BQG-80 references. Confirm the exact compound required; this description does not certify branded resin origin.
• Plastic and mixed-component options: A plastic QBY-50 pump seat and QBY3 seat-sleeve combinations are listed. The precise plastic grade and the materials of other included components are not specified. The QBY-15 ball-and-seat-sleeve option also requires material confirmation.

No pressure, temperature, flow, chemical-resistance or service-life rating is specified here. Confirm the pumped medium and operating conditions before selecting a material. Similar appearance or a shared pump-family reference does not establish interchangeability.

Match the Ball, Seat and Pump Configuration

Check the pump nameplate and compare the replacement with the existing component. For a ball, provide the measured diameter. For a seat or sleeve, provide the outer and inner dimensions, height, profile and any step or seal-groove details. Clear photographs help distinguish components that share a model reference but differ in construction.

The listed QBY-25/40 NBR ball is 42 mm, while the PTFE ball is 40 mm. Different materials can have different listed sizes, so do not substitute a component solely because its pump reference matches. Some dimensions also differ between the option labels and the reference chart; the affected rows are expressly marked for confirmation below.

The QBY-25/40 PTFE seat with a small-step profile and 57 mm listing is a separate option from the PTFE seat labelled 68 mm, whose actual size requires confirmation. Confirm the required profile and full dimensions. QBY and QBY3 references also remain distinct.

Complete 40-Option Model and Size List

Options appear below in catalogue order. Sizes are reproduced as listed, rather than presented as complete dimensional drawings. Where a size or material is not specified, confirm it before ordering. Sealing rings, sleeves, retaining plates and balls are included only where expressly named for that option.

Compatibility references: ARO names identify the intended replacement reference only. These products are not represented as genuine ARO/OEM parts, and no brand affiliation or universal compatibility is claimed. Verify the exact pump model and component dimensions.

No.	Pump model / configuration reference	Component / included parts	Material	Listed size / designation
1	QBY-25/40	Ball	NBR (nitrile rubber)	42 mm
2	QBY-25/40	Ball seat	NBR (nitrile rubber)	68 mm option label; actual size to be confirmed
3	QBY-50/65	Ball	NBR (nitrile rubber)	62 mm
4	QBY-50/65	Ball seat	NBR (nitrile rubber)	101 mm option label; actual size to be confirmed
5	QBY-80/100	Ball	NBR (nitrile rubber)	70 mm
6	QBY-80/100	Ball seat	NBR (nitrile rubber)	110 mm
7	QBY-25/40	Ball	PTFE	40 mm
8	QBY-25/40	Ball seat	PTFE	68 mm option label; actual size to be confirmed
9	QBY-50/65	Ball	PTFE	57 mm option label; actual size to be confirmed
10	QBY-50/65	Ball seat	PTFE	99 mm
11	QBY-80/100	Ball	PTFE	70 mm option label; actual size to be confirmed
12	QBY-80/100	Ball seat	PTFE	110 mm
13	QBY3-25	Ball	PTFE	25 mm option label; model fit to be confirmed
14	QBY3-25	Ball seat	PTFE	34.5 mm option label; size and model fit to be confirmed
15	QBY3-40	Ball	PTFE	37 mm
16	QBY3-40	Ball seat	PTFE	53 mm
17	QBY3-50	Ball	PTFE	45 mm
18	QBY3-50	Ball seat	PTFE	65 mm
19	QBY3-80	Ball	PTFE	57 mm
20	QBY3-80	Ball seat	PTFE	93 mm
21	ARO/BQG-25	Ball	PTFE	25 mm
22	ARO/BQG-25	Ball seat with sealing ring	PTFE seat; ring material not specified	Not specified
23	ARO/BQG-40	Ball	PTFE	45 mm
24	ARO/BQG-40	Ball seat with sealing ring	PTFE seat; ring material not specified	Not specified
25	ARO/BQG-50	Ball	PTFE	63 mm
26	ARO/BQG-50	Ball seat	PTFE	Not specified
27	ARO/BQG-80	Ball	PTFE	82 mm
28	ARO/BQG-80	Ball seat	PTFE	Not specified
29	ARO/BQG-50	Ball	Santoprene-type elastomer	63 mm
30	ARO/BQG-50	Ball seat	Santoprene-type elastomer	Not specified
31	ARO/BQG-80	Ball	Santoprene-type elastomer	82 mm
32	ARO/BQG-80	Ball seat	Santoprene-type elastomer	Not specified
33	Pump model not specified	Ball	PTFE	32 designation; unit not specified
34	QBY-50 plastic pump	Ball seat	Plastic; polymer not specified	Not specified
35	QBY-50 plastic pump	Ball seat	PTFE	Not specified
36	QBY-15	Ball + ball-seat sleeve	Not specified	Not specified
37	ARO plastic size-40 pump	Ball seat	PTFE	Not specified
38	QBY-25/40	Ball seat, small-step profile	PTFE	57 mm
39	QBY3-15/20/25	Seat sleeve + retaining plate	Plastic seat sleeve; plate material not specified	Not specified
40	QBY3-15/20/25	Seat sleeve + retaining plate + ball	Plastic seat sleeve; plate and ball materials not specified	Not specified

Dimensions requiring confirmation: Rows 2 and 8 retain the QBY-25/40 seat option label of 68 mm, while the reference chart shows 72. Row 4 retains the QBY-50/65 NBR seat label of 101 mm, while the chart shows 99. Row 9 retains the QBY-50/65 PTFE ball label of 57 mm, while the chart shows 58. Row 11 retains the QBY-80/100 PTFE ball label of 70 mm, while the chart shows 68. The chart does not state units. These differences are unresolved: confirm the actual dimensions before ordering rather than treating either label as a verified substitute.

QBY3 model references requiring confirmation: Rows 13 and 14 are labelled QBY3-25, with 25 mm and 34.5 mm option sizes. The reference chart instead assigns values 25 and 35, without units, to QBY3-15/20. These model references are not treated as interchangeable. Confirm both the required model fit and the seat dimensions; no additional QBY3 model options have been inferred from the chart.

Included sealing rings: Only rows 22 and 24 expressly list a sealing ring with the PTFE seat. No sealing-ring material is stated. Do not assume a ring is included with the other seat options.

Unspecified designation: Row 33 is listed as a PTFE ball with the designation 32. The listing gives no unit and does not establish whether 32 is a dimension or model identifier. Confirm its meaning and the actual ball diameter before ordering.

Multi-component choices: Row 36 lists a QBY-15 ball with a ball-seat sleeve. Row 39 lists a QBY3-15/20/25 plastic seat sleeve with a retaining plate, while row 40 additionally lists a ball. Confirm the assembly profile, individual component materials and required quantities; these options are not described as complete pump repair kits.

Wholesale Enquiries and Ordering

For a quotation, provide the selected row or full option name, required quantity, pump model, measured dimensions and photographs of the existing part. Specify the material required and any application documentation needed. Confirm the contents and quantity for each order line, along with current availability and lead time.

Custom PTFE ball size enquiries are welcome. Provide the requested diameter and application details so feasibility, specification and quotation can be confirmed; no custom size range, tolerance or delivery time is assumed.

Prices are supplied by enquiry. Contact IKSONIC for China supply and wholesale diaphragm pump balls and seats. Include all dimensional and operating requirements so the proposed replacement can be checked before the order is confirmed.

Frequently Asked Questions

Does every option include both a ball and a seat?

No. Most rows describe an individual component. Row 36 expressly lists a ball and ball-seat sleeve. Row 40 lists a seat sleeve, retaining plate and ball. Check the selected row rather than assuming a complete set.

Do all PTFE ball seats include a sealing ring?

No. Sealing rings are expressly listed only for the ARO/BQG-25 and ARO/BQG-40 PTFE seat options in rows 22 and 24. The sealing-ring material is not specified.

Are ARO-referenced options genuine OEM products?

They are listed as replacement references, not as genuine ARO/OEM products. Confirm fit against the exact pump and existing component before ordering.

Is the option labelled 32 a 32 mm PTFE ball?

The unit and meaning of 32 are not stated. Confirm the actual diameter and pump fit rather than assuming 32 mm.

Can I choose a material from the pump model alone?

No. Match the material, component dimensions, assembly profile and operating conditions. Several pump references have different listed sizes for different materials, and a material change is not automatically a like-for-like replacement.

What should I do if a size is marked for confirmation?

Send the complete option label, pump details and measured dimensions with your enquiry. The option label is retained to identify the choice, but the actual dimensions or model fit remain unconfirmed where the catalogue references differ.

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