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SANDPIPER OEM ODM Plastic Diaphragm Pump Spare Parts Check Valve Ball
Product Details
Model NO.:
Check Valve Ball
Suitable Brand:
Sandpiper
Pump Package:
Carton And Wooden Cases
Testing:
Dynamic Balancing
Types Of Welding Parts:
OEM/ODM
Material:
Santoprene / PTFE / Buna-N / Viton / EPDM / Neopre
Certificate:
ISO9001:2015, ISO14001:2004
Mould:
Investment Casting Mould, Plastic Die-Casting Mold
Pump Model.:
B05m / B10m / B15m / B20m / B30m
Transport Package:
Carton And Wooden Cases
Specification:
According To The Drawings
Trademark:
Vinsome
Origin:
China
HS Code:
84139100
Production Capacity:
10, 000 Tons Per Year
Highlight:
plastic diaphragm pump check valve
,Sandpiper pump spare parts
,ODM diaphragm pump ball valve
Payment & Shipping Terms
Minimum Order Quantity
1
Price
50
Product Description
SANDPIPER Check Valve Ball – Pump Valve Ball Replacement for AODD Pumps
About Dongguan HydroBlue Co., Ltd.
DONGGUAN HydroBlue CO.,LTD. is a professional provider of overall technical solutions in the fields of fluid machinery and fluid engineering, industrial equipment automation, and frequency converters. The company has multi-professional technical talents, including a total of 8 professional technical talents in fluid engineering, electrical engineering, and electronic engineering. The company has long-term professional and technical cooperation with Jiangsu University, Chinese Academy of Sciences, and Guangdong University of Technology: Jiangsu University National Research Center of Pumps provides check valve flow dynamics and ball seating analysis for SANDPIPER AODD pump valve ball performance optimization; Chinese Academy of Sciences contributes advanced polymer and elastomer compound research for high-durability check ball materials; Guangdong University of Technology supports automated ball dimensional inspection and surface finish measurement for consistent valve ball quality.
Share your pump model and valve ball requirements with us — our engineering team will confirm compatibility and provide a detailed technical response.
OUR BRANDS & SERVICES
Our proprietary brand delivers complete technical solutions for fluid machinery and engineering systems. We specialize in industrial control and drive equipment, mechanical seals, and international field engineering support. Through our ecosystem of specialized technologies and product brands, we provide clients with high-level technical advisory, commercial support, and integrated product solutions — including pumps, variable frequency converters, servo drives, PLC-HMI interfaces, industrial control cabinets, motors, mechanical seals and assemblies, couplings, gearboxes, and turnkey engineering services (overseas on-site 3D scanning reverse molding for pump replacement parts and equipment debugging by our dispatched engineers abroad).
Product Overview
SANDPIPER Check Valve Ball (also called the valve ball, check ball, or ball check valve) is the spherical sealing element inside the suction and discharge check valve assemblies of air-operated double-diaphragm (AODD) pumps. Each SANDPIPER pump uses four check valve balls — two on the suction side (one per chamber) and two on the discharge side (one per chamber).
During operation, the check ball lifts off its seat during the suction or discharge stroke to allow flow, and returns to the seat during the opposite stroke to prevent backflow. The ball must be perfectly spherical, have consistent density for uniform seating, and be resistant to chemical attack, abrasion, and deformation under pressure.
SANDPIPER check valve balls are manufactured in a variety of materials: elastomer balls (Buna-N, Neoprene, EPDM, FKM) for general chemical service, thermoplastic balls (PTFE, Polypropylene, PVDF, HDPE) for corrosive fluids, and metal balls (SS 316, Hastelloy, Ceramic) for high-temperature, high-pressure, or highly abrasive service. The correct ball diameter and material must match the pump model and the specific fluid conditions.
Our SANDPIPER replacement check valve balls are precision-ground or molded to the specified diameter with tight spherical tolerance, surface finish verified, and material certified for the intended service.
Technical Specification
|
Category |
Details |
|---|---|
|
Product |
Check Valve Ball (Ball Check Valve Element) – SANDPIPER AODD pump replacement |
|
Application |
SANDPIPER S, SB, H, HF, ES, G, L series — 4 balls per pump (2 suction + 2 discharge) |
|
Ball Diameter |
Varies by pump model; common sizes 3/8" to 1-1/2" |
|
Spherical Tolerance |
±0.005" (elastomer); ±0.002" (thermoplastic & metal) |
|
Material |
NBR, Neoprene, EPDM, FKM, PTFE, Polypropylene, PVDF, HDPE, SS 316, Hastelloy C, Ceramic (Alumina/Zirconia) |
|
Hardness |
Elastomer: 50–90 Shore A; Thermoplastic: 55–85 Shore D; Metal: as-specified |
|
Temperature Range |
NBR: -20 to 100°C; EPDM: -30 to 120°C; FKM: -10 to 200°C; PTFE: -40 to 200°C; Metal: up to 400°C |
|
Standards |
ANSI, DIN, ISO, FDA (food-grade), 3A Sanitary |
|
Manufacturing |
Compression molding (elastomer), Injection molding (thermoplastic), Precision grinding (metal & ceramic) |
|
Inspection |
Diameter gauge, Spherical tolerance CMM, Hardness (durometer), Surface finish, Material cert |
|
Certificate |
ISO9001:2015, ISO14001:2004 |
|
Delivery |
5–15 days after deposit (standard materials) |
|
Payment |
70% TT in advance, balance against copy of B/L |
Check Valve Ball Material Selection
|
Material |
Density |
Temperature Limit |
Key Property |
Recommended SANDPIPER Service |
|---|---|---|---|---|
|
NBR (Buna-N) |
1.0–1.2 g/cc |
100°C |
Good oil resistance, resilient seating |
Oils, fuels, water, general industrial |
|
EPDM |
0.9–1.1 g/cc |
120°C |
Excellent water/steam resistance |
Hot water, steam, dairy, pharmaceutical |
|
FKM (Viton) |
1.8–1.9 g/cc |
200°C |
Excellent chemical resistance |
Aggressive chemicals, solvents, hot oils |
|
PTFE (Teflon) |
2.1–2.2 g/cc |
200°C |
Virtually inert, non-stick surface |
Ultra-pure chemicals, acids, aggressive service |
|
SS 316 |
8.0 g/cc |
400°C |
High strength, corrosion resistant |
High-pressure, high-temp, abrasive fluids |
|
Ceramic (Alumina) |
3.9 g/cc |
800°C |
Extreme hardness, wear & corrosion resistant |
Severe abrasion, high-temperature, slurry |
Why Choose Our SANDPIPER Check Valve Balls
- Spherical Precision — Balls are molded or ground to tight spherical tolerance, ensuring even sealing contact around the entire seat circumference
- Material Traceability — Each ball lot traceable to raw material batch; durometer hardness, specific gravity, and material certifications available
- Wide Size Range — We stock or produce check valve balls in all common SANDPIPER sizes and materials, with custom sizes available on request
- Surface Finish Control — Elastomer balls are flash-free; thermoplastic and metal balls are polished to specified surface finish to prevent seat leakage
- Sell as Matched Set — We supply replacement balls individually or as a set of 4 (complete pump) with matching seat assemblies
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Contact Us at Any Time
Room 1904, Building 1, Zhongtang Tianan Digital City, No.89 Jinyuan Road, Zhongtang Town,Dongguan City, Guangdong Province, China.
