FP Direct-Coupled Centrifugal Pump GB Standard

Our factory specializes in manufacturing all-plastic corrosion-resistant centrifugal and self-priming pumps in two materials — PVDF and FRPP — across four series (FV, FP, FVZ, FPZ).  PVDF pumps are suitable for handling strong acids, powerful oxidants, halogens, aromatic hydrocarbons, aliphatic compounds, and chlorinated solvents, with an operating temperature range of -40°C to +140°C.  FRPP pumps are ideal for strong alkalis as well as general acids, bases, salts, and their derivatives, with an operating temperature range of -40°C to +90°C.  The pumps are typically driven by energy-efficient Y-type motors. Explosion-proof motors can be provided upon request.  
If users have special requirements regarding flow rate, head, speed, or power, our factory offers technical support to deliver customized solutions.

App Temperature Bound List
Material        Medium temperature℃ Material Medium temperature℃
PVC-C -20℃~+95℃ PVC-U -5℃~+45℃
FRPP -20℃~+120℃ PPH -20℃~+110℃
PVDF 40℃~+150℃
Installation Maintenance

1. After long-distance transportation to the production site, the pump should be unpacked and inspected before installation to ensure all pump components are intact. Any loose fasteners should be retightened. Check the concentricity of the pump shaft and motor shaft and correct any looseness.

2. The pump body is entirely injection-molded from PVDF or FRPP resin. The output piping should have a support bracket or hanger, and the flange should not rely solely on pressure to withstand the pressure to prevent deformation and damage. Water loss should be minimized in the inlet piping, and no more than two 90° elbows should be used. FP and FV centrifugal pumps should have a foot valve installed at the front of the suction pipe to ensure that the pump body is filled with liquid before starting. A strainer should be installed at the suction pipe or foot valve inlet to prevent debris from being drawn into the pump body and ensure proper operation.

3. Bolts at the pump body connection points should be evenly tightened, and the inlet and outlet pipe connections should be tight and leak-proof. Otherwise, vacuum extraction will be affected, liquid may not be drawn, or flow or head may be insufficient.

Self-Priming Pump

 

Direct Connection Type Centrifugal Pump Assembly Detail Drawing

Part Material Table

No. Name Material
1 Inlet flange FRPP.PVDF
2 Sealing ring EPDM.FPM
3 Pump body FRPP.PVDF
4 Seal film EPDM.FPM
5 Sealing ring EPDM.FPM
6 Cooling water cover Steel
7 Double headed stud Steel,StainlessSteel
8 Suppot FRPP
9 Date plate Aluminium
10 The mechanical seal moves Sic
11 Cools the lid FRPP.PVDF
12 Mechanical seal static link Sic
13 Cover FRPP.PVDF
14 Sealing ring EPDM.FPM
15 Impeller shaft FRPP/ Steel PVDF Steel
16 Centrifugal pump pump body FRPP.PVDF



Self-Priming Pump

Dimension List                                                      Unit :mm

Type /Dimension

Dimension List

Inlet flange

Pump body

L

L1

L2

L3

H

H1

n-Φ2

D1

n-Φ

D2

4—Φ2

25F

p (D)-8

400

190

145

110

210

100

4-12

25

Shrinkage

25

Shrinkage

v

32F

p (D)-11

400

190

145

110

210

100

4-12

32

Shrinkage

25

Shrinkage

v

40F

p (D)-18

500

260

145

140

270

130

4-12

110

8-18

100

4-18

v

50F

p (D)-20

515

255

145

140

280

120

4-12

125

8-18

110

4-18

v

65F

p (D)-25

650

390

140

190

300

120

4-12

145

8-18

125

4-18

v

80F

p (D)-30

725

415

140

216

300

130

4-14

160

8-18

145

4-18

v

80F

p (D)-32

725

415

140

216

300

130

4-14

160

8-18

145

4-18

v

100F

p (D)-20

860

510

215

250

370

170

4-14

180

8-18

160

8-18

v

100F

p (D)-32

860

510

215

250

370

170

4-14

180

8-18

160

8-18

v

 

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About Us
Kaixin Pipeline Technologies Co., Ltd.
Founded in 1999, Kaixin Pipeline Technologies Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing, sales, and service. As a famous China FP Direct-Coupled Centrifugal Pump GB Standard Suppliers and FP Direct-Coupled Centrifugal Pump GB Standard Factory, the company holds multiple prestigious certifications, including National High-Tech Enterprise, “Little Giant” Specialized and Sophisticated SME, National Single Product Champion (Cultivation), Provincial Technology-based SME, Ningbo Specialized and Sophisticated SME, Ningbo Single Product Champion (Cultivation), Ningbo Polymer Pipe & Valve Technology R&D Center, District-Level Green Factory, Ningbo Four-Star Management Innovation Enterprise, and Enterprise Data Management Capability Maturity Level 2.
We specialize in developing, producing, and supplying non-metallic corrosion-resistant products for chemical applications, including plastic valves, pipes, pipe fittings, and corrosion-resistant pumps. Our product portfolio spans materials such as PVC-C, PVC-U, PVDF, PPH, and FRPP, with a comprehensive range of types and specifications. Notably, our butterfly valves can reach DN1000 in diameter, while pipes and fittings extend up to DN800, addressing market gaps and maintaining our competitive edge in the industry.
Guided by the principle of “Technology-Driven, Keeping Pace with the Times,” Kaixin allocates nearly RMB 10 million annually to R&D. We ensure superior product quality through standardized automated manufacturing and strict sourcing of imported raw materials. Aligned with our international development strategy, we continuously monitor global market trends and leverage digital channels to bring high-quality “Made in China” products to customers worldwide.
Ningbo • Fenghua R&D & Production Base
With a total investment of RMB 200 million, Kaixin Ultra-Pure Pipe Technology (Ningbo) Co., Ltd. has established a new materials laboratory in collaboration with universities and research institutes, built a modern manufacturing base, and installed 8 fully automated production lines for modified plastics and 8 for polymer materials. The facility is dedicated to the R&D, production, and application of new modified plastics and polymer materials. Kaixin is also committed to attracting top talent across disciplines, continuously driving product innovation and brand development, with the goal of becoming a globally recognized leader in the R&D and manufacture of polymer valves, pipes, and fittings.
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