FV 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.
Kaixin Pipeline Technology Co., Ltd., founded in 1999, is a high-tech enterprise integrating R&D, manufacturing, sales, and services. It has been recognized as a National-level Key Cultivation Enterprise for "Specialized, Sophisticated, Differential and Innovative" Little Giants, a National-level Key Cultivation Enterprise for "Single Champions," a Provincial Sci-Tech SME, a Ningbo Municipal "Specialized, Sophisticated, Differential and Innovative" SME, a Municipal Key Cultivation Enterprise for "Single Champions," a Municipal Polymer Pipe and Valve Technology R&D Center, a District Green Factory, a Municipal Enterprise Management Innovation (Four-Star) Enterprise, and a Data Management Capability Maturity (Level 2) Enterprise.
As a famous China FV Direct-Coupled Centrifugal Pump GB Standard Suppliers and FV Direct-Coupled Centrifugal Pump GB Standard Factory, the company specializes in the R&D, production, and sales of non-metallic chemical anti-corrosion products, including plastic valves, plastic pipes, plastic fittings, and corrosion-resistant pumps. Its material portfolio covers PVC‑C, PVC‑U, PVDF, PPH, and FRPP, offering a comprehensive range of products and specifications. The maximum diameter for butterfly valves reaches DN1000, while pipes and fittings can be manufactured up to DN800. Leveraging its municipal‑level technology R&D center, Kaixin has achieved full-process control from raw material selection and automated production to final product inspection. Its products are widely applied in corrosive environments across industries such as chemical processing, electroplating, and environmental protection, meeting customers' specific requirements for large diameters, temperature resistance, pressure resistance, and other special conditions.
Kaixin steadfastly follows the development philosophy of "technology‑driven and in step with the times," investing nearly ten million yuan annually in R&D. Through automated standardized production and strict selection of imported raw materials, the company ensures consistent product quality. Guided by its foreign trade development strategy, Kaixin keeps close to market trends and leverages the "Internet+" model to promote "Made in China" on the global stage.
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