Double Flapper Check Valve

Product Detail

Xi'an ZZ Top Oil Tools Co.,Ltd is one of the top level double flapper check valve manufacturers and suppliers, with professional factory, we are able to produce API and oilfield double flapper check valve, welcome to contact us.

1.Introduction

The double flapper check valve is the standard part of the coiled tubing string, when the coiled tubing string or surface equipment is failed to work or damaged, the double flapper check valve will prevent the down-hole liquid refluxing into the tubing string. The double flapper check valve is designed with dual seal structure to improve the reliable of the sealing, the elastomeric seal is mainly for the low pressure sealing and the metal sealing is for the high pressure sealing.

This style of flapper check valve can be utilized on low or high-pressure

applications.




2.Feature and benefits

*Dual elastomer seal for each group of flapper

*Designed for working in high & low-pressure wells 

*Easy to install onto the coiled tubing bottom hole assembly

* Removable flapper, easy to maintain

*Full bore design




3.Application


All standard Coiled Tubing Operations

Milling operations

Fishing operations




CT Spec.(in)	Max. OD(mm)	Min ID (mm)	W.P. (Psi)	Connection Length
1.250	31.8	8.0	10000	305.0
1.500	38.0	10.0	10000	335.8
1.750	44.5	16.0	10000	409.0
2.000	50.8	18.0	10000	414.5
2.250	57.0	25.0	10000	454.5
2.375	60.0	26.0	10000	454.5
2.875	73.0	32.0	10000	478.5