Double-flap check valve

The double‑baffle check valve is a critical component of the coiled tubing standard tool string. It prevents bottomhole pressure from surging upward during tool string running or retrieval, thereby protecting wellhead equipment. The two‑stage baffle valves operate independently: the rubber‑based seal ensures tight shut‑off at low bottomhole pressures, while at higher pressures the rubber compresses, engaging metal‑to‑metal sealing to withstand elevated pressures. During operations, if ball‑dropping or short‑stick insertion is required, steel balls or short sticks may pass through the valve from top to bottom.
Consultation
Double-flap check valve
Product Specifications
 

Product Number

Tool outer diameter

Minimum inner diameter

Pressure

Thread specification

(in)

(in)

MPa

D96-5168-100

1.687

0.687

70

1” AMMT

D96-5175-100

1.750

0.687

D96-5212-100

2.125

0.891

1.5” AMMT

D96-5237-100

2.375

1.000

D96-5287-100

2.875

1.369

2 3/8” PAC

D96-5312-100

3.125

1.442

D96-5312-102

3.125

1.442

2 3/8” EUE

D96-5387-101

3.875

2.125

2 7/8” EUE

 

 

Product Features

 

  • Two-stage independent sealing system, ensuring more reliable sealing performance;
  • Insert-type sealed valve body, facilitating maintenance;
  • The large internal bore allows tools such as steel balls to pass through;
  • Maximum operating temperature: 180°C;
  • Various buckle types are available;
  • Materials suitable for H2S environments are available.

 

 

Double-flap check valve

%E7%AC%AC%E4%B8%80%EF%BC%8C%E6%9C%80%EF%BC%8C%E4%BC%98%E7%A7%80%EF%BC%8C%E5%A2%9E%E5%BC%BA%EF%BC%8C%E4%B8%80%E6%B5%81%EF%BC%8C%E5%8D%93%E8%B6%8A%EF%BC%8C%E9%A2%86%E5%85%88%EF%BC%8C%E5%85%88%E8%BF%9B%EF%BC%8C%E5%BC%95%E9%A2%86

Sorry，当前栏目暂无内容!

您可以查看其他栏目或返回 首页

Sorry，The current column has no content!

You can view other columns or return Home