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VBR Variable Bore Ram Assembly for BOP 11" 5000PSI

VBR Variable Bore Ram Assembly for BOP 11" 5000PSI

Brand Name : Rongsheng & Shenkai
Model Number : VBR Variable Bore Ram Assembly for BOP 11" 5000PSI
Certification : API 16A
Place of Origin : China
MOQ : 1 set
Price : USD 100-5000 negotiable
Payment Terms : T/T
Supply Ability : good
Delivery Time : 20-60 days
Packaging Details : Standard export packing for VBR Variable Bore Ram Assembly for BOP 11" 5000PSI
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VBR Variable Bore Ram Assembly for BOP 11" 5000PSI

Product Description

Ram-type blow out preventer is important equipment used in oil drilling operations. Variable bore ram-type blowout preventer, as a improved type, is capable of sealing around drill pipes with a range of sizes and have advantanges such as low cost and convenience, expatiate on the sealing well mechanism, this paper discusses the structural characterstics of several typres fo variable bore ram, the operation of the varialble bore ram is simulated with the finite element model. the distribution of the stress is analysed, which provides the toudation for optinizing the design of variable bore ram-type blowout preventer.

BOP parts that we supply all come from original manufacturers, they are 100% interchangeable.

Apply to below BOP:


Type:Annular BOP, Single Ram BOP, Double Ram BOP, Shear Ram BOP
Working pressure:2000psi-15000psi(14 Mpa-105Mpa)
Operating temperature:-18deg--121deg
Bore size:7 1/16"-21 1/4"
Top & bottom connection:Flanged,studded

VBR Variable Bore Ram Assembly for BOP 11" 5000PSIVBR Variable Bore Ram Assembly for BOP 11" 5000PSI


In the structure, it is divided into annular blowout preventer with spherical plastic core, annular blowout preventer with cone-shaped plastic core, and blowout preventer with tube-shaped plastic core. Annular BOP top cap and housing are connected by bolts or claw blocks.

Blowout preventer with spherical plastic core and dust-proof ring.

Performance characteristics: reasonable structure, easy operation, long life of plastic core, adapt to a wide range, capable to seal pipe string with nominal paths from 0-DN in and shapes, better performance by combining with ran blowout preventer in the use.

Main Parameters

1)Standard: API

2)Pressure: 2000~15000psi(14-70Mpa)
3)Size:Nominal bore7 1/16~21 1/4" (179.4~539.75mm)
4) U type, S type Available
5) Shear/ Pipe/Blind Ram

6) According to the latest API Spec 16A standard,and quality standard of ISO9001.

ModelDimensions (mm)Weight (kg)Working temperatureRange of seal well
FH18-21Φ478x21565.2- 18~93°C0~180
Packaging & Shipping

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Company Information

Lake Petro company is a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. Following the principle of "quality first, science and technology innovated, people oriented", every Lake Petro person is sparing no effort to provide the customers with best products and services. Through efforts of Lake Petro staff, our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). With super quality, reasonable price and professional service, Lake Petro company has become VIP (assigned) supplier and built strategic partnership with some coutries' national petroleum companies.


How to order?

Please send us your inquiry with detail item description or with Model number.

If there is no packing demand we take it as our regular exported standard packing.

We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.

You send us your detail requirement, we provide quotation to you.

Can I expect a quality products?

All the production and processing are strictly according to ISO 9001:2008 and API standard. At the same time, mature production technology ensuring the quality satisfy international request. We also welcome the third party inspection, such as BV, SGS and TUV.

The information you may like to know before Payment:

1. Methods of Payment:

T/T (Telegraphic Transfer) or L/C at sight

2. Shipping way

Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

Bulk order: we suggest by air or by sea.

3. Quality Control

We have our own experienced QC.

There will be strict inspection and testing for every order before shipping out.

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