Premier Threaded Blow-Out Preventer Model 300T
Patented Snap-Loc™ seal design with new inter-locking ram in a forged alloy steel body. Pressure-balanced rams use well pressure to assist closure. 100% factory pressure tested. Standard NACE MR-01-75. Rated to -50°F. EUE and LP threaded connections in 4" and 5" nominal.
Quick Specifications
BODY MATERIAL Forged Alloy Steel
SIZES 4" & 5" Nominal — Full Opening
RAM SIZES 1-¼", 1-½" & Blind
LOW TEMP RATING -50°F
NACE MR-01-75 Standard
FACTORY TESTED 100% Pressure Tested
CONNECTIONS — BOX UP 2-⅜" EUE · 2-⅞" EUE · 3-½" EUE · 3" LP
Key Features
WHY THE MODEL 300T
Patented Snap-Loc™ Seal
WSI's patented Snap-Loc™ seal system delivers superior sealing integrity that traditional ram packing designs cannot match. Positive snap engagement means no slippage under pressure cycling.
Forged Alloy Steel Body
Machined from forged alloy steel bar — not a casting. Eliminates all risk of porosity-related failure that can occur in cast iron or cast steel BOP bodies under cyclic pressure loading.
Inter-Locking Ram Design
NEW inter-locking ram design provides a positive engagement that prevents ram walkout — a known failure mode in conventional BOP designs under sustained wellbore pressure.
100% Factory Pressure Tested
Every single 300T is pressure tested at the factory before it ships. You receive documented, verified pressure test certification with each unit — not a statistical sample.
Pressure-Balanced Rams
-50°F Rated
Rated for low temperature service down to -50°F. Available in high temperature models for steam environments. NACE MR-01-75 standard — no field modification required for sour service.
Full Specifications
BODY MATERIAL Forged Alloy Steel
SIZES 4" & 5" Nominal — Full Opening
RAM SIZES 1-¼", 1-½" & Blind
LOW TEMP RATING -50°F
NACE MR-01-75 Standard
FACTORY TESTED 100% Pressure Tested
CONNECTIONS — BOX UP 2-⅜" EUE · 2-⅞" EUE · 3-½" EUE · 3" LP
Product Notes
- Patented Snap-Loc™ seal provides positive, tamper-resistant closure
- NEW inter-locking ram design prevents ram walkout under pressure
- Pressure-balanced rams — well pressure assists closure, reducing operator effort significantly
- Forged alloy steel body eliminates casting porosity risk of cast iron bodies
- 100% pressure tested from factory before shipment — every unit
- NACE MR-01-75 standard on all Premier BOPs
- Low temperature rated to -50°F for cold climate operations
- Available in high temperature models for steam applications
- Alternative connection sizes available upon request
Compatible Accessories
WSI accessories and complementary products for the Model 300T
Step Up to 5000 PSI
500T
Same Snap-Loc™ seal and inter-locking ram — rated to 5000 PSI for higher pressure applications. Same connection options and body dimensions.
Flanged BOP — 5000 PSI
Flanged version with integral tee and optional hydraulic actuation for 5000 PSI remote or automated well control.
Highest Rating — 10,000 PSI
For the most demanding high-pressure applications, the 1000F dual-ram flanged BOP provides 10,000 PSI service.
Related Products
Other WSI products in the same category that may better suit your application, pressure requirements, or well conditions.
Premier Threaded 500T
5000 PSI
Economy Hammer Cap 300
3000 PSI
Premier Flanged 500F
5000 PSI
Premier Flanged 1000F
10,000 PSI
