Safety Valves
Model 521KR - "Sure Shear" U-Clamp Anchor
Secures any remote pump safety valve, conforming with NPFA Code 30. A quick, easy and permanent way of mounting a safety valve. Saves time and money in anchoring.
Features
- For Retro-Fit and New Installations
- Eliminates Need for Expensive Pump Boxes or Stabilizer Kits
- Quick, Easy, and Permanent
- Fits Any Major Safety Valve
- Saves Time and Money in Anchoring
- Assures Positive Shearing Action During Accidental Impact
- A Securely Anchored Valve Conforms with NPFA Code-30
- Compatible with E-85
Construction
- Rugged-Plated Cast Iron Body
- Plated Steel Bolts, U-Clamp and Hardware

Model 521 - Single Poppet Safety Valve
Maximizes safety and prevents fuel spillage and fire hazard. The safest safety valve. The poppet and seat are completely independent of the top shear section, so even with the top off, the valve assures a 100% liquid tight seal.
Application
Maximizes safety and prevents fuel spillage and fire hazard.
Features
- A 100% Seal
- Unobstructed Flow
- The Poppet and Seat Are Completely Independent of the Top Shear Section, So Even with the Top Off, the Valve Assures a 100% Liquid Tight Seal
- The Single-Link Design Provides Ease of Operation and Reduced Maintenance
- A Stainless-Steel Reset Nut Eliminates Stripping the Fusible Link During Valve Reset, Reducing Downtime by Allowing Manual Reset Even Under Pressure
- All Universal Safety Valves Are Protected by Zinc Plating, Assuring Maximum Corrosion Resistance, Unlike Competitive Products That Are Only Painted
- An Air Test Port Allows Line Testing Without Breaking the Integrity of the Line
- Raised Bosses Provide Secure Anchoring
Construction
- Zinc-Plated Cast Iron Body and Top
- Stainless Steel Spring and Shaft
- Buna-N Seal
Model 521DP - Double Poppet Safety Valve
Maximum safety in a double-poppet safety valve with two independent seals. The safest safety valve. Only Universal uses an independent shear section for easy replacement. No need to remove the top poppet as with competitive products. Also, no need to buy an expensive replacement poppet top. This reduces the chance of fire and contamination. This unique three-piece design allows for two independent seals which increases safety and reduces future labor and replacement costs.
Application
Maximum safety in a double-poppet safety valve with two independent seals.
Features
- Pressure Relief (Upper Poppet) To Prevent Pressure Build-Up
- Both Poppet and Seats Are Completely Independent of the Shear Section, So When Sheared the Valve Assures a 100% Liquid Tight Seal
- The Single Link Design Provides Ease of Operation and Reduced Maintenance
- An Air Test Port Allows Line Testing Without Breaking the Integrity of the Line
- Raised Bosses Provide Secure Anchoring
- Optional Model 522DP With 2″ External Male Threads for Easy Connection to Secondary Containment Piping
Construction
- Zinc-Plated Cast Iron Body and Top
- Stainless Steel Spring, Shaft, and Reset Nut
- Buna-N Seal
Model 522 - Single Poppet Safety Valve
Maximizes safety and prevents fuel spillage and fire hazard. The safest safety valve. The poppet and seat are completely independent of the top shear section, so even with the top off, the valve assures a 100% liquid tight seal.
Application
Maximizes safety and prevents fuel spillage and fire hazard.
Features
- A 100% Seal
- Unobstructed Flow
- The Poppet and Seat Are Completely Independent of the Top Shear Section, So Even with the Top Off, the Valve Assures a 100% Liquid Tight Seal
- The Single-Link Design Provides Ease of Operation and Reduced Maintenance
- A Stainless-Steel Reset Nut Eliminates Stripping the Fusible Link During Valve Reset, Reducing Downtime by Allowing Manual Reset Even Under Pressure
- All Universal Safety Valves Are Protected by Zinc Plating, Assuring Maximum Corrosion Resistance, Unlike Competitive Products That Are Only Painted
- An Air Test Port Allows Line Testing Without Breaking the Integrity of the Line
- Raised Bosses Provide Secure Anchoring
- Model 522 With 2″ External Male Threads on the Bottom for Easy Connection to Secondary Contaiment Piping
Construction
- Zinc-Plated Cast Iron Body and Top
- Stainless Steel Spring and Shaft
- Buna-N Seal
Model 522DP - Double Poppet Safety Valve
Maximum safety in a double-poppet safety valve with two independent seals. The safest safety valve. Only Universal uses an independent shear section for easy replacement. No need to remove the top poppet as with competitive products. Also, no need to buy an expensive replacement poppet top. This reduces the chance of fire and contamination. This unique three-piece design allows for two independent seals which increases safety and reduces future labor and replacement costs.
Application
Maximum safety in a double-poppet safety valve with two independent seals.
Features
- Pressure Relief (Upper Poppet) To Prevent Pressure Build-Up
- Both Poppet and Seats Are Completely Independent of the Shear Section, So When Sheared the Valve Assures a 100% Liquid Tight Seal
- The Single Link Design Provides Ease of Operation and Reduced Maintenance
- An Air Test Port Allows Line Testing Without Breaking the Integrity of the Line
- Raised Bosses Provide Secure Anchoring
- Model 522DP With 2″ External Male Threads on the Bottom, for Easy Connection to Secondary Containment Piping
Construction
- Zinc-Plated Cast Iron Body and Top
- Stainless Steel Spring, Shaft, and Reset Nut
- Buna-N Seal