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Accumulator Safety Blocks - SBA Series - (Americas)
*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.
Parker’s range of SBA safety blocks is available in NG10, NG20 and NG32 sizes. The safety and shut-off valve turns 90° to isolate the accumulator instantly from the hydraulic system, in emergency shut-off or for maintenance purposes. Once isolated, the accumulator can be safely discharged to tank via either a manual or electrically controlled dump valve. System protection is provided by either a PED-approved, tamper-proof pressure relief valve, or an adjustable pressure limiting relief valve.
SBA safety blocks permit safe, simple connection of an accumulator to a hydraulic system. Suitable for use with all types of accumulators – bladder, piston and diaphragm – their compact, multi-function design saves space and reduces connections. By cutting the time required for installation and maintenance procedures, SBA safety blocks enable productivity and profitability to be maximized while system downtime is kept to a minimum. To simplify installation, a full range of adapters is available to suit all common port sizes and styles. For diagnostic purposes and continuous pressure monitoring, all SBA safety blocks feature two maintenance ports.
The European Pressure Equipment Directive (PED) 97/23/EC states that a safety device must be fitted to all accumulators to provide a shut-off facility, pressure limiting and pressure release functions, and measurement points. Parker’s SBA range fulfils all of these requirements in a single, compact unit. The safety block should always be mounted as close as possible to the accumulator. Commissioning and maintenance of the safety block and associated equipment must be performed by qualified personnel.
Markets:
• Industrial
• Marine & Offshore
• Oil & Gas
• Renewable & Wind Energy
• Power Generation
• Transport Rail & Truck
Features/Benefits:
• Lock-Out/Tag-Out option:
• Available in a variety of port configurations to connect safety block to accumulator
• Manual and Electrical Discharge Valves Options
• Pressure relief valve can be replaced by a valve with a different pressure setting
• PED 97/23/EC Type Approval
• Seal material Nitrile, Fluorocarbon readily available option
Applications:
• Shock Absorption
• Auxiliary Power
• Supplemental Flow
• Noise Attenuation
• Transfer Barrier
• Energy Conservation
• Thermal Expansion
• Emergency Power
• Leakage Compensation
Read More...SBA safety blocks permit safe, simple connection of an accumulator to a hydraulic system. Suitable for use with all types of accumulators – bladder, piston and diaphragm – their compact, multi-function design saves space and reduces connections. By cutting the time required for installation and maintenance procedures, SBA safety blocks enable productivity and profitability to be maximized while system downtime is kept to a minimum. To simplify installation, a full range of adapters is available to suit all common port sizes and styles. For diagnostic purposes and continuous pressure monitoring, all SBA safety blocks feature two maintenance ports.
The European Pressure Equipment Directive (PED) 97/23/EC states that a safety device must be fitted to all accumulators to provide a shut-off facility, pressure limiting and pressure release functions, and measurement points. Parker’s SBA range fulfils all of these requirements in a single, compact unit. The safety block should always be mounted as close as possible to the accumulator. Commissioning and maintenance of the safety block and associated equipment must be performed by qualified personnel.
Markets:
• Industrial
• Marine & Offshore
• Oil & Gas
• Renewable & Wind Energy
• Power Generation
• Transport Rail & Truck
Features/Benefits:
• Lock-Out/Tag-Out option:
• Available in a variety of port configurations to connect safety block to accumulator
• Manual and Electrical Discharge Valves Options
• Pressure relief valve can be replaced by a valve with a different pressure setting
• PED 97/23/EC Type Approval
• Seal material Nitrile, Fluorocarbon readily available option
Applications:
• Shock Absorption
• Auxiliary Power
• Supplemental Flow
• Noise Attenuation
• Transfer Barrier
• Energy Conservation
• Thermal Expansion
• Emergency Power
• Leakage Compensation
| Action | Part No. | Availability | Partner Available | Price | For Fluid Type | Coating | Kinematic Viscosity | Operating Temperature | Valve Type | Maximum Operating Pressure | Division | Electrical Part Option | Number of Ports | Port Connection Type | Special Options | Pressure Relief Valve | Size | Pressure Relief Setting (psig) | Actuation Device Type | Seal Material |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SBAR32E1T5-200-TA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Preset pressure (CE Approved) | NG32 | Set at 200 bar (2900 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-200-TL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Preset pressure (CE Approved) | NG32 | Set at 200 bar (2900 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-210-TA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Preset pressure (CE Approved) | NG32 | Set at 210 bar (3045 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-210-TL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Preset pressure (CE Approved) | NG32 | Set at 210 bar (3045 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-250-TA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Preset pressure (CE Approved) | NG32 | Set at 250 bar (3625 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-250-TL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Preset pressure (CE Approved) | NG32 | Set at 250 bar (3625 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-280-TA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Preset pressure (CE Approved) | NG32 | Set at 280 bar (4061 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-280-TL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Preset pressure (CE Approved) | NG32 | Set at 280 bar (4061 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-300'-AA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Adjustable (non-CE) | NG32 | 201 to 315 bar (2915 to 4568 psi) range | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-300'-AL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Adjustable (non-CE) | NG32 | 201 to 315 bar (2915 to 4568 psi) range | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-300-TA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Preset pressure (CE Approved) | NG32 | Set at 300 bar (4351 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-300-TL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Preset pressure (CE Approved) | NG32 | Set at 300 bar (4351 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-330'-AA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Adjustable (non-CE) | NG32 | 316 to 345 bar (4582 to 5003 psi) range | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-330'-AL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Adjustable (non-CE) | NG32 | 316 to 345 bar (4582 to 5003 psi) range | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-330-TA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Preset pressure (CE Approved) | NG32 | Set at 330 bar (4786 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E1T5-330-TL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Preset pressure (CE Approved) | NG32 | Set at 330 bar (4786 psi) | 24 VDC Normally Open (NO) | Fluoroelastomer | ||
| SBAR32E3T1-050'-AA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Adjustable (non-CE) | NG32 | 25 to 50 bar (377 to 725 psi) range | 115 VAC Normally Open (NO) | Buna-N / Nitrile | ||
| SBAR32E3T1-050'-AL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Adjustable (non-CE) | NG32 | 25 to 50 bar (377 to 725 psi) range | 115 VAC Normally Open (NO) | Buna-N / Nitrile | ||
| SBAR32E3T1-050-TA1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Standard | Preset pressure (CE Approved) | NG32 | Set at 50 bar (725 psi) | 115 VAC Normally Open (NO) | Buna-N / Nitrile | ||
| SBAR32E3T1-050-TL1 | Quote Required | TBD | Mineral oil according to DIN/ISO. For other fluid types, please contact factory. | Black zinc phosphated | 10 to 800 | 5° F (-15° C) to 176° F (80° C) | - Shut-off valve: ball valve<br/>- Pressure relief: poppet-type valve with dampening<br/>- Manually-operated discharge valve: poppet-type valve<br/>- Electrically-operated discharge valve: poppet-type valve (where fitted) | 5075 psi (350 bar) | Accumulator and Cooler Division | U=24VDC, 105VDC (for 115V/60 Hz AC supply), P=26W, 100% ED, IP 65 to DIN 40050, connector to DIN 43650 type A | - A port: Flange<br/>- P port: G1 1/2<br/>- T port: G1<br/>- M1 port: G1/2<br/>- M2 port: G1/4 | BSPP Ports | Lock-out Tag-out | Preset pressure (CE Approved) | NG32 | Set at 50 bar (725 psi) | 115 VAC Normally Open (NO) | Buna-N / Nitrile |
