La primera cifra (3) indica la disposición de los puertos.

• 3 = Serie 3600 con puertos en ángulo recto
• 4 = Serie 4600 con puertos directos

The second digit (6) indicates shaft sealing.

• 2 = Triple Lip Seal + back-up packing
• 4 = Quad Seal (2) + back-up packing
• 5 = Triple Lip Seal or “standard” Cartridge Seal 
• 6 = Embalaje
• 7 = Mechanical Seal or any non-standard Cartridge Seal 

La tercera y cuarta cifras (11) indican el desplazamiento teórico aproximado en galones estadounidenses por cada 100 revoluciones. Galones/100 Rev. [Litros/100 Rev.]

• 11 [41.6]
• 17 [64.4]
• 22 [83.3]
• 32 [121.1]
• 35 [132.5]
• 43 [162.8]
• 48 [181.7]
• 58 [219.6]
• 65 [246.0]

The letter(s) are only used for special models as indicated:

• CPB – Multi viscosity pump with lobes, timing gear, and bronze bearings
• CPT – Multi viscosity pump with lobes, timing gear, and tungsten bearings
• X – eX pump (extreme condition)

The letter or group of letters (or no letter) indicates special arrangements:

• C – Pump with Cartridge Seal
• E – EVO pump (super extreme condition, wear resistant)
• EC – EVO pump with Cartridge Seal

The letter or group of letters indicates the pump head arrangement:

• BH – NO outboard bearing used for close coupled hydraulic drive using a rigid coupling
• GHB – with outboard bearing and built-on gear reduction unit attached
• GHBO – with outboard bearing and provisions for built-on gear reduction unit but not attached.
• H – NO outboard bearing
• HB – with outboard bearing

The letter (or no letter) indicates mounting:

• M – Pump mounted on base (GHB, H, or HB) or mounted with SAE hydraulic bracket kit (BH)

En las bombas GHB, la letra (O) indica bomba con cojinete exterior y disposiciones de montaje auxiliar (no incluye reductor incorporado).

La letra (F o A) indica el estilo del puerto

• Sin letra = Bomba con conexiones roscadas
• F = Pump Case for use with Roper standard flanges (flanges attached is standard)
• A = Pump Case with flange facings to accept ANSI flanges (only in 17 and 22 size)

The letters (RV) indicate type of faceplate installed on pump.

• RV = single direction relief valve faceplate (Standard RV, Jacketed RV)
• BV = placa frontal de la válvula de seguridad bidireccional
• Sin letras = Placa frontal lisa

The letter or group of letters (X, LX) indicates direction of rotation, case orientation, and shaft position.

HIGH DRIVE:

• W or no letter – Clockwise (standard)
• X – Counterclockwise
• Y – Clockwise
• Z – Counterclockwise

LOW DRIVE:

• LW – Clockwise
• LX – Counterclockwise
• LY – Clockwise
• LZ – Counterclockwise

A group of letters and/or numbers to signify options used in that specific pump.
If a spec is not used, the pump is considered to have “standard” options for that series.

El número de TIPO es un número utilizado por Roper Pump Company para la identificación interna de la construcción. Incluya siempre el número de tipo en cualquier referencia a la bomba.

• A = standard pressure 
  • 20-80 PSI in 11, 17, 22 size
  • 20-45 PSI in 32, 35, 43, 48, 58, 65 size
• B = high pressure 
  • 81-125 PSI in 11, 17, 22 size
  • 46-125 PSI in 32, 35, 43, 48, 58, 65 size

Only if the pump is GHB, the next letters are gear ratio (if pump not GHB, omit these ratios):

• 320 = 3.20:1 for 11, 17, or 22 size
• 394 = 3.94:1 for 11, 17, or 22 size
• 426 = 4.26:1 for 32, 35, 43, 48, 58, or 65 size
• 460 = 4.60:1 for 11, 17, or 22 size
• 488 = 4.88:1 for 32, 35, 43, 48, 58, or 65 size
• 566 = 5.66:1 for 32, 35, 43, 48, 58, or 65 size

El número de SERIE es un número único asignado a cada bomba construida por Roper Pump Company.

En cualquier comunicación relativa a esta bomba, Asegúrese siempre de incluir los números de figura, especificación, serie y tipo. para garantizar la correcta identificación de la bomba.