Back Pressure Valves - 1/4" and 1/2" PVC & CPVC
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Back Pressure Valves - 1/4" and 1/2" PVC & CPVC

Back Pressure Valves - 1/4" and 1/2" PVC & CPVC

Product Code: CW-EBPV
ChemWorld Quills
BPV Options: EBPV-025-PVC
BPV Kit: No
Price:
$399.50
Stock:
In stockFREE DELIVERY Availability: Usually Ships in 24 Hours

Description

Back Pressure Valves

Back Pressure Valves - 1/4" and 1/2" PVC & CPVC.
Diaphragm pressure relief valves are designed to protect pumping systems from over pressure damage caused by defective equipment or blockage in the pump system line.
  • Reliability and low cost
  • Adjustable from 15 to 150 psi
  • 2 port (standard) or 3 port (with gauge)
  • Viton diaphragm standard (others available)
  • Full range of chemically resistant wetted materials
  • Sizes from 1⁄4” to 1” depending on model
Diaphragm pressure relief valves operate when the pressure in the pumping system exceeds the preset pressure of the valve. The diaphragm is held against the valve seat by an internal spring. When the preset pressure is exceeded the diaphragm is forced up and the system fluid flows out the relief port, back to the system fluid tank or to the suction side of the pump. The valves are pre-set at 40 psi; however they are field adjustable from 10 to 150 psi, (optional 350 psi) via the adjustment screw. The relief valve should be set approximately 15 psi higher than the system pressure. Installation should be made as close to the pump as possible, without any valves or accessories between the relief valve and the pump.

A pressure test on every back pressure relief valve prior to shipping.

This ensures the unit will operate leak-free and to the specified pressure ratings.

These pressure valves come standard without a gauge port or gauge. When ordering please specify if a gauge port and/or gauge is required from the part numbers below.

Part Numbers:
  • Model EBPV-025-PVC - 1/4” NPT, PVC Back Pressure Valve with Viton Diaphrag. 140 F Maximum Temperature.
  • Model EBPV-050-PVC - 1/2” NPT, PVC Back Pressure Valve with Viton Diaphrag. 140 F Maximum Temperature.
  • Model EBPV-025-CPVC - 1/4” NPT, CPVC Back Pressure Valve with Viton Diaphragm. 140 F Maximum Temperature.
  • ModelEBPV-050-CPVC - 1/2” NPT, CPVC Back Pressure Valve with Viton Diaphrag. 140 F Maximum Temperature
Optional model EBPV-MK Back Pressure Valve Mounting Kit with Hardware may be added to your order.

Please email us for custom made to order valve quotes for the following materials:

  • Polypropylene glycol - (140F Max Temp)
  • 316 SSTL - (300F Max Temp)
  • PTFE (Teflon) - (140F Max Temp)
  • PVDF (Kynar) - (140F Max Temp)
  • Alloy 20 - (300F Max Temp)
  • Hastalloy C276 material designs - (300F Max Temp)
Ports up to 1" may be ordered as well. Made in the USA.

Shipping and Transit Times

This product is stocked & shipped daily from Atlanta, Georgia; Taylor, Michigan; and Salt Lake City, Utah.

Daily shipping cut off time is generally 1 pm, based on the local time zone for same-day shipping. If you need your Glycerin to ship today, please indicate so in the notes section upon check out. We will email mail you ASAP if we can meet your demands.

Notes:

  • We only ship via FedEx Ground. No UPS or USPS.
  • We can not ship to PO boxes.
  • This map illustrates service schedules in business days as of March 2026 for FedEx Ground shipments.
  • ChemWorld is not responsible for delays due to weather or FedEx transit issues. Please take this into account when ordering.

 

Overnight / Expedite Shipping:

  • Orders must be received by noon EST.
  • We only ship FedEx expedite shipments. No UPS or USPS.
  • To calculate your costs, log into your FedEx Account. Origin zip code is 30144, 48180, or 84119.

 

Directions for Overnight Shipping:

  1. The order must be placed by noon.
  2. Order as normal through the website.
  3. If you have a FedEx account number, enter it in the notes section during ordering with your exact shipping requirements (Next Day 8:30, Next Day 10:30, Next Day 20:00, Fedex 2 AM, or FedEx Express Saver). You are done. We will email you ASAP.
  4. If you do NOT have a FedEx account number, we offer overnight delivery for this product. The cost is $150 for Next Day 10:30 AM per 5-gallon box. Enter your order as normal and enter your 3 or 4 digit security code in the notes section with your shipping requirements. You are done. We will email you ASAP.

 

If it is later then noon, email us at sales@buychemicalsdirect.com with your request. We will contact you ASAP. You can also call in the order at 800-658-7716 and reference exactly what you need. We will contact you.

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