Flow Control - Valves & Hydrants​

Resilient Seated Gripper Valves

Derwent Resilient Seated Gripper Valves for PE, made in conjunction with AFC, are manufactured to AS/NZS 2638.2. The Gate Valves are applicable for water and waste water applications. Valves are available in both Anticlockwise and Clockwise configuration. Valves are supplied with Key Cap as standard,  ISO mounting plate for fitting, gearbox or actuators are available via special order.

Applications:

The Derwent Gripper Valves are for use in Potable Water, Waste Water, Fire, Irrigation, Water Circulation and Heating and Cooling applications and are suitable for both above and below ground installation.

Installation:

  1. If using PE pipes with thin walls rated (> SDR 21) and low internal pressure, we recommend the use of a support liner.
  2. Ensure pipe has a chamfered end prior to fitting to reduce the chance of seal damage and aid in inserting the pipe. (Refer to pipe manufacturers recommended chamfer size). Derwent recommendation.
  3. Apply an approved pipe lubricant to the pipe end to assist with fitting.
  4. Push the pipe end into the end of the socket.(Refer to insert depth on the back)
  5. Tighten the locking ring bolts evenly around the fitting ensuring the ring is tight on the stop bushes.
Product CodeDescription

SIZE RANGE:

DN80 – 300
Note: 125 and 180 currently available in other size.

ALLOWABLE OPERATING PRESSURE:

1600 kPa; 1.6 Mpa

MAXIMUM TEST PRESSURE (Shell):

2400 kPa, 2.4 Mpa

MAXIMUM TEMPERATURE:

40 Deg °C

CERTIFICATION:

SAI Global

WATERMARK LIC. No.:

25890

STANDARDS MARK LIC. No.

25890

WSAA SPRAISAL No.

PA1511

PIPE SIZEBOLT DIMENSIONTORQUE MIN NMTORQUE MAX NM
63 – 110M105060
125 – 140M126070
160 – 200M147080
225 – 280M12690100
315 – 450M20110120

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